17 00 009 Checking cooling system for leaks (N54, N52K)
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
Protective measures/rules of conduct
- Wear protective goggles
- Wear protective gloves
- Observe national/country-specific regulations
| IMPORTANT | Risk of slipping due to coolant on the floor. Danger of injury! |
Catch and dispose of drained coolant in drip tray (1) and if necessary special tool 00 2 030 (universal hydraulic lifter).
Recycling
Observe country-specific waste-disposal regulations.
Scheme 9
Checking pressure drop in cooling system
Open cap on coolant expansion tank. Fit special tools (1) 17 0 101 and (2) 17 0 113.
Build up GAUGE PRESSURE and wait approx. 2 minutes.
Cooling system is impervious to leaks if pressure drop is max. 0.1 bar.
Scheme 10
Checking pressure relief valve in cap
Note. While the vehicle is driven at high outside temperatures, the design may cause the pressure relief valve in the cap to open slightly and air together with dissolved coolant to escape. This coolant vapor condenses on the surface of the expansion tank and leaves traces when the vehicle has cooled down. These traces do not indicate whether the cap is defective or not. When the vehicle has been parked up for an extended period of time, the residual escaping coolant can cause the pressure relief valve in the cap to stick; therefore check the cap again 2 to 3 times. Replace the cap only after you have checked three times and there is an incorrect opening pressure.
Checking pressure relief valve in cap
Screw cap (1) onto special tool 17 0 114.
Build up pressure with special tool (hand pump) 17 0 101; observe pressure gauge to ascertain when opening pressure is achieved.
Compare OPENING PRESSURE of pressure relief valve.
Scheme 11
17 00 515 Checking function of radiator and heating system
| WARNING | Danger of scalding! Only carry out work on cooling system after engine has cooled down. |
Necessary preliminary tasks
- Switch off ignition.
- Remove air duct.
- Remove fan cowl with electronic fan.
Check production date.
Scheme 12
Clamp off low-temperature feed lines with special tool 13 3 010 .
Function test
Observe diagnosis instructions.
Scheme 13
Check function of radiator.
Clamp off low-temperature feed line (1) at coolant pump outlet or radiator inlet with special tool 13 3 010 (see arrows).
Scheme 14
Automatic transmission only
Check function of heat exchanger.
Clamp off low-temperature feed line (1) at coolant pump outlet with special tool 13 3 010 (see arrow).
Clamp off low-temperature feed line (2) at oil-coolant heat exchanger with special tool 13 3 010 (see arrow).
Scheme 15
Check heating and cooling circuits in accordance with diagnosis instruction.
17 00 008 Draining and adding coolant (N54)
| WARNING | Risk of scalding! This repair work on the cooling system should only be carried out on an engine that has cooled down! |
| IMPORTANT | Lifetime coolant filling: Never reuse used coolant! When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled. In the case of other removal work involving the draining of partial quantities of coolant, replace these quantities which have been drained with new coolant. |
Installation note
Use only recommended coolant. See COOLING SYSTEM - OPERATING FLUIDS .
Observe mixture ratio .
Protective measures/rules of conduct
- Wear safety goggles
- Wear protective gloves
- Observe national/country-specific regulations
| IMPORTANT | For dirt contamination of the cooling system (e.g. by engine oil), the cooling system must be rinsed with water until all dirt contamination is removed! |
| IMPORTANT | Risk of skidding due to coolant on the floor. Danger of injury! |
Catch and dispose of drained coolant in drip tray (1) and if necessary special tool 00 2 030 (universal hydraulic lifting equipment).
Recycling
Observe country-specific waste disposal regulations.
Necessary preliminary work
- Remove front «UNDERBODY PROTECTION»(ref-381258-S36346312162010122800000)
- Remove «FAN COWL»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-11-035-removing-and-installingreplacing)
Draining coolant
Open sealing cap (1) on coolant expansion tank.
Installation note
Close sealing cap (1) until the arrow marks line up.
Scheme 16
Unfasten and detach coolant hose (1) from radiator.
Drain, catch and dispose of coolant.
