General Electrical System - Repair Instructions BMW X3 E83

12 00 ... INSTRUCTIONS ON STARTING AID

Do not start the engine with help of starting sprays.

Preparation

Conform with the following when starting engine with starting cable.

1. Ensure that jump lead wires are to appropriate cross-section size.
2. Only use fuse-protected jump leads.
3. Check whether the current supplying battery has 12 V voltage.
4. If engine is started from battery of another vehicle, ensure that there is no contact between the bodies of both vehicles.

If the battery in the vehicle supplying power is weak, start the engine of this vehicle and let it run at idling speed.

Carrying out

Always conform with the procedures to avoid injury to persons or damage to parts.

1. On automatic transmission, select "P" setting, apply handbrake.
2. Move the shift lever of vehicles with manual transmission into neutral and apply the parking brake.
3. Ensure that the jump leads cannot get caught in rotating parts, e.g. fan.
4. First connect positive terminals of both batteries with one jump lead (red).
5. Use positive connection point in engine compartment for vehicles with one battery in trunk.
6. Then attach second jump lead (black) to negative terminal of donor battery and to engine ground or body ground on vehicle to be started.

Danger of explosion!

After engine of vehicle to be started has started up, first disconnect the jump lead on the negative terminal/ground connection. Then remove jump lead from positive terminals.

61 00 ... BATTERY

Note. Important notes and instructions for handling batteries in the dealership can be found in: Battery master document Disconnecting battery, refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY Battery charging, refer to 61 00 ... BATTERY CHARGING Welding work, refer to 12 00 ... INSTRUCTIONS FOR WELDING WORK (OVERLOAD PROTECTION OF CONTROL UNITS External jump -starting aid, refer to 12 00 ... INSTRUCTIONS ON STARTING AID

Battery care and maintenance

In low-maintenance batteries, check the acid level at least once a year. If necessary, top up with distilled water up to the top marking.

The increasing number of electronic control units in the car reduces the self-discharging time of the battery (even in standby mode). To maintain the battery service life and to avoid exhaustive discharging, recharge laid -up vehicles every 6 weeks at the latest. The time for self-discharging depends on vehicle type and equipment specification.

Battery test

The battery acid density can be used to measure the charge state. However this test produces uncertainty caused by a design-related range of variation. The acid density e.g. for a charged battery is 1.28 kg/l (in the tropical version the acid density is 1.23 kg/l).

Another interference factor is the acid lamination immediately after filling with distilled water.

Battery wear with partially sulfated and/or heavily contaminated plates will also lead to incorrect acid density test results.

6100 ... Battery charging

If a normal or quick charger is used to charge the battery, the battery must be disconnected from the vehicle electrical system and removed. This prevents damage to paintwork and upholstery.

Ideally, battery charging is performed with BMW-approved charging computers.

If necessary, open existing plugs on the individual cells.

61 00 ... NOTES ON HANDLING OPTICAL FIBERS

Note. The optical fibers are colored differently as follows: Green= MOST (M edia O riented S ystems T ransport) optical fibers Yellow= ISIS ( I ntelligent S afety and I ntegration S ystem) optical fibers Orange=repair optical fibers

Follow instructions for processing cables and optical fibers.

61 00 ... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY

Battery acid is highly corrosive

Do not allow any battery acid to come into contact with the eyes, the skin or clothing. Therefore wear protective clothing, gloves and goggles.

Do not tilt the battery, acid may emerge from the vent opening. In event of contact with acid

If acid is splashed into the eyes, rinse them immediately for several minutes with clear water. You must then consult a doctor without delay.

If acid is splashed onto the skin or clothing, neutralize it immediately with a soapy solution and rinse with lots of water. Seek medical attention immediately if battery acid is accidentally swallowed.

Explosion hazard

Strictly no flames, sparks, naked light or smoking!

A highly explosive mixture of electrolytic gas is created when batteries are charged. The rooms where charging is carried out must therefore always be well ventilated.

Avoid the formation of sparks when handling cables, wiring and electrical devices.

Turn the ignition lock to the 0 position before disconnecting or connecting the battery.

Do not place tools or any similar object on the battery (danger of short-circuiting and explosion!).

61 13 .. UNLOCKING AND DISCONNECTING DIFFERENT PLUG CONNECTIONS

Note. Examples of unlocking and disconnecting different plug connections.

Press lock and open clip in direction of arrow. Disconnect plug connection.

Scheme 20

Press lock and open clip in direction of arrow. Disconnect plug connection.

Scheme 21

Open clip in direction of arrow and disconnect plug connection in direction of arrow.

Scheme 22

Press lock and disconnect plug connection in direction of arrow.

Scheme 23

Press lock and disconnect plug connection in direction of arrow.

Scheme 24

Press lock and disconnect plug connection in direction of arrow.

Scheme 25

Press lock and disconnect plug connection in direction of arrow.

Scheme 26

Press lock and disconnect plug connection in direction of arrow.

Scheme 27

Press lock and disconnect plug connection in direction of arrow.

Scheme 28

61 12 004 Replacing battery positive lead (from battery to engine compartment partition connector)

Necessary preliminary tasks

1. Remove right luggage compartment wheel arch trim, refer to «51 47 161 REMOVING AND INSTALLING/REPLACING RIGHT LUGGAGE COMPARTMENT WHEEL ARCH TRIM»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-47-161-removing-and-installingreplacing)
2. Remove instrument panel trim, refer to «51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-45-030-removing-and-installing)
3. Remove right front seat, refer to «52 13 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (NORMAL/MANUAL)»(/bmw/x3/e83-2003-2006/remont/seats/#seats-repair-instructions__52-13-000-removing-and-installing) or «52 16 000 REMOVING AND INSTALLING FRONT SEAT (SPORTS/ELECTRIC), LEFT OR RIGHT»(/bmw/x3/e83-2003-2006/remont/seats/#seats-repair-instructions__52-16-000-removing-and-installing)
4. Remove central bass cover, refer to «65 12 050 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT CENTRAL BASE SPEAKER (UNDER FRONT SEAT)»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#audio-navigation-anti-theft-and-restraints-repair-instructions__65-12-050-removing-and-installingreplacing)
5. Remove panel for door pillar on right, refer to «51 43 150 REMOVING AND INSTALLING OR REPLACING TRIM FOR LEFT OR RIGHT DOOR PILLAR (BOTTOM)»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-43-150-removing-and-installing)

Unfasten plug connection (2) and disconnect.

Scheme 29

Disconnect battery negative lead (1). Refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Open positive terminal cover (3).

Release nut (3), tightening torque, 61 12 1AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Scheme 30

Disconnect lead (4).

Release nut (1) of safety battery terminal (2), tightening torque, 61 21 1AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Detach safety battery terminal (2) towards top, lay to one side and secure.

Lever out covers (1) and remove.

Scheme 31

Release screws (2).

Lift out rail (3).

Cut carpet (1) as illustrated and fold back.

Scheme 32

Installation

Join cutting lines together at marked points (2) using cable ties (short).

Unlock cable lug mounting (1) and fold back. Release screw (2), tightening torque, 61 12 2AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Scheme 33

Unclip cable lug mounting (1) from positive battery cable (3) and remove.

Note. For purposes of clarity, the following illustrations show the front/rear carpet removed.

Raise front/rear carpet in area of battery positive lead.

Remove front insert (1).

Scheme 34

Remove battery positive lead (1) from cable guides (2).

Scheme 35

Detach battery positive lead (1) from cable guides (2) and remove.

Scheme 36

For information, refer to 61 13 .. UNLOCKING AND DISCONNECTING DIFFERENT PLUG CONNECTIONS .

For procedure, refer to 61 00 ... NOTES ON HANDLING OPTICAL FIBERS .

