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32 13 006 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. 20 °C here.
Ensure that the lid is fully screwed in for the fluid level check.
NOTE: To avoid mix-ups when filling with hydraulic fluid, mark the fluid reservoir or the cap with an identification mark.

CHF Pentosin CHF11S

Fig 1: Fluid Reservoir Marking
G09955353Courtesy of BMW OF NORTH AMERICA, INC.
  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 20 ° and 80 °C.

    With engine at operating temperature do not exceed "Maximum marking" (1).

    Fig 2: Oil Temperature Level
    G09955354Courtesy of BMW OF NORTH AMERICA, INC.

    Do not drop below "Minimum marking" (2)!

    Hydraulic fluid: BMW Service Operating Fluids .

  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 fluid level with engine stopped.
  7. Check hydraulic system for leak tightness.