Scheme 17
Adding coolant
Use recommended coolant. See COOLING SYSTEM - OPERATING FLUIDS .
Observe mixture ratio .
Observe CAPACITIES .
Fill and vent COOLING SYSTEM .
Observe bleeding instructions without fail.
Assemble engine.
Check COOLANT SYSTEM for tightness.
17 00... Instructions for working on cooling system
| WARNING | Danger of scalding! Work on the cooling system should only be carried out when the engine has cooled down. |
| IMPORTANT | Wear protective gloves and safety goggles. |
| IMPORTANT | Lifetime coolant filling: Never reuse used coolant. When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled. In the case of other removal work involving the draining of partial quantities of coolant, replace these quantities which have been drained with new coolant. |
| IMPORTANT | Open cooling system only when it has cooled down. Opening the cooling system while hot can result in air entering the system. This can cause overheating with permanent damage to the engine. |
| IMPORTANT | You must protect the alternator against contamination before carrying out any work on the cooling circuit. Cover alternator with suitable materials. Failure to comply with this procedure may result in an alternator malfunction. |
| IMPORTANT | Do not fill coolant expansion tank over MAX level as overfilling will cause the coolant to overflow. This may give rise to traces of residual coolant on the expansion tank or in the engine compartment and wrongly suggest possible leakages. |
Recycling
Catch and dispose of drained coolant.
Observe country-specific waste-disposal regulations.
Note. To disconnect coolant hoses, use commercially available disconnect tools such as HAZET brand tools (see table).
| HAZET no. | Description |
|---|---|
| 4590-1 | Disconnect tool, length (mm): 150 |
| 4590-2 | Disconnect tool, length (mm): 180 |
| 4590-3 | Disconnect tool, length (mm): 253 |
| 4590/2 | Disconnect/plier set |
| 4590/3 | Disconnect/plier set |
HAZET TOOLS DESCRIPTION CHART
Scheme 18
Note. Tightening torque, hose clamps 17 00 1AZ .
Scheme 19
Instructions for disassembly/assembly of coolant hose quick-connect couplings
Disassembly of quick-connect coupling
Pull out lock (1) and (2). Pull off hose.
Scheme 20
Installation
Check O-rings (1).
Do not coat O-rings (1) with antiseize agent.
Scheme 21
Assembly of quick-connect coupling
Press in lock (1) before installing fast-release coupling.
Push on hose.
Quick-connect coupling must clearly snap audibly into place.
Scheme 22
00 Safety information for working on vehicles with automatic engine start-stop function (MSA)
| WARNING | If the engine hood/bonnet contact is pulled upwards (workshop mode), the information "switch closed" is output. The automatic engine start stop function is active. An automatic engine start is possible. |
Observe safety precautions when working on MSA vehicles
Before carrying out practical work on the engine, always ensure that the MSA functionality is deactivated so as to prevent automatic engine starting while work is being carried out in the engine compartment.
MSA function is deactivated by
- Deactivate MSA by means of button (1) in passenger compartment
- Open seat belt buckle and driver's door
Scheme 23
- Open engine bonnet/hood and ensure that engine hood/bonnet contact is not in workshop mode
- Workshop mode
- Basic setting (engine hood/bonnet open) B = 7 mm
To make sure that the engine hood/bonnet contact is at the basic setting, if necessary press the hood/bonnet contact up to the limit position before starting work and slowly release.