61 13 Special tools for wiring harness repairs

Special tools required

1. 61 1 150
2. 61 1 190
3. 61 4 320
4. 61 9 020
5. 61 9 041
6. 61 9 044

Repair ranges I, II, III for vehicle electrical system

1. I Order No.: 81 24 9 408 080
2. II Order No.: 81 24 9 408 300
3. III Order No.: 81 24 9 408 400

Sourcing reference: BMW Parts Service.

Note. Operating instructions for the special tools contained in these repair ranges, refer to "Tool for wiring harness repair, repair range I, II, III", special tool 61 8 084.

Scheme 37

Repair range IV for vehicle electrical system, special tool 61 9 020

Contents

Scheme 38

1. Special tool 61 9 041 (hand pliers)
2. Special tool 61 9 042 (matrix)
3. Special tool 61 9 043 (wire
4. Special tool 61 9 044 (matrix)

Note. Operating instructions for the special tools contained in the this repair range, refer to "repair range IV for vehicle electrical system (Vol. 1 / Vol. 2 / Vol. 3 / Vol. 4)", special tool 61 9 029.

Special tool 61 9 043 (wire stripper with wire cutter) for cutting and stripping wires.

Scheme 39

Handling

Cutting to length and stripping insulating from cables

Special tool 61 9 041 (hand pliers) with special tool 61 9 042 (matrix) for crimping connectors and contact tubes for fan connectors up to a wire cross-section of 2.5 mm2 and for pushing on contact tubes for fan connectors.

Scheme 40

Handling

Crimping stop parts (contacts).

Fan connector for retrofitting/repairs.

Special tool 61 9 041 (hand pliers) with special tool 61 9 044 (matrix) for crimping cable guide and strain relief device on antenna elbow plug.

Scheme 41

Handling

Antenna elbow plug on radio receiver.

Special tool 61 1 150 (release and pressing - out tool) for

1. releasing round plug housings
2. releasing relay carriers
3. pressing out contacts
4. removing indicator lights

Scheme 42

Handling

Opening plug housings and removing contacts of different plug systems

Repair kit for ignition cables and for crimping fan connector receptacles 4 mm 2

Scheme 43

Handling

Crimping stop parts (contacts).

Service Information 1 03 89 (037)

Special tool 61 4 320 (crimping set with pliers) for

1. Cutting to length and stripping insulation from optical fibers
2. Crimping optical fibers
3. Crimping MPQ contacts
4. Crimping MQS contacts

Scheme 44

Special tool 61 1 190 pliers for insulation displacement connector for repairing ribbon cables.

Scheme 45

Handling

Repairing ribbon cables.

For information, refer to 61 13 .. UNLOCKING AND DISCONNECTING DIFFERENT PLUG CONNECTIONS .

61 13 ... Base of tab connector housings

Unlock hook (1) with special tool 61 1 360 and slide plug housing downwards out of base.

Scheme 46

61 13 ... Crimping Micro Power Quadlock contacts (MPQ)

Special tools required

1. 61 4 320

To crimp MPQ contacts, use pliers 61 4 321 (1) in conjunction with crimping head 61 4 325 (2) from crimping set 61 4 320.

Note. Pliers (1) open automatically as far as they will go when handles are pressed together.

Scheme 47

Open pliers (1).

Note. Place contact (2) with utmost care in designated nest (observe cable cross-section) in crimping head (3). Make sure it is exactly positioned.

Place MPQ contact (2) in crimping head (3). Close pliers (1) one notch.

Scheme 48

Note. Follow procedure for cutting and stripping insulation from cables.

Insert stripped cable (2).

Scheme 49

Close pliers (1) fully.

Open pliers (1) and remove cable (2).

Note. Check contact for correct crimping.

61 13 ... Crimping Micro Quadlock System contacts (MQS)

Special tools required

To crimp MQS contacts, use pliers 61 4 321 (1) in conjunction with crimping head 61 4 324 (2) from crimping set 61 4 320.

Scheme 50

Note. Pliers (1) open automatically as far as they will go when handles are pressed together.

Open pliers (1).

Scheme 51

Fold up contact carrier (2).

Insert MQS contact (3) in contact carrier (2).

Fold back contact carrier (2).

Note. Follow procedure for cutting and stripping insulation from cables.

Close pliers (1) one notch.

Scheme 52

Insert stripped cable (2).

Close pliers (1) fully.

Open pliers (1).

Scheme 53

Open contact carrier (2) gently and carefully remove MQS contact.

Note. Check contact for correct crimping.

61 13 ... Crimping annular contacts

Crimpacll crimping pliers from repair kit 1 are used to crimp annular contacts.

Scheme 54

Open crimping pliers (1).

Scheme 55

Note. Place contact (2) in designated nest (observe wire cross-section) with particular care. Make sure it is exactly positioned.

Insert annular contact (2) in crimping pliers (1).

Close crimping pliers (1) gently and keep closed.

Note. Follow procedure for cutting and stripping insulation from cables.

Feed stripped cable (1) into annular contact (2) completely. Close crimping pliers (3) fully.

Scheme 56

Open crimping pliers (3) and remove cable (2).

Note. Check contact for correct crimping.

61 13 ... Crimping optical fibres

Special tools required

To crimp optical fibres, use pliers 61 4 321 (1) in conjunction with crimping head 61 4 323 (2) from crimping set 61 4 320.

Scheme 57

Note. Pliers (1) open automatically as far as they will go when handles are pressed together.

Move contact guide by means of stop lever (1) into corresponding position (pin contact or jack).

Scheme 58

Open pliers (2).

Place pin contact or jack (1) in crimping head and secure with locking lever (3).

Scheme 59

Note. Follow procedure for cutting and stripping insulation from optical fibres. Refer to 61 13 ... CUTTING OFF, STRIPPING INSULATION AND CUTTING OPTICAL FIBRES TO LENGTH .

Insert stripped optical fibre (1) as far as it will go into pin contact or jack (2).

Scheme 60

Close pliers (3) fully.

Open pliers (3) and locking lever (4).

Remove optical fibre (1).

Scheme 61

Right (A)

End of optical fibre (1) must be flush with tip of pin contact (2).

Wrong (B)

End of optical fibre (1) is not flush with tip of pin contact (2).

61 13 ... CUTTING OFF, STRIPPING INSULATION AND CUTTING OPTICAL FIBRES TO LENGTH

Special tools required

1. 61 4 320

To cut off, strip insulation and cut optical fibres to length, use pliers 61 4 321 (1) in conjunction with crimping head 61 4 322 (2) from crimping set 61 4 320.

Scheme 62

Note. Pliers (1) open automatically as far as they will go when handles are pressed together.

Cutting Optical Fibre

Open pliers (1).

Place optical fibre (2) in cutting device (3).

Close pliers (1) and remove optical fibre (2).

Scheme 63

Stripping Insulation From Optical Fibre

Open pliers (1).

Open lever (2) in direction of arrow.

Scheme 64

Slide optical fibre (1) into stripping device (2) until flush at point (3).

Close pliers (4) fully.

Close clamping lever (5) in direction of arrow.

Open pliers (4) by one tooth notch.

Open clamping lever (5) against direction of arrow again and remove optical fibre (1).

Scheme 65

Note. A stripping replacement blade set is available under number 61 4 327.

Cutting Optical Fibre To Length

Pull pin (1) in direction of arrow.

Scheme 66

Fold up blade retaining link (2) in direction of arrow.

Remove blade (1) and replace.

Scheme 67

Installation

Make sure blade (1) is correctly seated on locating points (2).

Open pliers (3).

Slide optical fibre (1) into cutting device (2) until insulation of optical fibre (1) butts against clamping device.

Scheme 68

Close pliers (3) fully and keep closed.

Remove optical fibre (1).

61 13 ... Opening plug housings and removing contacts of different plug systems

Abbreviations and what they mean

ABBREVIATIONS

Ultrasonic-Welded Connectors

Ultrasonic-welded connectors (1) can be identified by the welds (2) on their longitudinal side.

