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Cooling System - Repair (n52, n62) BMW X5 E70

Cooling System (Mechanical) 43 illustrations ~3594 words

00 57 114 Checking and If Necessary Correcting Oil Cooler Line (N52K)

IMPORTANTDanger of scalding! Only perform this work after engine has cooled down.

Necessary preliminary tasks

  1. Remove underbody protection. See «51 47 490 REMOVING AND INSTALLING / REPLACING FRONT ASSEMBLY UNDERSIDE PROTECTION»(/bmw/x5/e70-2006-2010/remont/door-locks-anti-theft-systems/#body-equipment-repair__51-47-490-removing-and-installing)

Recycling

Transmission fluid emerges when oil lines are detached from heat exchanger.

Catch and dispose of escaping transmission fluid.

Observe country-specific waste-disposal regulations.

Prescribed routing of lines.

Check hoses for ease of movement with respect to ribbed V-belt.

Pay attention to routing of lines; realign retaining clamps and hoses if necessary.

Tightening torques 17 22 2AZ & 3AZ 17 22 OIL COOLER PIPES

Add final details to vehicle.

IMPORTANTAfter opening lines, check ATF level in automatic transmission.

00 57 115 Checking and Replacing Oil Cooler Line (N52K)

IMPORTANTDanger of scalding! Only perform this work after engine has cooled down.

Necessary preliminary tasks

  1. Secure engine in installation position. See «11 00 670 SECURING ENGINE IN INSTALLATION POSITION (N62)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-00-670-securing-engine-in) .
  2. Lower front axle support. See «31 11 506 LOWERING/RAISING FRONT AXLE CARRIER (UNIVERSAL LIFTER)»(/bmw/x5/e70-2006-2010/remont/axle-shafts/#front-axle-repair__31-11-506-loweringraising-front-axle) .

Recycling

Transmission fluid emerges when oil lines are detached from heat exchanger.

Catch and dispose of escaping transmission fluid.

Observe country-specific waste-disposal regulations.

Release pipe holder.

Unclip lines from holders.

Detach lines from transmission oil cooler and from transmission.

Tightening torques 17 22 2AZ & 3AZ 17 22 OIL COOLER PIPES

Check hoses for ease of movement with respect to ribbed V-belt.

Pay attention to routing of lines; realign retaining clamps and hoses if necessary.

Add final details to vehicle.

IMPORTANTAfter opening lines, check ATF level in automatic transmission, refer to Maintenance and General Information, Main Group 00.

Check ATF level in automatic transmission

Adjust toe-in on front axle. See 32 00 601 ADJUSTING TOE-IN ON FRONT AXLE

17 00 ... Instructions For Working On Cooling System

WARNINGDanger of scalding! Work on the cooling system should only be carried out when the engine has cooled down.
IMPORTANTWear protective gloves and goggles.
IMPORTANTLifetime 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.
IMPORTANTOpen 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.
IMPORTANTWhen working on the oil, coolant or fuel circuit, protect the alternator against contamination. Cover alternator with suitable materials. Failure to comply with this procedure may result in an alternator malfunction.
IMPORTANTDo 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. Tightening torque, hose clamps. See 17 00 COOLANT .

Scheme 1

Scheme 1
Scheme 1

Instructions for disassembly/assembly of coolant hose fast-release couplings

Disassembly of fast-release coupling

Withdraw lock (1/2), disconnect hose.

Scheme 2

Scheme 2
Scheme 2

Installation

Check O-rings (1).

Do not coat O-rings (1) with antiseize agent.

Scheme 3

Scheme 3
Scheme 3

Assembly of fast-release coupling

Press in lock (1) before installing fast-release coupling.

Push on hose.

Fast-release coupling must clearly snap audibly into place.

