BMW 7 Series: Bleeding Power Steering Unit
WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin! RISK OF INJURY if oil comes into contact with eyes and skin!
IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Using contaminated equipment to add fluid may introduce dirt particles into the fluid reservoir and significantly reduce the service life of the hydraulic steering system. Do not use any filler funnels or similar! The fill level may only be checked or adjusted when the engine is stopped! The oil temperature should be approx. 20ºC here.
Ensure that the cap is fully screwed in prior to the fill level check.
NOTE: To avoid mix-ups when filling with hydraulic fluid, mark the fluid reservoir or the cap with an identification mark.
.png)
Fig. 110: Identifying Hydraulic Fluid Reservoir Cap Identification Mark
1. Thoroughly clean fluid reservoir and its immediate surroundings
2. Check and correct fill level
NOTE: The fill level is dependent on the oil temperature. Check fill level at an oil temperature between 20º and 80ºC. With engine at operating temperature do not exceed "Max. marking 80ºC" (1).
Do not drop below "Min. marking 20ºC" (2).
Hydraulic fluid: see STEERING AND WHEEL ALIGNMENT - OPERATING FLUIDS
.png)
Fig. 111: Identifying Maximum And Minimum Temperature Marking Of Fluid Level
3. Start engine.
4. Turn steering wheel left and right twice in each case up to full lock; if necessary, top up hydraulic fluid (e.g. if hydraulic system is completely drained).
5. Move steering wheel to straight-ahead position and turn off engine.
6. Check and correct fill level with engine stopped 7. Check hydraulic system for leaks.
READ NEXT:
Instructions For Removing And Installing Ear Clips
Notes
NOTE: The work steps are show on assorted components.
Ear clip must always be replaced.
To remove an ear clip, place special tool 32 1 260 at right angles to ear and
cut ear open.
Fig. 112: R
Removing And Installing Power Steering Pump For Power Steering
Gear With Active Front Steering (N63)
WARNING: DANGER OF POISONING if oil is ingested/absorbed through the
skin!
RISK OF INJURY if oil comes into contact with eyes and skin!
IMPORTANT: Adhere to the utmost cleanliness. Do not allow any d
Removing And Installing Vane Pump For Hydraulic Steering
NOTE: See procedure for POWER STEERING PUMP FOR POWER STEERING GEAR
WITH ACTIVE FRONT STEERING (N63) or POWER STEERING PUMP FOR
HYDRAULIC STEERING GEAR WITH DYNAMIC DRIVE (N63).
REMOVING AND INSTALLIN
SEE MORE:
Torque Converter Bearing, Seal
REPLACING TORQUE CONVERTER SHAFT SEAL (GA6HP26Z)
Necessary preliminary tasks
Remove AUTOMATIC TRANSMISSION
IMPORTANT: After completion of work, check TRANSMISSION OIL LEVEL.
Use only approved TRANSMISSION OIL.
Failure to comply with this instruction will result in serious damage to the
transmis
System Components
DSC Components
DSC Unit
The DSC unit on the F01/F02 essentially uses the same technology as on the
E70/E71.
Versions
The DSC unit comprises the DSC control unit and the hydraulic modulator. The
two are attached to one another
in such a way as to form a waterproof unit.
The repair kits available a