Scheme 24
When working with diagnosis tools
- Observe instructions in diagnosis tool
17 00 039 Venting and filling cooling system with vacuum filling unit
| Type | Engine | Adapter Y from 17 0 100 |
|---|---|---|
| E60/E61/E63/E64 | All | 17 0 113 |
| E65/E66 | M54/N52/N62/N62T/N73 | 17 0 105 |
| E65/E66 | M57S/M57T/M67/M67T | 17 0 113 |
| E70/E71/E72 | All | 17 0 113 |
| E81/E82/E84/E87/E88/E89 | All | 17 0 113 |
| E83 | M54/N46/N52K | 17 0 105 |
| E83 | M47S/M57S/M57T/M57Y/N47 | 17 0 113 |
| E85/E86 | All | 17 0 105 |
| E90/E91/E92/E93 | All | 17 0 113 |
| F01/F02/F03/F04/F07/F10 | All | 17 0 113 |
| R50/R52 | W10 | 17 0 107 and 17 0 102 |
| R50 | W17 | 17 0 109 |
| R52/R53 | W11 | 17 0 109 |
| R55/R56/R57/R60 | All | 17 0 109 |
| F25 | All | 17 0 113 |
SPECIAL TOOLS DESCRIPTION
| IMPORTANT | Lifetime coolant filling: Never reuse used coolant! When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled. In the case of other removal work involving the draining of part quantities of coolant, replace these quantities which have been drained with new coolant. |
| IMPORTANT | You must protect the alternator against contamination by coolant when carrying out repair work on the cooling circuit. Cover alternator with suitable materials. Failure to comply with this procedure may result in an alternator malfunction. |
Note on ordering
- Workshop equipment
- Workshop equipment catalogue
- Filler unit no. 81 39 2 152 473
- Collecting vessel no. 81 49 2 152 347
- Adapter: «17 0 100»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-special-tools)
| IMPORTANT | Risk of slipping due to coolant on the floor. Danger of injury! |
Catch and dispose of emerging coolant in drip tray (1) and if necessary special tool 00 2 030 (universal hydraulic lifting equipment).
Recycling
Observe country-specific waste disposal regulations.
| IMPORTANT | Check all the coolant hoses before filling the cooling system with the vacuum filling unit. If necessary, replace damaged and porous coolant hoses. |
Scheme 25
- 1) Filling unit with vacuum meter and shut-off values
- 2) Filler hose
- 3) Coolant container
- 4) Venturi nozzle
- 5) Compressed air connection (max. 6 bar)
- 6) Outgoing-air hose (lead outgoing-air hose into a collecting container)
Requirements
- Cooling system expansion tank must be empty.
- There must be sufficiently premixed coolant in the filling unit container, 1 - 2 liters more than the vehicle filling capacity. Use recommended coolant. See «COOLING SYSTEM - OPERATING FLUIDS»(ref-265751) . Observe «mixture ratio»(ref-265751) . Observe capacities.
- Position the filling unit container at the same height as the coolant expansion tank.
- Compressed-air connection with 6 bar pressure present.
- Set vehicle heater to maximum temperature.
Select adapter (Y) according to table and connect to coolant expansion tank.
Connect filler unit to adapter connection (X).
Scheme 26
Shut-off valves (A) and (B) of the filling unit (1) must be closed.
X) Expansion tank connection
Scheme 27
Connect venturi nozzle (1) to filling unit (2).
X) Expansion tank connection
Scheme 28
Connect compressed air (1).
X) Expansion tank connection
Scheme 29
Open shut-off valve (B).
The venturi nozzle produces a flow noise.
Scheme 30
Then open shut-off valve (A) until the filling hose (1) is free of bubbles.
Close shut-off valve (A) again. The filling hose (1) is vented in this way.
Scheme 31
Shut-off valve (B) remains open. Generate vacuum in coolant system for approx. 2 minutes. The final vacuum is reached at a vacuum of -0.7 to -0.95 bar. Green scale on the vacuum meter.
Note. The coolant hoses contract during vacuum build-up.
Then close shut-off valve (B) again.
Scheme 32
Both shut-off valves (A) and (B) must be closed. Then seal Venturi nozzle (1).
Scheme 33
The cooling system must hold the vacuum for 30 seconds. If the needle in the vacuum meter falls, this indicates a leak in the cooling system.
If the vacuum remains constant, proceed with filling.
In event of leaks, check cooling system for leaks.
Scheme 34
| IMPORTANT | There must be sufficiently premixed coolant in the filling unit container, 1 - -2 liters more than the vehicle filling capacity. Position the filling unit container at the same height as the coolant expansion tank. |
Shut-off valve (B) remains closed during the filling process.