Scheme 4

Scheme 4
Scheme 4

17 00 005 Draining and Adding Coolant In Radiator (N52K)

WARNINGDanger of scalding! These tasks on the cooling system should only be carried out on an engine that has cooled down!
IMPORTANTWear protective gloves and goggles.
IMPORTANTLifetime 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

Use only recommended coolant.

Observe mixture ratio.

Recycling

Catch and dispose of drained coolant.

Observe country-specific waste-disposal regulations.

Necessary preliminary tasks

  1. Follow instructions for working on cooling system. See «17 00 ... Instructions For Working On Cooling System»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-instructions-for-working)
  2. Remove underbody protection. See «51 47 490 REMOVING AND INSTALLING / REPLACING FRONT ASSEMBLY UNDERSIDE PROTECTION»(/bmw/x5/e70-2006-2010/remont/door-locks-anti-theft-systems/#body-equipment-repair__51-47-490-removing-and-installing)
  3. Remove reinforcement plate. See «31 10 010 REMOVING AND INSTALLING/REPLACING REINFORCEMENT PLATE»(/bmw/x5/e70-2006-2010/remont/axle-shafts/#front-axle-repair__31-10-010-removing-and-installingreplacing)

Draining coolant

Open cap (1) on coolant expansion tank (2).

Installation

Close cap (1) until the arrow marks line up.

Scheme 5

Scheme 5
Scheme 5

Open coolant drain plug (1).

Drain, catch and dispose off coolant.

Installation

Scheme 6

Scheme 6
Scheme 6
  1. Replace sealing ring.
  2. Tightening torque. See «17 11 RADIATOR AND MOUNTING PARTS»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-tightening-torques-n52-n62__17-11-radiator-and-mounting-parts) .

Note. Adding coolant: Use only recommended coolant. Observe mixture ratio. Observe venting instructions without fail. Fill and vent cooling system 17 00 039 Venting Cooling System And Checking For Water Leaks (N52K)

17 00 008 Draining and adding coolant in radiator (N62TU, N63)

Special tools required

  1. «00 2 030»(/bmw/x5/e70-2006-2010/remont/oem-general-information/#maintenance-and-general-information-special-tools__00-2-030-universal-hydro-lifter-basic)
WARNINGRisk of scalding! This repair work on the cooling system should only be carried out on an engine that has cooled down!
IMPORTANTLifetime 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 50/50 mixture ratio.

Protective measures/rules of conduct

  1. Wear safety goggles.
  2. Wear protective gloves.
  3. Observe national/country-specific regulations.
IMPORTANTFor 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!
IMPORTANTRisk 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).

Scheme 7

Scheme 7
Scheme 7

Necessary preliminary work

  1. Follow notes for «performing repair work on the cooling system»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-instructions-for-working)
  2. Remove underbody protection. See «51 47 490 REMOVING AND INSTALLING / REPLACING FRONT ASSEMBLY UNDERSIDE PROTECTION»(/bmw/x5/e70-2006-2010/remont/door-locks-anti-theft-systems/#body-equipment-repair__51-47-490-removing-and-installing) .

Draining coolant: Open sealing cap (1) on coolant expansion tank (2). Installation note: Close sealing cap (1) until the arrow marks line up.

Scheme 8

Scheme 8
Scheme 8

If present, release coolant drain connector (1) on the radiator. For radiators without coolant drain connector, unlock coolant hose and remove. Drain, catch and dispose of coolant.

Scheme 9

Scheme 9
Scheme 9

Installation note: Replace sealing ring. Tightening torque, see 17 11 2AZ in 17 11 RADIATOR AND MOUNTING PARTS .

Note. Adding coolant: Use only recommended coolant. See COOLING SYSTEM - OPERATING FLUIDS . Observe 50/50 mixture ratio.

Observe bleeding instructions without fail. Fill and vent cooling system Check cooling system for watertightness.

17 00 039 Venting Cooling System And Checking For Water Leaks (N52K)

WARNINGDanger of scalding! Open sealing cap only after engine has cooled down.
IMPORTANTElectric coolant pump! Follow instructions for working on cooling system.
IMPORTANTLifetime 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 only recommended coolant.