Scheme 69

The contacts of these connectors cannot be replaced. Replace plug completely.

Note. Special tools referred to in the repair instructions below are contained in the following special tool kits: Release and press-out tool 61 1 150

Repair instructions for opening plug housings and removing contacts of different plug systems

Plug system D 1.5/D 2.5

1. Circularplugs, 7- S-pin System D 7 S
2. Circular plugs, 13-pin, System D 2.5
3. Circular plugs, 20-pin, System D 2.5
4. Circular plugs, 4-, 7-, 10-, 12-, 25 -pin, System D 1.5/D 2.5
5. In-line plugs, 15-pin, System D 2.5
6. In-line plugs, 8-, 12-pin, System D 2. 5
7. In-line plugs, 30-pin, System D 2.5
8. In-line plugs, 20-pin, System D 2.5

Plug system JPT/MDK/DFK

1. In-line plugs, 2-pin, System JPTELA
2. In-line plugs, 2-pin, System MDK 3 plus 2.8
3. In-line plugs, 4-pin, System DFK ELA

Plug system Elo/Elo-Power

1. In-line plugs, 4-, 10-pin, System Elo
2. In-line plugs, 6- to 50-pin, System Elo
3. In-line plugs, 3-, 6-pin, System Elo-Power 2.8

Plug system MQS/MPQ

1. In-line plugs, 6-, 8-pin, System MQS
2. In-line plugs, 2-pin, System MPQ 2.8
3. Control unit plugs, 25 -,35-, 55-, 83 -, 88-pin
4. In-line plugs, 24-pin, Hybrid System MQS/MPQ
5. Socket housing 42-, 43-pin , Hybrid System MQS /MPQ
6. Socket housings, 2x21-, 2x27-pin, Hybrid System MQS/MPQ, Elo/Elo-Power
7. In-line plugs, 30-pin, Hybrid System MQS/MPQ
8. Socket housings, 5- S-pin System MQS/MPQ
9. Socket housing (radio plug), Hybrid System MQS/MPQ

61 13 ... Plug housing, LCC contact (load current contact)

Special tools required

1. 61 1 200

Socket housing

Press lock (1) with suitable tool (2) in direction of arrow out of socket housing (3).

Scheme 70

Pull lock (1) out of socket housing (2).

Scheme 71

Insert special tool 61 1 200 into socket housing (1) and pull out lead with LCC contact (2) in direction of arrow.

Scheme 72

Pin housing

Unlock locking slide (1) of pin housing (2) with suitable tool (3) in direction of arrow.

Scheme 73

Insert special tool 61 1 200 into pin housing (1) and pull out lead with LCC contact (2) in direction of arrow.

Scheme 74

61 13 ... Relay carrier

Place special tool 61 1 153 on relay carrier (1) and carefully pull in direction of arrow until retaining lugs (2) on relay carrier are raised.

Scheme 75

Pull relay carrier (2) in direction of arrow into first catch (3).

Scheme 76

Press down arrester hook (4) of appropriate contact and pull out cable with contact.

Scheme 77

Press out double flat spring contact with special tool 61 1 136 or 61 1 137 (ejector).

61 13 ... Repairing ribbon cables

Special tools required

1. 61 1 190

Place ribbon cables (1) in connector housing (2) and close cover (3).

Scheme 78

Place connector housing (1) in pliers (2) 611190. Close pliers (2).

Scheme 79

61 13 ... Retaining bracket

Pull relevant fuse out of fuse block (1).

Note. Mark positions when removing fuses.

Pull locking slide (2) out of fuse block (1) as far as it will go.

Scheme 80

With special tool 61 1 136 or 61 1 137 (ejector), press back arrester hook (3) of appropriate contact and pull out cable.

Scheme 81

61 13 ... Socket housing (radio plug), Hybrid System MQS/MPQ

Manufactured by AMP: The following contact types without strand sealing can be fitted in the plug housings

1. MQS (Micro Quadlock System)
2. MPQ, width 2.8 mm (Micro Power Quadlock)
3. MPQ, width 5.2 mm (Micro Power Quadlock)

Removing MPQ Contacts From Radio Plug

Press lock (1) in direction of arrow.

Scheme 82

Detach secondary lock (2) from radio plug.

Feed special tool 61 1 135 past side of contact.

Scheme 83

Press special tool 61 1 135 in direction of arrow.

Pull wire (1) with socket contact out of radio plug (2).

Removing MQS Contacts From Contact Carrier

Press lock (1) in direction of arrow and pull housing (2) out of radio plug.

Scheme 84

Press lock (1) in direction of arrow. Pull contact carrier (2) out of housing (3).

Note. When the contact carrier is pulled out, the secondary locks of the socket contacts are raised.

Scheme 85

Hold down retaining hook (1) of socket contact in opening of contact carrier with a small screwdriver.

Scheme 86

Pull wire with socket contact in direction of arrow as far as secondary lock (2).

Note. The illustration shows an 8 -pin socket housing where removal of the contacts is identical.

Hold down arrester hook in secondary lock (1) again. Pull wire with socket contact (2) out of contact carrier (3).

Scheme 87

Removing MPQ Contacts From Contact Carrier

Remove contact carrier (1) with MQS contacts from radio plug.

Scheme 88

Raise lock (2) on radio plug.

Pull contact carrier (3) out of radio plug.

Press lock (1) in direction of arrow.

Scheme 89

Pull secondary lock (2) in direction of arrow completely out of contact carrier (3).

Press special tool 61 1 135 on inside of contact into contact carrier (2).

Scheme 90

Pull wire with socket contact (1) out of contact carrier (2).

12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY

Observe safety instructions for handling vehicle battery. Refer to 61 00 ... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY .

Before disconnecting battery

Switch off ignition.

Note. If the ignition is not turned off when the battery is disconnected, fault memories may be set in some control units.

General notes on disconnecting battery

1. Do not disconnect battery leads and leads from alternator and starter motor while engine is running.
2. Cars with IBS on battery negative terminal
3. Do not under any circumstances pull/lever off pole shoes by force.
4. Do not under any circumstances release socket-head cap screw of IBS.
5. Detach terminal of battery negative lead from car battery and second battery if fitted. Refer to «61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__61-20-900-disconnecting-and-connecting) . Cover battery negative terminal(s) and secure.
6. When work is carried out on the electrical system, faults may be caused in the fault memories of some control units when the battery is connected.
7. When fitting terminal for battery negative lead: tightening torque, 61 21 1AZ. Refer to «GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-tightening-torques) .

After connecting battery

Likewise, individual settings are lost and must be activated.

Example

1. Activate sliding sunroof, refer to «54 0 ... NOTES ON PANORAMA GLASS ROOF (INITIALIZATION/NORMALIZATION/LEARNING OF CHARACTERISTIC CURVE)»(/bmw/x3/e83-2003-2006/remont/sun-rooft-topconvertible-top/#slidetilt-roof-repair-instructions__54-0-notes-on-panorama)
2. Vehicles with AFS only: Activate steering angle
3. If necessary, activate power windows
4. If necessary, activate mirror with compass

Vehicles with a two-battery system

Starter and equipment batteries

A two-battery system has a starter battery circuit and an equipment battery circuit. A secondary control unit monitors both battery circuits. Depending on the situation, the battery circuits are connected to or isolated from the secondary control unit via an isolating relay.

Two AGM batteries are used as a storage battery; the design and features of these batteries are described in BMW Technology (SBT) 610102 (005).

Receiving/giving starting assistance via jump start terminal

The engine can be jump-started with an external voltage supply via the jump start terminal on the right side of the engine compartment.

Note. The starter battery is isolated from the alternators when the engine hood/bonnet is open.

Giving starting assistance via the jump start terminal is thus limited by the capacity of the starter battery when the engine hood/bonnet is open.