To fill the cooling system, open shut-off valve (A) to filling unit container.
Scheme 35
Coolant is now added.
The filling process is finished when the needle in the vacuum meter is at 0 bar or no longer falls.
If necessary, reduce remaining vacuum. Open shut-off valve (B) to do so.
Scheme 36
Remove filling unit with adapter from expansion tank.
Close coolant expansion tank.
Check function of cooling system.
Scheme 37
Check cooling system for leaks.
Venting and filling cooling system with vacuum filling unit
17 00 039 Venting cooling system and checking for water leaks (N54)
| WARNING | Danger of scalding! Open sealing cap only after engine has cooled down. |
| IMPORTANT | Electric coolant pump! FOLLOW INSTRUCTIONS FOR WORKING ON COOLING SYSTEM . |
| IMPORTANT | Lifetime coolant filling: Never reuse used coolant! When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled. In the case of other removal work involving the draining of partial quantities of coolant, replace these quantities which have been drained with new coolant. |
Only when refilling!
Use recommended coolant. See COOLING SYSTEM - OPERATING FLUIDS .
Observe mixture ratio .
Perform filling operation slowly.
Adjust coolant level to MAX.
Scheme 38
Close coolant expansion tank.
Installation
Close cap (1) until the arrow marks line up.
| IMPORTANT | The following venting procedure is necessary e.g. when a part is replaced in the cooling system or when the cooling system is refilled. |
Vehicles with independent heating only
Open vent screw (1).
Tightening torque 17 00 4AZ .
Slowly fill coolant expansion tank with recommended coolant. See COOLING SYSTEM - OPERATING FLUIDS . .
Close vent screw (1) after coolant emerges.
Installation
Have a cleaning cloth ready and mop up emerging coolant.
Scheme 39
Adding coolant
Note. Open vent screw (1). Fill coolant expansion tank up to lower edge of filler neck with recommended coolant. See COOLING SYSTEM - OPERATING FLUIDS . . Observe mixture ratio . Close bleed screw (1). Close cap on expansion tank.
Installation
Have a cleaning cloth ready and mop up emerging coolant.
Scheme 40
Only when venting!
Note. Do not open the coolant expansion tank cap during the venting procedure. Connect battery charger. Switch on ignition. Set heater to maximum temperature and turn fan down to lowest speed. Press accelerator pedal for 10 seconds to floor. Engine must not be started. The venting procedure is started when the accelerator pedal is pressed and takes approx. 12 minutes. (Electric coolant pump was activated and shuts down automatically after approx. 12 minutes). Then top up fill level in coolant expansion tank with 100 ml above max (see illustration). Check cooling system for leaks. If venting has to be carried out again (e.g. if cooling system is leaking), allow DME to fall completely (leave ignition key removed for approx. 3 minutes), then repeat from Point 3.
Only when venting!
Perform filling operation slowly.
Fill coolant expansion tank with 100 ml above max.
100 ml corresponds to A=6 mm.
Scheme 41
Close coolant expansion tank.
Installation
Close cap (1) until the arrow marks line up.
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
Protective measures/rules of conduct
- Wear protective goggles
- Wear protective gloves
- Observe national/country-specific regulations
| IMPORTANT | Risk of slipping due to coolant on the floor. Danger of injury! |
Catch and dispose of drained coolant in drip tray (1) and if necessary special tool 00 2 030 (universal hydraulic lifter).
Recycling
Observe country-specific waste-disposal regulations.
Checking pressure drop in cooling system
Open cap on coolant expansion tank. Fit special tools (1) 17 0 101 and (2) 17 0 113.
Build up GAUGE PRESSURE and wait approx. 2 minutes.
Cooling system is impervious to leaks if pressure drop is max. 0.1 bar.
Checking pressure relief valve in cap
Note. While the vehicle is driven at high outside temperatures, the design may cause the pressure relief valve in the cap to open slightly and air together with dissolved coolant to escape. This coolant vapor condenses on the surface of the expansion tank and leaves traces when the vehicle has cooled down. These traces do not indicate whether the cap is defective or not. When the vehicle has been parked up for an extended period of time, the residual escaping coolant can cause the pressure relief valve in the cap to stick; therefore check the cap again 2 to 3 times. Replace the cap only after you have checked three times and there is an incorrect opening pressure.