Observe mixture ratio.

Perform filling operation slowly.

Adjust coolant level to MAX.

Close coolant expansion tank.

Installation

Close cap (1) until the arrow marks line up.

Scheme 10

Scheme 10
Scheme 10
IMPORTANTThe following venting procedure is necessary e.g. when a part is replaced in the cooling system or when the cooling system is refilled.

Adding coolant

Fill expansion tank slowly with recommended coolant up to lower edge until fill level stops dropping.

Observe mixture ratio.

Venting cooling system

Note. Do not leave the coolant expansion tank cap open during the venting procedure.

  1. Connect battery charger.
  2. Switch on ignition.
  3. Set heater to maximum temperature and turn fan down to lowest speed.
  4. Press accelerator pedal for 10 seconds to floor. Engine must not be started.
  5. 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).
  6. Then top up fill level in coolant expansion tank using measuring container with 300 ml above max.
  7. Check cooling system for leaks.
  8. 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 2.

Close coolant expansion tank.

Installation

Close cap (1) until the arrow marks line up. See 17 00 009 Checking Cooling System For Water Leaks

17 00 039 Venting cooling system and checking for water leaks (N62TU, M57T2)

WARNINGDanger of scalding! Open sealing cap only after engine has cooled down.

No vent screw on radiator or on thermostat housing. Cooling system is vented while it is filled and during subsequent idle operation.

Note. Before filling, turn on ignition. Set blower to low level. Set heating control to maximum temperature. This ensures that the water valves are fully opened and the auxiliary coolant pump is running.

IMPORTANTThe auxiliary coolant pump must deliver coolant in order to ensure full venting!

Use only recommended coolant. Check cooling system for leaks.

Perform filling operation slowly. Pour coolant into expansion tank up to MAX mark. Start engine and run at idle speed for approx. two minutes (cap open). Then adjust coolant level to MAX. Close cap and run engine up to operating temperature until main thermostat opens. Check cooling circuit for leaks.

Scheme 11

Scheme 11
Scheme 11
IMPORTANTThe engine must be cooled down before the coolant level is checked. Coolant temperature must not exceed 30 °C. If ambient temperature is above 30 °C, allow engine to cool down to ambient temperature at least. Check coolant level and adjust to MAX.

Do not fill coolant expansion tank over MAX level as overfilling will cause the coolant to overflow.

17 00 009 Checking Cooling System For Water Leaks

Special tools required

  1. 17 0 101 «17 0 100 TESTER»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-special-tools)
  2. 17 0 113 «17 0 100 TESTER»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-special-tools)
  3. 17 0 114 «17 0 100 TESTER»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-special-tools)
WARNINGDanger of scalding! Only perform this work after engine has cooled down.

Checking pressure drop in cooling system

Open cap on coolant expansion tank. Fit special tools 17 0 101 / 17 0 113. 17 0 100 TESTER

Build up gauge pressure, wait approx. 2 minutes.

Cooling system is impervious to leaks if pressure drop is max. 0.1 bar.

Scheme 12

Scheme 12
Scheme 12

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 17 0 100 TESTER .

Build up pressure with special tool (hand pump) 17 0 101 17 0 100 TESTER ; observe pressure gauge to ascertain when opening pressure is achieved.

Compare opening pressure of pressure relief valve.

Scheme 13

Scheme 13
Scheme 13

17 11 000 Removing and Installing Radiator (N52K)

WARNINGDanger of scalding! Only perform this work after engine has cooled down.
IMPORTANTWear protective goggles and gloves.

