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:
Front Lumbar Support
Using lumbar support, the backrest can be individually adapted to the spinal
column and thus ensures relaxed
driving. Lumbar support is a standard feature in the multifunction seat.
The button for the lumbar support adjustment is located on the side of the front
seat and is connected via the
LIN
Corrosion Protection
NOTE: Following repairs, the corrosion protection work already begins with
the correct
removal of the PVC undercoating, anti-drumming layer and seam seals.
The PRODUCTS RECOMMENDED by BMW are optimized with regard to
corrosion protection.
1.0 Removing and applying sealing materials
1.1 Removing sea