Charging starter and equipment batteries via jump start terminal

The starter battery is charged as a matter of priority with a charger connected to the jump start terminal. The voltage at the starter battery is the decisive factor in determining whether the equipment battery is also included in the charging operation. The secondary control unit automatically detects a charging operation at a charging voltage at the starter battery of = ace;13.5 V. The isolating relay is closed and thus the equipment battery is connected in parallel. Both batteries are now charged.

Prerequisite

1. Terminal 61 inactive
2. Terminal 15 inactive

If terminal 15 becomes "active" during the charging operation, the isolating relay is opened immediately and again only the starter battery is charged.

Note. When the engine hood is open, the isolating relay is also opened in normal operation when the engine is running. A special mode can be set by means of diagnosis for workshop/garage operation. The isolating relay is closed from terminal R in this operating mode. This mode is automatically reset once a distance of 5 km has been driven.

Trickle charging

Increased closed-circuit current consumption can be compensated with the aid of the battery trickle charger (special tool 61 2 410) via the jump start terminal.

For procedure, refer to 12 00 ... INSTRUCTIONS ON STARTING AID .

For procedure, refer to 61 00 ... BATTERY .

61 00 ... BATTERY CHARGING

If a normal or quick charger is used to charge the battery, the battery must be disconnected from the vehicle electrical system and removed. This prevents damage to paintwork and upholstery.

Ideally, battery charging is performed with BMW-approved charging computers.

If necessary, open existing plugs on the individual cells.

For procedure, refer to 61 00 ... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY .

61 20 ... Threshold values for battery inspection of all battery (telephone except for telephone battery)

Safety instructions for handling vehicle battery. Refer to 61 00 ... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY .

TEST STEP 1 - BEFORE CHARGING BATTERY

TEST STEP 2 - AFTER CHARGING BATTERY

Note. If battery was checked on the positive terminal in the engine compartment, repeat check directly on battery for sake of safety.

61 20 ... BATTERY OPEN-CIRCUIT CURRENT TEST

Note. Observe safety instructions for handling vehicle battery. Refer to 61 00 ... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY . Observe Service Information Adapter for open-circuit current measurement.

Scheme 91

The open-circuit current test is performed using the Diagnosis and Information System (DIS)

61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD

Necessary preliminary tasks

1. Remove luggage compartment floor trim panel with fitted mat, refer to «51 47 102 REMOVING AND INSTALLING/REPLACING LUGGAGE COMPARTMENT FLOOR TRIM PANEL»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-47-102-removing-and-installingreplacing)

Disconnect battery negative lead (1).

Scheme 92

tightening torque, 61 21 1AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

For procedure, refer to 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD .

61 21 010 Removing and installing battery

Necessary preliminary tasks

1. Remove luggage compartment floor trim, refer to «51 47 102 REMOVING AND INSTALLING/REPLACING LUGGAGE COMPARTMENT FLOOR TRIM PANEL»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-47-102-removing-and-installingreplacing)

Unfasten plug connection (2) and disconnect.

Scheme 93

Disconnect battery negative lead (1). Refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Open positive terminal cover (3).

Release nut (1) of safety battery terminal (2), tightening torque, 61 21 1AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Scheme 94

Detach safety battery terminal (2) towards top, lay to one side and secure.

Release threaded pin (1).

Scheme 95

Fold upper holder (3) up.

Take off holder (2).

Detach vent (6) in direction of arrow.

Fold both clips (4) open.

Lift out battery (5).

Installation

Make sure battery (5) is correctly seated in associated mounts.

61 31 005 REMOVING AND INSTALLING/REPLACING FIXTURE FOR STEERING COLUMN STALK

Necessary preliminary tasks

1. Remove steering wheel, refer to «STEERING WHEEL»(/bmw/x3/e83-2003-2006/remont/steering-column/#steering-column__steering-wheel)
2. Remove lower section of steering column trim, refer to «LOWER SECTION OF STEERING COLUMN COVER»(/bmw/x3/e83-2003-2006/remont/steering-column/#steering-column)
3. Remove top section of steering column casing, refer to «UPPER SECTION OF STEERING COLUMN COVER»(/bmw/x3/e83-2003-2006/remont/steering-column/#steering-column)

Unlock and disconnect plug connections (1) on turn indicator/headlight dipping stalk and on windscreen wiper stalk.

Scheme 96

Unlock and disconnect plug connections (1) on fixture for steering column stalk.

Scheme 97

If necessary, unlock and disconnect plug connection (2) on steering column adjustment stalk.

Release screws (1).

Scheme 98

Remove fixture for steering column stalk (2).

Scheme 99

Unlock clips and pull out stalk for windscreen wipers (1).

Scheme 100

Note. If necessary, remove steering column adjustment stalk (2).

Raise lock in direction of arrow and pull out stalk for steering column adjustment (2) in direction of arrow.

Unlock clips and pull out turn indicator/dimmer stalk (3) towards top.

61 31 016 Removing and installing/replacing turn indicator/headlight dipping switch

Necessary preliminary tasks

1. Remove fixture for steering column stalk, refer to «61 31 005 REMOVING AND INSTALLING/REPLACING FIXTURE FOR STEERING COLUMN STALK»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__61-31-005-removing-and-installingreplacing)
2. E85 only: Remove cruise control switch

Press locks (1) and feed direction indicator/dipping stalk (2) in direction of arrow out of fixture for steering column stalk (3).

Scheme 101

61 31 020 Removing and installing/replacing ignition starter switch

Necessary preliminary tasks

1. Disconnect battery negative lead, refer to «12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__12-00-instructions-for-disconnecting) .
2. Remove lower section of steering column trim, refer to «LOWER SECTION OF STEERING COLUMN COVER»(/bmw/x3/e83-2003-2006/remont/steering-column/#steering-column)

Remove sealing varnish and release headless setscrews (1).

Scheme 102

Detach ignition starter switch (2) in direction of arrow.

Installation

Secure headless setscrews (1) with sealing varnish.

Open lock (3) in direction of arrow and disconnect plug (4) from ignition starter switch (2).

61 31 037 Removing and installing/replacing light control unit

Special tools required

1. 00 9 341

Necessary preliminary tasks

1. Remove left fresh-air grill, refer to «64 22 135 REMOVING AND INSTALLING/REPLACING LEFT FRESH-AIR GRILL»(/bmw/x3/e83-2003-2006/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-22-135-removing-and-installingreplacing)

Fit special tool 00 9 341 at side as illustrated.

Scheme 103

Lever out lighting control unit (1) all round.

Unlock and disconnect associated plug connection, remove lighting control unit (1) in direction of arrow.

Replacement

If necessary, remove felt strip (1) from instrument panel (2).

Scheme 104

Installation

Make sure lighting control unit is correctly seated in instrument panel (2).

61 31 040 Removing and installing/replacing switch for windshield wipers

Necessary preliminary tasks

1. Remove fixture for steering column stalk, refer to «61 31 005 REMOVING AND INSTALLING/REPLACING FIXTURE FOR STEERING COLUMN STALK»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__61-31-005-removing-and-installingreplacing)

Press locks (1) and windshield wiper stalk (2) in direction of arrow out of fixture for steering column stalk (3).

Scheme 105

61 31 057 Removing and installing/replacing switch unit in center console

Necessary preliminary tasks

1. Remove operator unit for heater/air conditioner, refer to «64 11 377 REMOVING AND INSTALLING CONTROL PANEL FOR HEATER - A/C SYSTEM (REPLACING, AUTOMATIC AIR CONDITIONING)»(/bmw/x3/e83-2003-2006/remont/automatic-hvac-system/#heating-and-air-conditioning-repair)

Press out switch unit in storage tray (1) in direction of arrow.

Scheme 106

Unlock and disconnect associated plug connection (2), remove switch unit in storage tray (1).