Necessary preliminary tasks

  1. Follow instructions for working on cooling system «17 00 ... Instructions For Working On Cooling System»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-instructions-for-working) .
  2. Remove fan cowl. See «17 11 035 Removing and Installing/Replacing Fan Cowl With Electric Fan (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-11-035-removing-and-installingreplacing) .
  3. Drain coolant. See «17 00 005 Draining and Adding Coolant In Radiator (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-005-draining-and-adding) .
  4. Unlock coolant hoses and detach.

Release screws.

Remove cover (1).

Scheme 14

Scheme 14
Scheme 14

Remove radiator (1) towards top.

Scheme 15

Scheme 15
Scheme 15

17 11 000 Removing and installing radiator (N62TU)

WARNINGDanger of scalding! Only perform this work after engine has cooled down.
IMPORTANTWear protective goggles and gloves.

Necessary preliminary tasks

  1. Follow instructions for working on cooling system «Instructions For Working On Cooling System»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-instructions-for-working) .
  2. Remove «fan cowl»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-11-035-removing-and-installingreplacing) .
  3. Drain «coolant»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-008-draining-and-adding) .
  4. Unlock coolant hoses and detach.

Unfasten screws. Remove cover (1).

Scheme 16

Scheme 16
Scheme 16

Remove radiator (1) towards top.

Scheme 17

Scheme 17
Scheme 17

17 11 035 Removing and Installing/Replacing Fan Cowl With Electric Fan (N52K)

Necessary preliminary tasks

  1. Read out fault memory of DME control unit
  2. Switch off ignition

Scheme 18

Scheme 18
Scheme 18

Lever out expansion rivets (1).

Press lock (2) and raise intake duct (3).

Detach intake duct (3) from air filter housing and remove.

Scheme 19

Scheme 19
Scheme 19

Unclip Bowden cable for engine bonnet/hood actuator from transverse reinforcement (1).

Release screws on left and right sides. Tightening torque. See ENGINE - TIGHTENING TORQUES .

Scheme 20

Scheme 20
Scheme 20

Remove cross-brace (1).

Scheme 21

Scheme 21
Scheme 21

Unlock plug (1) and remove.

Note. For reasons of clarity, illustration and text show A/C system refrigerant lines removed.

Scheme 22

Scheme 22
Scheme 22

Press lock (1).

Raise fan cowl (2) until holder (3) can be brought into assembly position.

Note. For reasons of clarity, illustration and text show coolant hose removed.

Scheme 23

Scheme 23
Scheme 23

Press lock (1).

Feed out fan cowl (2) towards top and remove.

Scheme 24

Scheme 24
Scheme 24

Installation

Insert retaining tab (1) at bottom on module carrier.

Scheme 25

Scheme 25
Scheme 25

Note. Check stored fault messages. Now clear the fault memory.

17 11 035 Removing and installing/replacing fan cowl with electric fan (N62TU)

Necessary preliminary tasks

  1. Read out fault memory of DME control unit
  2. Switch off ignition

Unclip cover (1) and remove

Scheme 26

Scheme 26
Scheme 26

Removing left and right intake ducts: Lever out expansion rivets (1). Press lock (2) and raise intake duct (3). Detach intake duct (3) from air filter housing and remove.

Scheme 27

Scheme 27
Scheme 27

Note. Illustration shows and text refers to the left intake duct. The procedure is identical for the right intake duct.

Release nut and remove bracket (1). Unclip pull cable (2).

Scheme 28

Scheme 28
Scheme 28

Release screws on left and right sides. Tightening torque, see 51 71 4AZ in 51 71 SEALS AND LOOSE BODY PARTS . Remove cross-brace (1).

Scheme 29

Scheme 29
Scheme 29

Unlock plug (1) and remove.

Scheme 30

Scheme 30
Scheme 30

Note. For reasons of clarity, illustration and text show A/C system refrigerant lines removed.

Press lock (1). Raise fan cowl (2) until holder (3) can be brought into assembly position.

Scheme 31

Scheme 31
Scheme 31

Note. For reasons of clarity, illustration and text show coolant hose removed.