Checking pressure relief valve in cap
Screw cap (1) onto special tool 17 0 114.
Build up pressure with special tool (hand pump) 17 0 101; observe pressure gauge to ascertain when opening pressure is achieved.
Compare OPENING PRESSURE of pressure relief valve.
17 11 052 Removing and installing left module carrier (N52K, N54)
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
Necessary preliminary tasks
- Remove «FAN COWL»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-11-035-removing-and-installingreplacing)
- N54/N54T only: Remove «INTERCOOLER»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-51-000-removing-and-installingreplacing)
Release bolts (1) on radiator on left and right.
Tightening torque 17 10 2AZ .
Do not unfasten or detach coolant hose (2).
Do not drain coolant.
Scheme 42
Slide radiator and condenser slightly towards rear.
Feed out left module carrier (1) and remove towards top.
Scheme 43
Installation
When reinstalling module carrier (1), ensure without fail that the radiator is correctly seated in mounting (2).
Scheme 44
Add final details to vehicle.
17 11 000 Removing and installing radiator (N52K, N54)
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
| IMPORTANT | Wear protective goggles and gloves. |
Necessary preliminary tasks
- Remove «FAN COWL»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-11-035-removing-and-installingreplacing)
- Draining «COOLANT»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-00-008-draining-and-adding)
- Unlock coolant hoses and detach
- N54/N54T only: Remove «INTERCOOLER»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-51-000-removing-and-installingreplacing)
Only automatic transmission or twin-clutch gearbox: Release bolt and detach hose (1).
Scheme 45
Only automatic transmission or twin-clutch gearbox: Release bolt (1) and detach hose (2).
Scheme 46
Release bolts (1) on radiator on left and right.
Tightening torque 17 10 2AZ .
Unlock and detach coolant hose (2).
Lift out module carrier (1) on left.
Feed out radiator (2) and remove towards top.
Scheme 47
Installation
When reinstalling the radiator and module carrier (1), ensure without fail that the radiator is correctly seated in mounting (2).
Add final details to vehicle.
Check COOLING SYSTEM for leaks.
17 11 054 Removing and installing right module carrier (N52K, N54)
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
| WARNING | Risk of injury! Refrigerant circuit is under high pressure! Follow safety INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A . Avoid contact with refrigerant and refrigerant oil Follow safety instructions for 64 50... SAFETY INSTRUCTIONS FOR HANDLING REFRIGERANT OIL . |
| IMPORTANT | Risk of damage! Restart engine only when A/C system has been correctly filled. Follow INSTRUCTIONS FOR OPENING AND REPLACING PARTS IN REFRIGERANT CIRCUIT for opening and replacing parts in refrigerant circuit. If A/C system is opened for more than 24 hours: Replace DESICCANT INSERT for A/C system. |
Necessary preliminary tasks
- Remove left «MODULE CARRIER»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-11-052-removing-and-installing)
- Drain off «AIR CONDITIONING SYSTEM (R 134A)»(/bmw/z4/e89-2009-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair__64-50-010-drawing-off-evacuating)
Release screws (1).
Tightening torque, see 64 53 6AZ in 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Detach A/C lines (2) from A/C condenser.
Installation
Replace all sealing rings and moisten with refrigerant oil.
Scheme 48
Lift out right module carrier (1) together with A/C condenser (2).
Scheme 49
Release A/C condenser from module carrier. In so doing, release lock (1) on side of module carrier in direction of arrow.
Scheme 50
Installation
When reinstalling the radiator and module carrier (1), ensure without fail that the radiator is correctly seated in mounting (2).
Add final details to vehicle.
Evacuate and fill AIR CONDITIONING SYSTEM (R 134A) .
