17 11 370 Removing and installing/replacing cooling loop for hydraulic steering (ALPINA B7 N63)

WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750i, and 2015 BMW 750Li xDrive. 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 work

Remove RADIATOR .
Remove RADIATOR for charge air cooler.
Remove AIR CONDITIONING CONDENSER

The cooling loop for the hydraulic steering is fitted at the front in the radiator package.

Fig 1: Identifying Cooling Loops For Hydraulic Steering In Radiator Package

Courtesy of BMW OF NORTH AMERICA, INC.

Remove circlips.

Unlock lines (1) and detach from cooling loop.

Installation note:

Fit the angled line at the top.

All lines must engage audibly and be secured with the circlip against slipping!

IMPORTANT: Catch and dispose of emerging oil.

Fig 2: Identifying Cooling Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 17 10 9AZ .

Feed out and remove the cooling loop.

Fig 3: Identifying Cooling Loop Mounting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Reassemble the vehicle.

AFTER COMPLETING THIS REPAIR WORK, CHECK OIL LEVEL IN OIL RESERVOIR OF HYDRAULIC STEERING .

If Dynamic Drive is fitted, execute COMMISSIONING FOR DYNAMIC DRIVE .

Check hydraulic steering for leak tightness.