Unclip coolant hose from fan cowl. (not shown). Press lock (1). Feed out fan cowl (2) towards top and remove.

Scheme 32

Scheme 32
Scheme 32

Installation: Insert retaining tab (1) at bottom on module carrier.

Scheme 33

Scheme 33
Scheme 33

Note. Check stored fault messages. Now clear the fault memory.

17 11 040 Removing and Installing/Replacing Thermostat Cartridge (N62TU/N52K)

IMPORTANTDanger of scalding! Only perform this work after engine has cooled down.

Necessary preliminary tasks

  1. Follow instructions for working on cooling system. See «17 00 ... Instructions For Working On Cooling System»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-instructions-for-working)
  2. Draining coolant. See «17 00 005 Draining and Adding Coolant In Radiator (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-005-draining-and-adding)
  3. Remove fan cowl. See «17 11 035 Removing and Installing/Replacing Fan Cowl With Electric Fan (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-11-035-removing-and-installingreplacing)

Unlock and detach coolant hose (1).

Release nuts and remove thermostat cartridge (2).

Installation

Scheme 34

Scheme 34
Scheme 34
  1. Clean contact faces.
  2. Check seals and replace if necessary.

17 11 046 Removing and Installing/Replacing Module Carrier (N52K)

Necessary preliminary tasks

  1. Remove fan cowl with electric fan. See «17 11 035 Removing and Installing/Replacing Fan Cowl With Electric Fan (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-11-035-removing-and-installingreplacing)
  2. Draining coolant. See «17 00 005 Draining and Adding Coolant In Radiator (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-005-draining-and-adding)
  3. Remove coolant radiator. See «17 11 000 Removing and Installing Radiator (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-11-000-removing-and-installing)
  4. Draw off fluid from power steering

Installation

Bleed power steering unit. See 32 13 006 BLEEDING POWER STEERING UNIT

  1. Unlock hydraulic lines on cooling loop and disconnect
  2. Secure A/C condenser against damage and against falling down.

Press lock (1) and remove holder (2) downwards.

Illustration shows the left holder: The same procedure applies to the opposite side.

Installation

Rubber mounts fall out easily, ensure correct installation position.

Remove module carrier (1) towards bottom.

When replacing module carrier

Add final details to vehicle.

Check system for leaks.

17 11 100 Removing and Installing/Replacing Coolant Expansion Tank (N62TU/N52K)

IMPORTANTDanger of scalding! Only perform this work after engine has cooled down.

Necessary preliminary tasks

  1. Follow instructions for working on cooling system. See «17 00 ... Instructions For Working On Cooling System»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-instructions-for-working) .
  2. Drain coolant. See «17 00 005 Draining and Adding Coolant In Radiator (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-005-draining-and-adding) from radiator down to lower edge on expansion tank.

Unlock and detach coolant hose (1).

Release screws.

Raise coolant expansion tank (2) until plug for coolant level switch and lower coolant hose are accessible.

Installation

Scheme 35

Scheme 35
Scheme 35
  1. Make sure expansion tank is in correct installation position.
  2. Tightening torque 17 10 2AZ. See «17 10 RADIATOR, EXPANSION TANK, LINES (N62TU, N52K, M57T2)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-tightening-torques-n52-n62__17-10-radiator-expansion-tank-lines) .

Unlock plug (1) and remove.

Unlock and detach lower coolant hose (2).

Remove expansion tank (3).

Scheme 36

Scheme 36
Scheme 36

17 11 150 Removing and installing/replacing engine oil cooler (N62TU)

IMPORTANTDanger of scalding! Only perform this work after engine has cooled down.

Necessary preliminary tasks

  1. Remove left wheel arch cover front section.

Release screw.

Installation: Replace sealing rings. Tightening torque, see 17 22 4AZ in 17 22 ENGINE OIL COOLER AND LINES .