61 31 069 Removing and installing/replacing indicator for front passenger AIRBAG deactivation

Necessary preliminary tasks

1. Remove front roofliner trim, refer to «51 44 ... REMOVING AND INSTALLING FRONT ROOFLINER TRIM»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-44-removing-and-installing)

Press locks (1) and unclip indicator for front passenger AIRBAG deactivation (2) in direction of arrow from front roofliner trim (3).

Scheme 107

61 31 079 Removing and installing/replacing switch for hazard warning flashers/central locking

Special tools required

1. 64 1 020

Lever out switch for hazard warning system/central locking (1) with special tool 64 1 020 and pull back.

Disconnect associated plug connection and remove switch for hazard warning system/central locking (1).

Scheme 108

61 31 115 REPLACING ROCKER SWITCH FOR SIDE WINDOW OPERATION (FRONT)

Special tools required

1. 00 9 341

Carefully lever out rocker switch for side window operation (1) with special tool 00 9 341 at specified points.

Scheme 109

Feed rocker switch for side window operation (1) out of front door trim panel (2).

Disconnect associated plug connection and remove rocker switch for side window operation (1).

Installation

Retaining hooks (1) of rocker switch for side window operation (2) must not be damaged.

Scheme 110

Make sure rocker switch for side window operation (2) is correctly seated.

61 31 116 Replacing rocker switch for side window operation (rear)

Special tools required

1. 00 9 317

To avoid damaging leather armrests, wrap front end of special tool 00 9 317 in fabric adhesive tape.

Procedure

1. Slide special tool 00 9 317 under rocker switch for side window operation (1) (do not lift the switch in the process).
2. Slide rocker switch (1) with special tool 00 9 317 towards rear and lever out.

Feed rocker switch (1) out of rear door trim panel (2) and disconnect plug connection.

Scheme 111

Installation

Retaining hooks (1) of rocker switch for side window operation (2) must not be damaged.

Scheme 112

Make sure rocker switch for side window operation (2) is correctly seated.

61 31 175 Removing and installing/replacing switch for slide/tilt sunroof

Necessary preliminary tasks

1. Remove front roofliner trim, refer to «51 44 ... REMOVING AND INSTALLING FRONT ROOFLINER TRIM»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-44-removing-and-installing)

Press catches (1) and unclip switch for slide/tilt sunroof (2) in direction of arrow from front roofliner trim (3).

Scheme 113

Installation

1. Initialize slide/tilt sunroof. Refer to «54 0 ... NOTES ON PANORAMA GLASS ROOF (INITIALIZATION/NORMALIZATION/LEARNING OF CHARACTERISTIC CURVE)»(/bmw/x3/e83-2003-2006/remont/sun-rooft-topconvertible-top/#slidetilt-roof-repair-instructions__54-0-notes-on-panorama) .

61 31 176 Removing and installing/replacing emergency call button

Necessary preliminary tasks

1. Remove front roofliner trim, refer to «51 44 ... REMOVING AND INSTALLING FRONT ROOFLINER TRIM»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-44-removing-and-installing)

Press catches (1) and unclip emergency call button (2) in direction of arrow from front roofliner trim (3).

Scheme 114

61 31 204 Replacing switch combination for seat adjustment

This operation is described in

"Removing outer cover on front seat". Refer to 52 14 040 REMOVING AND INSTALLING/REPLACING Outer cover on front left or right seat (normal/electric) or 52 16 040 REMOVING AND INSTALLING/REPLACING OUTER COVER ON FRONT LEFT OR RIGHT SEAT (SPORTS/ELECTRIC) .

All models except Convertible

Carry out programming/coding. Refer to DIAGNOSIS PROGRAMMING/CODING .

61 31 208 Removing and installing/replacing switch for front lumbar support

This operation is described in

"Removing outer cover on front seat". Refer to 52 13 040 REMOVING AND INSTALLING / REPLACING OUTER COVER ON LEFT OR RIGHT FRONT SEAT BACK-REST (NORMAL / MANUAL) or 52 16 040 REMOVING AND INSTALLING/REPLACING OUTER COVER ON FRONT LEFT OR RIGHT SEAT (SPORTS/ELECTRIC) .

61 31 225 Replacing switch on impact cushion for left and right herbages

Necessary preliminary tasks

1. Remove AIRBAG unit, refer to «STEERING WHEEL»(/bmw/x3/e83-2003-2006/remont/airbag/#air-bag-restraint-systems)

Disconnect plug connections (1).

Scheme 115

Loosen screws (2).

Feed out switch on impact cushion for AIRBAG (3) in each case in direction of arrow from AIRBAG unit (4) and remove.

61 31 228 Replacing switch on sports steering wheel

Necessary preliminary tasks

1. Remove sports steering wheel, refer to «REMOVAL & INSTALLATION (SPORTS STEERING WHEEL)»(/bmw/x3/e83-2003-2006/remont/steering-column/#steering-column__removal-installation-sports-steering-wheel)

Release screws (1) on sports steering wheel (2).

Scheme 116

Unclip complete trim (1) in direction of arrow from mountings (2) and remove from sports steering wheel (3).

Scheme 117

Loosen screws (2).

Remove both switches on sports steering wheel (1) together from trim (5).

Scheme 118

Installation

Make sure wiring harness (4) is correctly laid in associated mountings (3).

61 31 241 Removing and installing/replacing engine hood contact switch

Unfasten plug connection (1) and disconnect.

Press catches (2) together and feed hood contact switch (4) in direction of arrow out of fixture (3).

Scheme 119

61 31 255 Replacing switch for outside mirror

This operation is described in

"Replacing rocker switch for side window operation". Refer to 61 31 115 REPLACING ROCKER SWITCH FOR SIDE WINDOW OPERATION (FRONT) .

61 31 270 Removing and installing/replacing switch for reversing light

Unfasten plug connection (1) and disconnect.

Scheme 120

Unfasten switch for reversing light (2), tightening torque, 18 Nm.

61 31 299 Removing and installing/replacing clutch switch module

Necessary preliminary tasks

1. Remove trim panel for pedal assembly. Refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-45-185-removing-and-installingreplacing) .

Note. Clutch master cylinder (2) is removed for purposes of clarity.

Lever out clutch switch module (1) from clutch master cylinder (2) with screwdriver.

Scheme 121

Unlock plug (4) and disconnect from housing (3).

Installation

Clutch switch module is protected against incorrect installation.

Clutch switch module must snap audibly into place.

Scheme 122

61 31 310 Replacing brake light switch

Necessary preliminary tasks

1. Remove trim panel for pedal assembly. Refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-45-185-removing-and-installingreplacing) .

Unfasten plug connection (1) and disconnect.

Scheme 123

Pull brake light switch (2) in direction of arrow out of brake light switch holder (4).

Installation

1. Press brake pedal (3) to floor.
2. Slide brake light switch (2) as far as it will go into brake light switch holder (4).
3. Grip brake light switch holder (4), slowly return brake pedal (3) to starting position and pull back to stop.

Note. Removing brake light switch holder (4): Press brake pedal (3). Press catches together and unclip brake light switch holder (4) from brake pedal (3).

61 31 382 Replacing level switch for coolant

Release screws (1).

Scheme 124

Unlock plug connection for coolant level switch (4) and disconnect.

Pull coolant expansion tank (2) in direction of arrow out of grommet (3) underneath.

Installation

Make sure coolant expansion tank (2) is correctly seated in grommet (3).

If necessary, replace grommet (3).

Reposition coolant expansion tank (2) as far as possible until coolant level switch (4) forms the highest point. This will prevent coolant from escaping on opening.

If necessary, catch escaping coolant and feed back in later.

Note. For purposes of clarity, illustration shows coolant expansion tank (2) removed.

Turn coolant level switch (1) in direction of arrow, pull upwards out of coolant expansion tank (2) and remove.

