00 57 072 Retrofitting supplementary oil cooler (high-speed scope option SA840) (N52K)

WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Read out fault memory of DME control unit
Switch off ignition
Remove underbody protection, see 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .
Replace front left wheel arch trim and replace dust lip
Replace front left trim grille, see 51 11 185 REMOVING AND INSTALLING/REPLACING SIDE GRILLE IN BUMPER TRIM (FROM 09/2006) .
If necessary, replace left crashbox, see 51 11 770 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT DEFORMATION ELEMENT FOR FRONT BUMPER .
Remove air filter housing, see 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N52K) .
Release servo reservoir, see 32 41 250 REMOVING AND INSTALLING/REPLACING FLUID RESERVOIR FOR POWER STEERING (M54, N46, N52) .
Remove alternator, see 12 31 020 REMOVING AND INSTALLING OR REPLACING ALTERNATOR (N52, N52K, N51, N53) .
Remove heater bulkhead, see 51 71 080 REMOVING AND INSTALLING/REPLACING HEATER BULKHEAD .
Drain coolant, see 17 00 005 Draining and adding coolant (N52K) .
Remove oil pressure switch , remove oil filter housing

Mount full-flow oil filter and connection housing for oil lines.

Installation:

Tightening torque: 11 42 3AZ, see 11 42 OIL FILTER ELEMENT WITH CONNECTIONS .

Fig 1: Locating Mount Full-Flow Oil Filter And Connection Housing For Oil Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Mount oil filter housing on crankcase.

To facilitate mounting, remove coolant connection.

Installation:

Tightening torque: 11 42 2AZ, see 11 42 OIL FILTER ELEMENT WITH CONNECTIONS .

Fig 2: Locating Mount Oil Filter Housing On Crankcase

Courtesy of BMW OF NORTH AMERICA, INC.

Mount oil pressure switch on new filter housing.

Installation:

Tightening torque 12 61 2AZ.

Fig 3: Locating Mount Oil Pressure Switch On Filter Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Mount sealing rings on oil supply and return lines.

Mount oil lines on filter housing (M8x28 screw).

Installation:

Lubricate sealing rings lightly with oil.

Tightening torque: 17 22 5AZ, see 17 22 OIL COOLER PIPES .

Secure oil lines with pre-installed rubber grommet.

Fig 4: Locating Mount Sealing Rings On Oil Supply And Return Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Remove underbody protection bracket.

Mount holding frame for engine oil cooler on crashbox.

There must be 2 press-in nuts for the radiator bracket on the crashbox, otherwise replace crashbox.

Fig 5: Locating Underbody Protection Bracket

Courtesy of BMW OF NORTH AMERICA, INC.

Mount engine oil cooler on oil cooler bracket (M8x35 screw).

Installation:

Tightening torque: 17 21 2AZ, see 17 21 ENGINE OIL COOLER .

Fig 6: Locating Mount Engine Oil Cooler On Oil Cooler Bracket (M8X35 Screw)

Courtesy of BMW OF NORTH AMERICA, INC.

Mount wheel arch cooler bracket with vibration damper (rubber element).

Installation:

Tightening torque: 17 21 3AZ, see 17 21 ENGINE OIL COOLER .

Fig 7: Mount Wheel Arch Cooler Bracket With Vibration Damper

Courtesy of BMW OF NORTH AMERICA, INC.

Mount sealing rings on oil supply and return lines.

Mount oil lines on engine oil cooler housing (M8x30 screw).

Installation:

Lubricate sealing rings lightly with oil.

Tightening torque: 17 22 5AZ, see 17 22 OIL COOLER PIPES .

Fig 8: Locating Mount Sealing Rings On Oil Supply And Return Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Mount wheel arch cover.

Mount dust lip.

Mount oil cooler protective grille in wheel arch cover.

Fig 9: Mount Wheel Arch Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Mount air duct on engine oil cooler.

Fig 10: Locating Mount Air Duct On Engine Oil Cooler

Courtesy of BMW OF NORTH AMERICA, INC.

Replace closed cover in left bumper trim with grille panel.

Fig 11: Locating Bumper Trim With Grille Panel

Courtesy of BMW OF NORTH AMERICA, INC.

Remove coolant hose between coolant pump, coolant radiator and oil-water heat exchanger.

Install coolant hose between coolant pump and coolant radiator.

Push hose onto coolant pump up to mechanical stop.

Fig 12: Locating Coolant Hose Between Coolant Pump, Coolant Radiator And Oil-Water Heat Exchanger

Courtesy of BMW OF NORTH AMERICA, INC.

Add final details to vehicle

Fill coolant and engine oil systems

Data oil fill quantity

The oil fill quantity is increased after installation of the supplementary cooler by 0.5 l.

Adapt DME data status

NOTE: Now clear the fault memory.