Detach oil line (1) from engine oil cooler flange. Catch and dispose of emerging fluid. Unlock and disconnect holder (2). Remove engine oil cooler (3).

Scheme 37

Scheme 37
Scheme 37

Note. After completing work, check engine oil level and top up if necessary.

17 11 370 Removing and Installing/Replacing Power Steering Cooling Coil (N62TU/N52K/M57T2)

Special tools required

  1. 17 0 030 «17 0 030 PLIERS»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-special-tools)
WARNINGDanger of scalding! Only perform this work after engine has cooled down.
IMPORTANTWhen working on the oil, coolant or fuel circuit, you must protect the alternator against contamination.

Cover alternator with suitable materials.

Failure to comply with this procedure may result in an alternator malfunction.

Necessary preliminary tasks

  1. Remove radiator air duct. See «51 71 099 REMOVING AND INSTALLING/REPLACING RADIATOR AIR GUIDE»(/bmw/x5/e70-2006-2010/remont/door-locks-anti-theft-systems/#body-equipment-repair__51-71-099-removing-and-installingreplacing)
  2. Remove fan cowl. See «17 11 035 Removing and Installing/Replacing Fan Cowl With Electric Fan (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-11-035-removing-and-installingreplacing)
  3. After completing this operation, check fluid level in tank of power steering system. See «32 13 006 BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE)»(/bmw/x5/e70-2006-2010/remont/manual-power-steering/#steering-and-wheel-alignment-repair__32-13-006-bleeding-power-steering) .

Press lines (1) in direction of cooling coil (2). Pull locking ring towards rear and keep pressed.

Detach lines (1) from cooling coil (2).

If necessary, use special tool 17 0 030 PLIERS .

IMPORTANTCatch and dispose of emerging fluid.

Scheme 38

Scheme 38
Scheme 38

Release screws and detach side holder (1).

Feed out cooling coil (2) towards front and remove.

Scheme 39

Scheme 39
Scheme 39

17 21 500 Flushing Oil Cooler with Lines (Automatic Transmission)

Special tools required

  1. 17 2 018 «17 2 010 SET OF ADAPTERS»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-special-tools__17-2-010-set-of-adapters)
  2. 17 2 019 «17 2 010 SET OF ADAPTERS»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-special-tools__17-2-010-set-of-adapters)

Note. Carry out the work steps listed when: Fitting a new or replacement transmission Flushing can only be carried out with the automatic transmission removed.

Procedure

Automatic transmission removed.

Connect appropriate adapters (see description below) to oil lines exiting from automatic transmission.

Connect the connecting line 17 2 019. See 17 2 010 SET OF ADAPTERS from the oil collection unit with the quick-release coupling.

Connect drain line 17 2 018. See 17 2 010 SET OF ADAPTERS using quick-release coupling.

Feed open end of drain line into a suitable collection container.

Using oil collection unit, flush approx. 1 liter of transmission fluid (refer to BMW Service Operating Fluids) through oil lines and oil cooler.

Reposition quick-release couplings.

Flush oil lines/oil cooler in opposite direction with approx. 1 liter of transmission fluid (refer to BMW Service Operating Fluids).

Disconnect quick-release couplings, remove adapters.

Note. Dispose of flushing oil properly; do not under any circumstances reuse it.

Arrangement of flushing device for transmissions A5S 310Z, A5S 560Z, A5S 360R/390R, A4S 200R, A5S 325Z, GA6HP26Z

  1. Transmission-oil cooler with lines
  2. Oil collection unit
  3. Oil drip tray

17 2 011 Adapter for connecting transmission-side oil cooler lines (1)

17 2 015 Connection for oil collection unit (2), manufacturer: Deutsche Tecalemit

17 2 016 Connection for oil collection unit (2), manufacturer: Horn

17 2 017 Quick-release coupling (2 pieces)

17 2 018 Hose to oil drip tray (3)

17 2 019 Hose to oil collection unit (2)