Scheme 125

61 31 440 Removing and installing/replacing temperature switch for heated windshield spray jets

Necessary preliminary tasks

1. E52: Detach front right wheel arch cover (front section)
2. E83: Remove front underbody protection, refer to «51 47 490 REMOVING AND INSTALLING/REPLACING FRONT UNDERBODY PROTECTION»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-47-490-removing-and-installingreplacing)

If necessary, unlock associated plug connection and disconnect.

Scheme 126

Unclip temperature switch for heated windshield spray jets (1) in direction of arrow and remove.

61 31 492 Replacing level switch for windscreen washer system

This operation is described in

"Replacing fluid reservoir for windscreen washer system". Refer to 61 71 061 REPLACING FLUID RESERVOIR FOR WINDSHIELD WASHER SYSTEM .

61 33 040 Removing and installing/replacing a fanfare horn

Necessary preliminary tasks

1. Remove front underbody protection, refer to «51 47 490 REMOVING AND INSTALLING/REPLACING FRONT UNDERBODY PROTECTION»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-47-490-removing-and-installingreplacing)

Unfasten plug connection (1) and disconnect.

Scheme 127

Release nut (2) and remove fanfare horn (3).

61 35... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE)

Special tools required

1. 12 7 060

Note. Electrical components which are particularly sensitive to electrostatic discharge (electronic control units, sensors, etc.) are marked with the ESD warning symbol.

E -Electro

S -Static

D -Discharge

For further information on this subject, please refer to Service Information SWZ 2 06 04 (128).

Statically charged persons can discharge by touching electrical components.

Scheme 128

Note. Humans can only detect a discharge starting from a level of approx. 3000 V.

The danger threshold for electrical components already starts from a level of approx. 100 V.

Scheme 129

1. When replacing electrical components, leave the replacement components in their original packaging until immediately before they are to be installed
2. If necessary, always return a removed component in its original packaging (always pack the component away immediately)
3. Read and comply with user information on using the associated ESD special tool 12 7 060

61 35 000 Removing and installing/replacing module (for trailer two hitch)

Necessary preliminary tasks

1. Remove luggage compartment floor trim panel. Refer to «51 47 102 REMOVING AND INSTALLING/REPLACING LUGGAGE COMPARTMENT FLOOR TRIM PANEL»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-47-102-removing-and-installingreplacing) .

Remove clips (1) and fold up front luggage compartment floor trim panel (2) slightly.

Scheme 130

Installation

Make sure front luggage compartment floor trim panel (2) is correctly seated.

Note. Front luggage compartment floor trim panel shown removed for purposes of clarity.

Unfasten plug connection (1) and disconnect.

Scheme 131

Unscrew nuts (2).

Remove module (3) in direction of arrow.

61 35 122 Removing and installing/replacing general module

Necessary preliminary tasks

1. Remove luggage compartment floor trim, refer to «51 47 102 REMOVING AND INSTALLING/REPLACING LUGGAGE COMPARTMENT FLOOR TRIM PANEL»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-47-102-removing-and-installingreplacing)
2. Disconnect battery negative lead, refer to «12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__12-00-instructions-for-disconnecting)
3. Remove right glovebox with housing, refer to «51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-16-366-removing-and-installing)

Release plastic nut (1).

Scheme 132

Unclip device holder (2) from fixtures (3).

Unlock plug connections (4) and disconnect.

Press catch (6) and remove general module (5) towards rear.

Replacement

Carry out programming/coding. Refer to DIAGNOSIS PROGRAMMING/CODING .

61 35 177 Removing and installing (replacing) rain/light sensor

Expand two-part mirror base cover (1) by pressing from below and detach.

Scheme 133

Feed out two-part mirror base cover (1) and remove.

Disconnect plug connection (3).

Scheme 134

Press locks (1) in direction of arrow and remove rain/light sensor (2) towards bottom.

Installation

Do not damage optical element covered by rain/light sensor (2).

If necessary, initialize rain/light sensor. Refer to 61 35 679 INITIALIZING RAIN/LIGHT SENSOR .

Replacement

Carry out programming/coding. Refer to DIAGNOSIS PROGRAMMING/CODING .

61 35 285 Removing and installing (replacing) light module

Necessary preliminary tasks

1. Remove trim panel for pedal assembly. Refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-45-185-removing-and-installingreplacing) .

Unlock plug connections (2) and (4) and disconnect.

Scheme 135

Release screws (1), feed out light module (3) in direction of arrow and remove.

Installation

Make sure guides (1) of light module (2) are correctly seated in associated mountings.

Scheme 136

Replacement

Carry out programming/coding. Refer to DIAGNOSIS PROGRAMMING/CODING .

61 35 679 INITIALIZING RAIN/LIGHT SENSOR

Note. Initialization is necessary: After replacing windshield When installing a used rain/light sensor

Note. Connect BMW diagnosis system Initialize rain/light sensor

61 35 714 Removing and installing/replacing control unit for slide/tilt sunroof

Necessary preliminary tasks

1. Remove front roofliner trim, refer to «51 44 ... REMOVING AND INSTALLING FRONT ROOFLINER TRIM»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-44-removing-and-installing)
2. Remove complete ceiling light (front), refer to «63 31 000 REMOVING AND INSTALLING/REPLACING CEILING LIGHT (FRONT)»(/bmw/x3/e83-2003-2006/remont/exterior-lights/#lights-repair-instructions__63-31-000-removing-and-installingreplacing)

Note. Secure drive for slide/tilt sunroof (3) against falling out.

Release screws (2).

Scheme 137

Lower control unit for slide/tilt sunroof (3).

Unlock and disconnect plug connections (1) and remove control unit for slide/tilt sunroof (3).

Installation

1. Initialize slide/tilt sunroof. Refer to «54 0 ... NOTES ON PANORAMA GLASS ROOF (INITIALIZATION/NORMALIZATION/LEARNING OF CHARACTERISTIC CURVE)»(/bmw/x3/e83-2003-2006/remont/sun-rooft-topconvertible-top/#slidetilt-roof-repair-instructions__54-0-notes-on-panorama) .

Replacement

Carry out programming/coding. Refer to DIAGNOSIS PROGRAMMING/CODING .

61 35 795 Removing and installing (replacing) control unit for adaptive headlight

Necessary preliminary tasks

1. Remove trim for instrument panel, bottom left

Unlock catch (1) in direction of arrow.

Scheme 138

Pull control unit for adaptive headlight (2) out of equipment carrier (3) slightly.

Unfasten plug connection (4) and disconnect.

Remove control unit for adaptive headlight (2).

Replacement

Carry out programming/coding. Refer to DIAGNOSIS PROGRAMMING/CODING .

61 35 900 Removing and installing/replacing ring antenna of electronic immobilizer

Special tools required

1. 61 3 300

Necessary preliminary tasks

1. Remove top section of steering column casing, refer to «UPPER SECTION OF STEERING COLUMN COVER»(/bmw/x3/e83-2003-2006/remont/steering-column/#steering-column)

Disconnect plug connection (1).

Scheme 139

Position special tool 61 3 300 as illustrated with flattened side (A) to ring antenna of electronic immobilizer (2).

Lever out ring antenna of electronic immobilizer (2) in direction of arrow and remove.

61 35 910 Removing and installing/replacing control unit of electronic immobilizer

Necessary preliminary tasks

1. Disconnect battery negative lead, refer to «12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__12-00-instructions-for-disconnecting)
2. Remove trim panel for pedal assembly, refer to «51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-45-185-removing-and-installingreplacing) .

Unfasten plug connection (1) and disconnect.

Note. Secure control unit of electronic immobilizer (3) against falling out.

Release screws (2) and remove control unit of electronic immobilizer (3).

Scheme 140

Replacement

Carry out programming/coding. Refer to DIAGNOSIS PROGRAMMING/CODING .