17 11 100 Removing and installing/replacing coolant expansion tank (N54, N52K)
Necessary preliminary tasks
- Drain «COOLANT»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-00-008-draining-and-adding) .
N54/N54T only: Release vacuum line at retainers (1) from expansion tank.
Unfasten screws (2).
Tightening torque 17 10 4AZ .
Release and disconnect coolant hoses (3).
Raise expansion tank (4)
Scheme 51
Unlock plug (1) on coolant level switch and disconnect.
Remove expansion tank (2).
Installation
Make sure locating pin (3) is correctly seated in rubber mount (4).
Scheme 52
Assemble engine.
Top up COOLANT .
Check cooling system for LEAKS .
17 12 010 Removing and installing/replacing coolant pipe on front axle (N54)
Necessary preliminary tasks
- Remove left «CHARGE-AIR DUCT»(/bmw/z4/e89-2009-2013/remont/mechanical/#engine-repair-n54__11-61-365-removing-and-installingreplacing)
- Draining «COOLANT»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-00-008-draining-and-adding)
Release screws (1).
Tightening torque 17 10 5AZ .
Unfasten and detach coolant pipe from expansion tank (2).
Unfasten and detach coolant pipe from coolant thermostat (3).
Unfasten and detach coolant pipe from coolant hose (4).
Feed out coolant pipe and remove.
Scheme 53
Assemble engine.
Top up COOLANT .
Check cooling system for LEAKS .
17 11 150 Removing and installing/replacing engine oil cooler (N54)
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
| IMPORTANT | Wear protective goggles and gloves. |
Necessary preliminary tasks
- Remove right «WHEEL ARCH COVER (FRONT SECTION)»(ref-381258-S38265522832010122800000) front section
Recycling
Engine oil escapes when oil lines are released. Catch and dispose of emerging engine oil.
Observe country-specific waste-disposal regulations.
Release screw (1).
Tightening torque 17 21 2AZ .
Detach engine oil line.
Engine oil escapes when oil lines are released. Catch and dispose of emerging engine oil.
Observe country-specific waste-disposal regulations.
Unfasten screws (2).
Tightening torque 17 21 3AZ .
Feed out engine oil cooler (3) and remove.
Scheme 54
Installation
Replace sealing rings on engine oil lines.
Scheme 55
Note. After completing work, check engine oil level and top up engine oil if necessary.
17 11 035 Removing and installing/replacing fan cowl with electric fan (N52K, N54)
Necessary preliminary tasks
- Read out fault memory of DME control unit
- Turn off ignition
- Remove «CROSS-MEMBER»(ref-381258-S34466304982010122800000)
- Only automatic transmission and twin-clutch gearbox
RELEASE TRANSMISSION FLUID COOLER from the fan cowl do not remove
Unclip coolant line (1) from fan cowl.
Unlock and disconnect plug (2) on fan cowl on right.
Scheme 56
Release screw (1) on fan cowl.
Tightening torque 17 10 1AZ .
Release lock (2) and remove fan cowl (3) towards top.
Scheme 57
Installation
Insert retaining tabs (1) at bottom on radiator/intercooler.
Scheme 58
Note. Check stored fault message. Reassemble the vehicle. clear fault memory.
17 22 030 Removing and installing/replacing oil line for engine oil cooler (N54)
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
| IMPORTANT | Wear protective gloves and goggles. |
Recycling
Engine oil escapes when oil line is released.
Catch and dispose of emerging engine oil.
Observe country-specific waste-disposal regulations.
Necessary preliminary tasks
- Remove «FAN COWL»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-11-035-removing-and-installingreplacing)
Release screw.
Tightening torque 17 21 1AZ .
Detach oil line (1) from oil filter control housing.
Catch and dispose of emerging engine oil.
Scheme 59
Release screw (1).
Tightening torque 17 21 2AZ .
Disconnect oil line (1) from engine oil cooler flange, feed out and remove.
Catch and dispose of emerging engine oil.
Installation
Replace sealing rings on engine oil line.
Note. After completing work, check engine oil level and top up engine oil if necessary.
