32 13 006 Bleeding power steering (vehicles with Dynamic Drive)

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.

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 power steering system. Do not use any filler funnels or similar!

Use only Pentosin CHF11S from original containers!

The fill level may only be checked or adjusted when the engine is stopped! The fluid temperature should be approx. 20°C 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 reservoirs or their caps with identification marks.

Use only SPECIFIED OIL

Fig 1: Identifying Hydraulic Fluid Reservoir Cap Identification Mark

Courtesy of BMW OF NORTH AMERICA, INC.

Thoroughly clean fluid reservoir and its immediate surroundings
Check and correct fill level
NOTE: The fill level is dependent on the fluid temperature. Check fluid level at a fluid temperature between 20° and 80°C.

With engine at normal operating temperature do not exceed "Max. marking 80°C" (1).

Do not drop below "Min. marking 20°C" (2).

Fig 2: Identifying Maximum And Minimum Temperature Marking Of Fluid Level
Courtesy of BMW OF NORTH AMERICA, INC.
Start engine
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)
Move steering wheel to straight-ahead position and turn off 122 engine
Check and correct fill level with engine stopped
Check hydraulic system for leaks

Specified fluid: see STEERING -- OPERATING FLUIDS .

After filling:

If necessary, carry out INITIAL DYNAMIC DRIVE OPERATION