Scheme 141

DIAGNOSIS PROGRAMMING/CODING

Using the current TIS CD

1. Document type: Select SI Diagnosis Coding.
2. Index number 11: Select Programming Information to display the table of contents.
3. Select the current IDC for the appropriate vehicle.

Place special tool 61 1 153 on relay carrier (1) and carefully pull in direction of arrow until retaining lugs (2) on relay carrier are raised.

Scheme 142

Pull relay carrier (2) in direction of arrow into first catch (3).

Scheme 143

Press down arrester hook (4) of appropriate contact and pull out cable with contact.

Scheme 144

Press out double flat spring contact with special tool 61 1 136 or 61 1 137 (ejector).

61 61 041 Replacing both windscreen wiper blades

Move wipers into fold -back position

1. Switch on terminal "R".
2. Actuate wiper control lever and bring wiper arms to a stop in vertical position (fold -back position) by switching off terminal "R".
3. Remove ignition key from ignition switch.

Fold back wiper arm (3).

Scheme 145

Press locking spring (1) in direction of arrow. Pull wiper blade (2) to wiper arm (3) and feed out.

Installation

Install new wiper blade and snap into place.

Fold wiper arms to windscreen.

Switch on terminal "R".

Set wiper system to rest position by flick-wiping.

61 61 100 Removing and installing/replacing both windscreen wiper arms

Special tools required

1. 61 6 060

Take off cap.

Scheme 146

Unfasten nut.

Installation

Observe tightening torque, 61 61 10AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Scheme 147

Detach windscreen wiper arm with special tool 61 6 060.

Scheme 148

Installation

Check that sleeve (1) is firmly seated.

Scheme 149

If sleeve (1) is loose, it must be replaced.

A sleeve (1) firmly seated in the windscreen wiper arm can be reused.

Windscreen wiper arm with firmly seated sleeve (1)

Return wiper system to rest position. Push wiper arm (2) with firmly seated sleeve (1) onto shaft and tighten down.

Observe tightening torque, 61 61 10AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Check setting of wiper arm (2).

To correct setting, replace sleeve (1).

Scheme 150

Windscreen wiper arm with new sleeve (2)

Return wiper system to rest position.

Push wiper arm (1) with sleeve (2) onto shaft and tighten until hand-tight.

Scheme 151

Adjust position of wiper arm in question in rest position (measured between wiper lip and top edge of cowl panel cover).

Then tighten down wiper arm and check position of relevant wiper arm again.

Scheme 152

1. 66 +/- 1.5 mm
2. 61 +/- 1.5 mm

Observe tightening torque, 61 61 10AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

61 61 270 Removing and installing complete wiper console

Necessary preliminary tasks

1. Remove cowl panel cover. Refer to «51 13 115 REMOVING AND INSTALLING/REPLACING COWL PANEL COVER»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-13-115-removing-and-installingreplacing) .
2. Remove heater bulkhead. Refer to «51 71 080 REMOVING AND INSTALLING/REPLACING HEATER BULKHEAD»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-71-080-removing-and-installingreplacing) .

Unfasten plug connection (1) and disconnect.

Scheme 153

Unscrew bolt (2).

Installation

tightening torque, 61 61 6AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Installation

Fit rubber grommet (1) of wiper console on pin (2).

Scheme 154

Release nuts and feed out complete wiper console through opening in heater bulkhead.

Scheme 155

Installation

tightening torque, 61 61 5AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

61 62 030 REPLACING WIPER ARM FOR REAR WINDOW WIPER

Pull internal locks (2) in direction of arrow and remove cover cap (1) as illustrated.

Scheme 156

Installation

Locks (1) and (2) of cover cap (3) must not be damaged.

Scheme 157

Set wiper arm (1) upwards.

Scheme 158

Release nut (2) and remove wiper arm (1) in direction of arrow.

Installation

tightening torque, 61 62 5AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Installation

Rear window wiper motor must be in wiper rest position.

Adjust measurement (A) between wiper blade (1) and rear window edge (2).

Measurement (A): 29 mm.

Scheme 159

61 62 060 Removing and installing/replacing rear window wiper motor

Necessary preliminary tasks

1. Remove wiper arm for rear window. Refer to «61 62 030 REPLACING WIPER ARM FOR REAR WINDOW WIPER»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__61-62-030-replacing-wiper-arm) .
2. Remove panel for rear lid.

Unfasten plug connections (1) and disconnect.

Scheme 160

Note. Secure rear window wiper motor (3) against falling out.

Release screws (2).

Installation

tightening torque, 61 62 8AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Remove rear window wiper motor (3) in direction of arrow.

Installation

Replace grommet (4) if necessary.

61 62 100 Adjusting jet nozzle for rear window washer unit

Note. The spray must meet the contact point (1).

Scheme 161

Adjustment measurements

ADJUSTMENT MEASUREMENTS

Mark contact point with crepe tape. Adjust jet nozzle with offset screwdriver (3.5 mm) in slot.

Scheme 162

61 62 110 Removing and installing/replacing spray nozzle for rear window wiper

Special tools required

1. 00 9 317

Lever spray nozzle for rear window wiper (1) with special tool 00 9 317 out of spray nozzle holder (2).

Scheme 163

Installation

Make sure turning lock (2) of spray nozzle for rear window wiper (1) is correctly seated in spray nozzle holder.

Adjust spray nozzle.

Scheme 164

61 62 150 REMOVING AND INSTALLING/REPLACING WINDOW WASHER PUMP FOR REAR WINDOW WASHER SYSTEM

Note. Drain washer fluid reservoir.

Unfasten plug connection (1) and disconnect.

Scheme 165

Detach hose (2) in direction of arrow from windshield washer pump (3).

If necessary, turn window washer pump (3) and pull in direction of arrow out of washer fluid reservoir (4).

Installation

Replace sealing ring of window washer pump.

Coat sealing ring of window washer pump with antiseize agent.

Ensure hose is laid without kinks.

Fill washer fluid reservoir.

61 62 170 Removing and installing/replacing non-return valve for rear window washer system

Necessary preliminary tasks

1. Remove rear spoiler. Refer to «51 71 412 REMOVING AND INSTALLING REAR SPOILER»(/bmw/x3/e83-2003-2006/remont/door-locks-anti-theft-systems/#body-equipment-repair-instructions__51-71-412-removing-and-installing) .

Detach hose (1) in direction of arrow from non -return valve (2).

Scheme 166

Pull non-return valve (2) out of spray nozzle holder (3) and remove.

Installation

Make sure hose (1) and non-return valve (2) are correctly seated.

61 67 010 REMOVING AND INSTALLING/REPLACING WASHER PUMP OF HEADLIGHT CLEANING SYSTEM

Note. Drain washer fluid tank.

Unfasten plug connection (1) and disconnect.

Scheme 167

Press lock (2) and detach hose (3) from washer pump of headlight cleaning system (4).

Pull washer pump of headlight cleaning system (4) in direction of arrow out of washer fluid reservoir (5).

Installation

Replace sealing ring/strainer of washer pump.

Coat sealing ring of washer pump with antiseize agent.

Ensure hose is laid without kinks.

Fill washer fluid reservoir.

61 67 045 Removing and installing/replacing spray nozzles for left or right headlight cleaning system

Necessary preliminary tasks

1. Remove front bumper trim.

Press lock (1) and detach hose connection (2).

Scheme 168

Pull out retainer (3) in direction of arrow.

Remove spray nozzle for headlight cleaning system (4) towards front.

Replacement

Unclip spray nozzle (2) from trim (3).

Scheme 169

Installation

If necessary, replace backing (1).

Guides (5) of backing (1) must be located in openings of spray nozzle (2).

Catches (4) of trim (3) must not be damaged or missing.

Note. Drain washer fluid reservoir.

Unfasten plug connection (1) and disconnect.

Scheme 170

Detach hose (2) in direction of arrow from windshield washer pump (3).