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
| IMPORTANT | Wear protective goggles and gloves. |
Necessary preliminary tasks
- Remove right «WHEEL ARCH COVER»(ref-381258-S38265522832010122800000) front section
Recycling
Engine oil escapes when oil lines are released. Catch and dispose of emerging engine oil.
Observe country-specific waste-disposal regulations.
Release screw (1).
Tightening torque 17 21 2AZ .
Detach engine oil line.
Engine oil escapes when oil lines are released. Catch and dispose of emerging engine oil.
Observe country-specific waste-disposal regulations.
Unfasten screws (2).
Tightening torque 17 21 3AZ .
Feed out engine oil cooler (3) and remove.
Installation
Replace sealing rings on engine oil lines.
Note. After completing work, check engine oil level and top up engine oil if necessary.
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
| IMPORTANT | Wear protective gloves and goggles. |
Recycling
Engine oil escapes when oil line is released.
Catch and dispose of emerging engine oil.
Observe country-specific waste-disposal regulations.
Necessary preliminary tasks
- Remove «FAN COWL»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-11-035-removing-and-installingreplacing)
Release screw.
Tightening torque 17 21 1AZ .
Detach oil line (1) from oil filter control housing.
Catch and dispose of emerging engine oil.
Release screw (1).
Tightening torque 17 21 2AZ .
Disconnect oil line (1) from engine oil cooler flange, feed out and remove.
Catch and dispose of emerging engine oil.
Installation
Replace sealing rings on engine oil line.
Note. After completing work, check engine oil level and top up engine oil if necessary.
17 21 020 Removing and installing/replacing transmission oil cooler (DKG) (N54)
| IMPORTANT | Danger of scalding! Only perform this work after engine has cooled down. |
Necessary preliminary tasks
- Drain «COOLANT»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-00-008-draining-and-adding)
- Remove «UNDERBODY PROTECTION»(ref-381258-S36346312162010122800000)
Recycling
Catch and dispose of drained coolant in a suitable container.
Transmission fluid emerges when fluid lines are detached from transmission fluid cooler.
Catch and dispose of escaping transmission fluid in a suitable container.
Observe country-specific waste-disposal regulations.
Release and disconnect coolant hoses (1).
Unlock transmission fluid lines (2) and detach.
Release screw (3).
Tightening torque 17 10 6AZ .
Remove transmission fluid cooler (4).
Scheme 60
Note. Assemble engine. CHECKING OIL LEVEL in twin clutch gearbox. If necessary, fill with transmission oil.
17 21 500 Rinse gearbox oil cooler and lines of twin clutch gearbox
Note. Follow work steps for: Installing a new or replacement transmission.
Procedure
Double twin clutch gearbox removed.
Connect the respective adapters to all oil pipes leaving the double TCT (see description below).
Use quick-release coupling to connect line 17 2 019 from oil collecting unit.
Use quick-release coupling to connect drain line 17 2 018.
Hold and direct open end of drain line into a suitable drip tray.
Using oil collection unit, flush approx. 1 liter of transmission fluid (refer to Gear oil for dual clutch transmission GS7D36SG) through oil lines and transmission oil cooler.
Reposition quick-release couplings.
Flush oil lines/transmission oil cooler in opposite direction with approx. 1 liter of transmission fluid.
Disconnect quick-release couplings.
Remove adapter.
Note. Dispose of flushing oil correctly. Do not reuse under any circumstances.
Press hydraulic lines (1) into adapters (2).
Slide clamping bar (3) into guides and secure with screw (4).
Scheme 61
Arrangement of flushing apparatus for TCT
Scheme 62
| WARNING | Danger of scalding! Only perform this work after engine has cooled down. |
| IMPORTANT | Wear protective gloves and goggles. |
Recycling
Engine oil escapes when oil line is released.
Catch and dispose of emerging engine oil.
Observe country-specific waste-disposal regulations.
Necessary preliminary tasks
- Remove «FAN COWL»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-11-035-removing-and-installingreplacing)
Release screw.
Tightening torque 17 21 1AZ .
Detach oil line (1) from oil filter control housing.