17 2 021 Mounting plate for adapter 17 2 011 for transmissions A5S 325Z, GA6HP26Z

Scheme 40

Scheme 40
Scheme 40

Arrangement of flushing device for transmission A4S 310R

  1. Transmission-oil cooler with lines
  2. Oil collection unit
  3. Oil drip tray

17 2 012 Adapters (2 x) for connecting transmission-side oil cooler lines (1)

17 2 015 Connection for oil collection unit (2), manufacturer: Deutsche Tecalemit or

17 2 016 Connection for oil collection unit (2), manufacturer: Horn

17 2 017 Quick-release coupling (2 pieces)

17 2 018 Hose to oil drip tray (3)

17 2 019 Hose to oil collection unit (2)

Scheme 41

Scheme 41
Scheme 41

Arrangement of flushing device for transmission A4S 300J

  1. Transmission-oil cooler with lines
  2. Oil collection unit
  3. Oil drip tray

17 2 012 Adapters (2 x) for connecting transmission-side oil cooler lines (1)

17 2 015 Connection for oil collection unit (2), manufacturer: Deutsche Tecalemit or

17 2 016 Connection for oil collection unit (2), manufacturer: Horn

17 2 017 Quick-release coupling (2 pieces)

17 2 018 Hose to oil drip tray (3)

17 2 019 Hose to oil collection unit (2)

Scheme 42

Scheme 42
Scheme 42

Arrangement of flushing device for transmission A5S 440Z

  1. Transmission-oil cooler with lines
  2. Oil collection unit
  3. Oil drip tray

17 2 012 Adapters (2 x) for connecting transmission-side oil cooler lines (1)

17 2 015 Connection for oil collection unit (2), manufacturer: Deutsche Tecalemit or

17 2 016 Connection for oil collection unit (2), manufacturer: Horn

17 2 017 Quick-release coupling (2 pieces)

17 2 018 Hose to oil drip tray (3)

17 2 019 Hose to oil collection unit (2)

17 22 010 Removing and Installing/Replacing Heat Exchanger For Automatic Transmission (N52K)

IMPORTANTDanger of scalding! Only perform this work after engine has cooled down.

Necessary preliminary tasks

  1. Follow instructions for working on cooling system. See «17 00 ... Instructions For Working On Cooling System»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-instructions-for-working) .
  2. Drain coolant. See «17 00 005 Draining and Adding Coolant In Radiator (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-005-draining-and-adding)
  3. Remove fan cowl. See «17 11 035 Removing and Installing/Replacing Fan Cowl With Electric Fan (N52K)»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-11-035-removing-and-installingreplacing)

Recycling

Catch and dispose of drained coolant.

Transmission fluid emerges when oil lines are detached from heat exchanger.

Catch and dispose of escaping transmission fluid.

Observe country-specific waste-disposal regulations.

Release and disconnect coolant hoses (1).

Release screw and remove lines (2).

Installation

  1. Replace sealing rings.
  2. Tightening torque, see 17 22 1AZ in «17 22 ENGINE OIL COOLER AND LINES»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-tightening-torques-n52-n62__17-22-engine-oil-cooler-and) .

Release screws (4) and remove heat exchanger (5).

Installation

Scheme 43

Scheme 43
Scheme 43
  1. Tightening torque, see 17 22 1AZ in «17 22 ENGINE OIL COOLER AND LINES»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-tightening-torques-n52-n62__17-22-engine-oil-cooler-and) . When installing hoses, ensure ease of movement with respect to ribbed V-belt. Pay attention to routing of lines; realign retaining clamps if necessary. Tightening torque, see 17 22 1AZ in «17 22 ENGINE OIL COOLER AND LINES»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-tightening-torques-n52-n62__17-22-engine-oil-cooler-and) Add final details to vehicle.
IMPORTANTCheck fluid level in automatic transmission. Refer to MAINTENANCE AND GENERAL INFORMATION .