If necessary, turn window washer pump (3) and pull in direction of arrow out of washer fluid reservoir (4).

Installation

Replace sealing ring of window washer pump.

Coat sealing ring of window washer pump with antiseize agent.

Ensure hose is laid without kinks.

Fill washer fluid reservoir.

61 71 015 Removing and installing/replacing a jet nozzle in windshield washer system

Note. The jet nozzles of the windshield washer system are preset at the factory and cannot be readjusted.

Lever out sealing plug (1) in direction of arrow.

Scheme 171

Unclip, unlock and disconnect plug connection (2) behind.

Installation

Make sure plug connection (2) is correctly seated in mounting (3).

Ensure correct installation position (mounting (3) at top) and correct seating of sealing plug (1).

Detach connector (1) in direction of arrow from nozzle of windshield washer system (2).

Scheme 172

Unlock spray nozzle (2), press out through opening and remove.

Installation

Make sure nozzle of windshield washer system (2) is correctly seated.

Ensure hose is laid without kinks.

61 71 061 REPLACING FLUID RESERVOIR FOR WINDSHIELD WASHER SYSTEM

Note. Drain fluid tank for windshield washer system.

Necessary preliminary tasks

1. Pull out windshield washer pump (unlock and disconnect plug connection). Refer to «61 71 100 REMOVING AND INSTALLING/REPLACING WINDSHIELD WASHER PUMP»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__61-71-100-removing-and-installingreplacing) .
2. Pull out window washer pump for rear window cleaning system (unlock and disconnect plug connection). Refer to «61 62 150 REMOVING AND INSTALLING/REPLACING WINDOW WASHER PUMP FOR REAR WINDOW WASHER SYSTEM»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__61-62-150-removing-and-installingreplacing) .
3. If necessary, pull out washer pump of headlight cleaning system (unlock and disconnect plug connection). Refer to «61 67 010 REMOVING AND INSTALLING/REPLACING WASHER PUMP OF HEADLIGHT CLEANING SYSTEM»(/bmw/x3/e83-2003-2006/remont/horns/#general-electrical-system-repair-instructions__61-67-010-removing-and-installingreplacing) .

Unscrew bolt (1).

Scheme 173

Unlock and disconnect level switch plug connection on windshield washer system (2).

If necessary, unclip hose (3).

Remove fluid reservoir for windshield washer system (4) in direction of arrow.

Installation

Feed guide (1) of fluid reservoir for windshield washer system (2) in direction of arrow into mountings (3).

Scheme 174

Turn level switch for windshield washer system (1) in direction of arrow, remove downwards from water reservoir for windshield washer system (2) and place to one side.

Scheme 175

Remove cover and strainer from water reservoir for windshield washer system.

Installation

Replace sealing rings/strainers on washer pumps.

Coat sealing rings of washer pump with anti-friction agent.

Make sure hoses are laid without kinks.

Fill fluid tank for windshield washer system.

61 71 100 REMOVING AND INSTALLING/REPLACING WINDSHIELD WASHER PUMP

Note. Drain washer fluid tank.

Unfasten plug connection (1) and disconnect.

Scheme 176

Detach hose (2) in direction of arrow from windshield washer pump (3).

If necessary, turn window washer pump (3) and pull in direction of arrow out of washer fluid reservoir (4).

Installation

Replace sealing ring of windshield washer pump.

Coat sealing ring of windshield washer pump with antiseize agent.

Ensure hose is laid without kinks.

Fill washer fluid reservoir.

See also:
• 12 00 ... INSTRUCTIONS FOR WELDING WORK (OVERLOAD PROTECTION OF CONTROL UNITS
• 51 47 161 REMOVING AND INSTALLING/REPLACING RIGHT LUGGAGE COMPARTMENT WHEEL ARCH TRIM
• 51 45 030 REMOVING AND INSTALLING INSTRUMENT PANEL TRIM
• 52 13 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (NORMAL/MANUAL)
• 52 16 000 REMOVING AND INSTALLING FRONT SEAT (SPORTS/ELECTRIC), LEFT OR RIGHT
• 65 12 050 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT CENTRAL BASE SPEAKER (UNDER FRONT SEAT)
• 51 43 150 REMOVING AND INSTALLING OR REPLACING TRIM FOR LEFT OR RIGHT DOOR PILLAR (BOTTOM)
• GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES
• 54 0 ... NOTES ON PANORAMA GLASS ROOF (INITIALIZATION/NORMALIZATION/LEARNING OF CHARACTERISTIC CURVE)
• 51 47 102 REMOVING AND INSTALLING/REPLACING LUGGAGE COMPARTMENT FLOOR TRIM PANEL
• STEERING WHEEL
• LOWER SECTION OF STEERING COLUMN COVER
• 64 22 135 REMOVING AND INSTALLING/REPLACING LEFT FRESH-AIR GRILL
• 64 11 377 REMOVING AND INSTALLING CONTROL PANEL FOR HEATER - A/C SYSTEM (REPLACING, AUTOMATIC AIR CONDITIONING)
• 51 44 ... REMOVING AND INSTALLING FRONT ROOFLINER TRIM
• 52 14 040 REMOVING AND INSTALLING/REPLACING Outer cover on front left or right seat (normal/electric)
• 52 16 040 REMOVING AND INSTALLING/REPLACING OUTER COVER ON FRONT LEFT OR RIGHT SEAT (SPORTS/ELECTRIC)
• 52 13 040 REMOVING AND INSTALLING / REPLACING OUTER COVER ON LEFT OR RIGHT FRONT SEAT BACK-REST (NORMAL / MANUAL)
• STEERING WHEEL
• REMOVAL & INSTALLATION (SPORTS STEERING WHEEL)
• 51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY
• 51 47 490 REMOVING AND INSTALLING/REPLACING FRONT UNDERBODY PROTECTION
• 51 16 366 REMOVING AND INSTALLING RIGHT GLOVEBOX WITH HOUSING
• 63 31 000 REMOVING AND INSTALLING/REPLACING CEILING LIGHT (FRONT)
• 51 13 115 REMOVING AND INSTALLING/REPLACING COWL PANEL COVER
• 51 71 080 REMOVING AND INSTALLING/REPLACING HEATER BULKHEAD
• 51 71 412 REMOVING AND INSTALLING REAR SPOILER
• 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY
• 61 00 ... BATTERY CHARGING
• 12 00 ... INSTRUCTIONS ON STARTING AID
• 61 20 ... BATTERY OPEN-CIRCUIT CURRENT TEST
• 61 00 ... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY
• 61 13 .. UNLOCKING AND DISCONNECTING DIFFERENT PLUG CONNECTIONS
• 61 00 ... NOTES ON HANDLING OPTICAL FIBERS
• 61 13 ... CUTTING OFF, STRIPPING INSULATION AND CUTTING OPTICAL FIBRES TO LENGTH
• 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD
• 61 00 ... BATTERY
• 61 31 005 REMOVING AND INSTALLING/REPLACING FIXTURE FOR STEERING COLUMN STALK
• DIAGNOSIS PROGRAMMING/CODING
• 61 31 115 REPLACING ROCKER SWITCH FOR SIDE WINDOW OPERATION (FRONT)
• 61 71 061 REPLACING FLUID RESERVOIR FOR WINDSHIELD WASHER SYSTEM
• 61 35... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE)
• 61 35 679 INITIALIZING RAIN/LIGHT SENSOR
• 61 62 030 REPLACING WIPER ARM FOR REAR WINDOW WIPER
• 61 71 100 REMOVING AND INSTALLING/REPLACING WINDSHIELD WASHER PUMP
• 61 62 150 REMOVING AND INSTALLING/REPLACING WINDOW WASHER PUMP FOR REAR WINDOW WASHER SYSTEM
• 61 67 010 REMOVING AND INSTALLING/REPLACING WASHER PUMP OF HEADLIGHT CLEANING SYSTEM