00 11... Checking/Topping Up Oil Level In Rear Differential

2009 BMW 535xi 4D Sedan, AutomaticSECTION 00 11... Checking/Topping Up Oil Level In Rear Differential
IMPORTANT: Risk of damage!
To avoid serious damage to the rear differential, it is essential to use only approved gear oils in the differential.

Undo oil filler plug (1).

Check oil level.

If necessary, pour in rear differential oil up to lower edge of opening for oil filler plug (1).

Fig 1: Identifying Oil Filler Plug
G04739596Courtesy of BMW OF NORTH AMERICA, INC.

Installation:Β 

  1. Oil filler plug with sealing ring:

    Replace sealing ring (1).

    Tightening torque 33 11 3AZ. .

  2. Oil filler plug with O-ring:

    Replace oil filler plug (2).

    Tightening torque 33 11 9AZ .

    Fig 2: Identifying Oil Filler Plug With Sealing Ring
    G04739597Courtesy of BMW OF NORTH AMERICA, INC.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.