Bleeding power steering (version with Dynamic Drive): Notes

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: 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.

Fig 1: Identifying Identification Marks On Fluid Reservoir Cap

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 Hydraulic Fluid Max And Min Level Marking
Courtesy of BMW OF NORTH AMERICA, INC.

Hydraulic fluid: see OPERATING FLUIDS
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 engine
Check and correct fill level with engine stopped
Check hydraulic system for leaks