17 22 010 Removing and installing/replacing heat exchanger for automatic transmission (N62TU)

IMPORTANTDanger of scalding! Only perform this work after engine has cooled down.

Necessary preliminary tasks

IMPORTANTDanger of scalding! Only perform this work after engine has cooled down.

Necessary preliminary tasks

  1. Follow instructions for working on cooling system. See «17 00 ... Instructions For Working On Cooling System»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-instructions-for-working) .
  2. Drain «coolant»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-00-008-draining-and-adding) .
  3. Remove «fan cowl»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-repair-n52-n62__17-11-035-removing-and-installingreplacing) .

Recycling

Catch and dispose of drained coolant.

Transmission fluid emerges when oil lines are detached from heat exchanger.

Catch and dispose of escaping transmission fluid.

Observe country-specific waste-disposal regulations.

Release and disconnect coolant hoses (1).

Release screw and remove lines (2).

Installation

  1. Replace sealing rings.
  2. Tightening torque, see 17 22 1AZ in «17 22 ENGINE OIL COOLER AND LINES»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-tightening-torques-n52-n62__17-22-engine-oil-cooler-and) .

Release screws (4) and remove heat exchanger (5).

Installation

  1. Tightening torque, see 17 22 1AZ in «17 22 ENGINE OIL COOLER AND LINES»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-tightening-torques-n52-n62__17-22-engine-oil-cooler-and) . When installing hoses, ensure ease of movement with respect to ribbed V-belt. Pay attention to routing of lines; realign retaining clamps if necessary. Tightening torque, see 17 22 1AZ in «17 22 ENGINE OIL COOLER AND LINES»(/bmw/x5/e70-2006-2010/remont/cooling-system-mechanical/#cooling-system-tightening-torques-n52-n62__17-22-engine-oil-cooler-and) Add final details to vehicle.
IMPORTANTCheck fluid level in automatic transmission. Refer to MAINTENANCE AND GENERAL INFORMATION .

See also:
• 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT ASSEMBLY UNDERSIDE PROTECTION
• 17 22 OIL COOLER PIPES
• 11 00 670 SECURING ENGINE IN INSTALLATION POSITION (N62)
• 31 11 506 LOWERING/RAISING FRONT AXLE CARRIER (UNIVERSAL LIFTER)
• 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH LOAD UP TO DESIGN POSITION
• 32 00 601 ADJUSTING TOE-IN ON FRONT AXLE
• 17 00 COOLANT
• 31 10 010 REMOVING AND INSTALLING/REPLACING REINFORCEMENT PLATE
• 17 11 RADIATOR AND MOUNTING PARTS
• 00 2 030
• COOLING SYSTEM - OPERATING FLUIDS
• 17 0 100 TESTER
• ENGINE - TIGHTENING TORQUES
• 51 71 SEALS AND LOOSE BODY PARTS
• 32 13 006 BLEEDING POWER STEERING UNIT
• 17 10 RADIATOR, EXPANSION TANK, LINES (N62TU, N52K, M57T2)
• 17 22 ENGINE OIL COOLER AND LINES
• 51 71 099 REMOVING AND INSTALLING/REPLACING RADIATOR AIR GUIDE
• 17 2 010 SET OF ADAPTERS
• MAINTENANCE AND GENERAL INFORMATION
• 17 00 ... Instructions For Working On Cooling System
• 17 00 039 Venting Cooling System And Checking For Water Leaks (N52K)
• 17 00 009 Checking Cooling System For Water Leaks
• 17 11 035 Removing and Installing/Replacing Fan Cowl With Electric Fan (N52K)
• 17 00 005 Draining and Adding Coolant In Radiator (N52K)
• coolant
• 17 11 000 Removing and Installing Radiator (N52K)
• 17 11 370 Removing and Installing/Replacing Power Steering Cooling Coil (N62TU/N52K/M57T2)

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