17 11 370 Removing and installing/replacing cooling loop for hydraulic steering (N63, N74)

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

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 tasks:

Remove A/C CONDENSER
After completing this repair work, check oil level in oil reservoir of hydraulic steering. See BLEEDING POWER STEERING UNIT - or - BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE) .

Remove circlips (1).

Unlock lines (2) and detach from cooling loop.

Press in latch mechanisms (3) and pull cooling loop together with module carrier upwards.

IMPORTANT: Catch and dispose of emerging oil.

Installation note:

Reinstall circlips.

Fig 1: Identifying Pressure Lines, Latch Mechanisms And Circlips

Courtesy of BMW OF NORTH AMERICA, INC.

Release module carrier (2) in direction of arrow.

Lift out cooling loop (1) together with module carrier (2).

Installation note:

When replacing cooling loop, remount module carrier on left and right.

Fig 2: Releasing Module Carrier

Courtesy of BMW OF NORTH AMERICA, INC.

Reassemble the vehicle.

Check hydraulic steering for leak tightness.