Catch and dispose of emerging engine oil.
Release screw (1).
Tightening torque 17 21 2AZ .
Disconnect oil line (1) from engine oil cooler flange, feed out and remove.
Catch and dispose of emerging engine oil.
Installation
Replace sealing rings on engine oil line.
Note. After completing work, check engine oil level and top up engine oil if necessary.
| IMPORTANT | Danger of scalding! Only perform this work after engine has cooled down. |
Necessary preliminary tasks
- Drain «COOLANT»(/bmw/z4/e89-2009-2013/remont/cooling-system-mechanical/#cooling-system-repair-n54__17-00-008-draining-and-adding)
- Remove «UNDERBODY PROTECTION»(ref-381258-S36346312162010122800000)
Recycling
Catch and dispose of drained coolant in a suitable container.
Transmission fluid emerges when fluid lines are detached from transmission fluid cooler.
Catch and dispose of escaping transmission fluid in a suitable container.
Observe country-specific waste-disposal regulations.
Release and disconnect coolant hoses (1).
Unlock transmission fluid lines (2) and detach.
Release screw (3).
Tightening torque 17 10 6AZ .
Remove transmission fluid cooler (4).
Note. Assemble engine. CHECKING OIL LEVEL in twin clutch gearbox. If necessary, fill with transmission oil.
Note. Follow work steps for: Installing a new or replacement transmission.
Procedure
Double twin clutch gearbox removed.
Connect the respective adapters to all oil pipes leaving the double TCT (see description below).
Use quick-release coupling to connect line 17 2 019 from oil collecting unit.
Use quick-release coupling to connect drain line 17 2 018.
Hold and direct open end of drain line into a suitable drip tray.
Using oil collection unit, flush approx. 1 liter of transmission fluid (refer to Gear oil for dual clutch transmission GS7D36SG) through oil lines and transmission oil cooler.
Reposition quick-release couplings.
Flush oil lines/transmission oil cooler in opposite direction with approx. 1 liter of transmission fluid.
Disconnect quick-release couplings.
Remove adapter.
Note. Dispose of flushing oil correctly. Do not reuse under any circumstances.
Press hydraulic lines (1) into adapters (2).
Slide clamping bar (3) into guides and secure with screw (4).
Arrangement of flushing apparatus for TCT
Scheme 63
17 51 000 Removing and installing/replacing intercooler (N54)
Necessary preliminary tasks
- Remove front «UNDERBODY PROTECTION»(ref-381258-S36346312162010122800000) .
| IMPORTANT | Coat sealing rings of quick-connect couplings with antiseize agent. Pressure pipes cannot be fitted without antiseize agent. |
If fitted: Release screws (1). Remove cover (2).
Scheme 64
Unfasten and detach charge-air hoses (1).
Unfasten screws (2).
Tightening torque 17 10 3AZ .
Remove intercooler (3) towards bottom.
Installation
Charge-air hoses must audibly snap into place.
Coat sealing rings of charge-air hoses with antiseize agent.
Pressure pipes cannot be fitted without antiseize agent.
Scheme 65
Check charge-air duct for leaks.
Assemble engine.
See also:
• 00 2 030
• GAUGE PRESSURE
• 13 3 010
• 17 00 1AZ
• 17 0 100
• INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A
• 64 50... SAFETY INSTRUCTIONS FOR HANDLING REFRIGERANT OIL
• INSTRUCTIONS FOR OPENING AND REPLACING PARTS IN REFRIGERANT CIRCUIT
• DESICCANT INSERT
• AIR CONDITIONING SYSTEM (R 134A)
• 64 53 REFRIGERANT LINES AND EXPANSION VALVE
• CHARGE-AIR DUCT
• CHECKING OIL LEVEL
• FAN COWL
• COOLING SYSTEM
• COOLANT SYSTEM
• FOLLOW INSTRUCTIONS FOR WORKING ON COOLING SYSTEM
• INTERCOOLER
• COOLANT
• MODULE CARRIER
• RELEASE TRANSMISSION FLUID COOLER