BMW 6HP32 Transmission fluid level procedures with Steel Oil Pan

Frequently asked questions
  • A) Transmissions fluid level checking.
  • 1) The transmission fluid temperature must be between 30°C and 35°C before checking can begin. Use test equipment to determine the trans temperature.
    2) The vehicle must be level with engine running at idle speed and air conditioning turned on.
    3) Step on the brakes firmly, apply parking brake fully and shift to D and R, briefly pausing in each position before shifting back to the Park position.
    4) With the engine running at idle speed and the selector in Park position, remove the filler plug. Monitor the transmission temperature, if a small stream of oil runs out at 40°C, the fluid level is correct.
    5) If no oil runs out when the filler plug is removed, the fluid level is too low and oil needs to be added until it overflows.
    6) With engine running, install the oil filler plug and tighten to proper torque.
  • B) Adding fluid after repairs.
  • 1) With the engine stopped and the transmission in Park position, remove the oil filler plug. Add transmission fluid until a small stream of oil runs out.
    2) Insert the filler plug and tighten by hand. Start the engine.
    3) With the engine running, remove the oil filler plug and add transmission fluid until a small stream of oil runs out. Insert the filler plug and tighten by hand.
    4) Follow the “Transmission fluid level checking” procedure described in section A) above.
  • C) Notes on fluid level and adding procedure.
  • 1) Use only ZF-LifeguardFluid6 or OE approved transmission fluid.
    2) If the transmission temperature rises above 50°C during the fluid level checking procedure the resulting oil level will be to low. Let the transmission cool down and repeat the fluid level procedure.
    3) Have transmission fluid and a suitable oil pump available before starting the fluid level procedure. The transmission fluid temperature will rise quickly during the checking procedure.
  • D) Drain and filler plug location.