17 11 370 Removing and installing/replacing cooling loop for hydraulic steering (N55, N57 D30 U/O/T 0/1)

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WARNING: Risk of scalding!
Only perform this repair work after engine has cooled down.

IMPORTANT: When carrying out repair work on the oil and cooling circuit, protect the alternator against dirt contamination.

Cover alternator with suitable materials.

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

Necessary preliminary work:

Remove FAN COWL .

Release screws (1) on left and right from cover (3).

Tightening torque 17 10 1AZ .

Release screws (2) behind sealing lip.

Tightening torque 17 10 1AZ .

Lift out cover (3).

Fig 1: Identifying Cover, Sealing Lip And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Remove circlips (1).

Unlock lines (2) and detach from cooling loop.

Press in latch mechanisms (3) and pull cooling loop upwards.

IMPORTANT: Catch and dispose of emerging oil.

Installation note:

Reinstall circlips.

Fig 2: Identifying Circlips, Latch Mechanisms And Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Release lock (1) in direction of arrow.

Lift out oil cooling loop (2).

Fig 3: Identifying Lock And Oil Cooling Loop

Courtesy of BMW OF NORTH AMERICA, INC.

After completing this repair work, check the oil level . See 32 13 006 BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE) or 32 13 006 BLEEDING POWER STEERING UNIT in the oil reservoir of hydraulic steering.

If Dynamic Drive is fitted in the vehicle, execute start-up with a test run.

Reassemble the vehicle.

Check hydraulic steering for leak tightness.