BMW X3 (F25) Service & Repair Manual: Electrical components

BMW X3 (F25) Service & Repair Manual / Suspension / Electrical components

Removing and installing/replacing control unit for vertical dynamic control

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks:

  • Remove ignition key.
  • Disconnect BATTERY NEGATIVE CABLE .
  • Remove FLAP IN LUGGAGE COMPARTMENT TRIM PANEL ON RIGHT .

Undo screw (1), release expanding rivets (2) and remove storage compartment.

Suspension

Unscrew nuts (1).

Unlock connector (2) and remove.

Remove control unit.

Suspension

After installation:

  • Replacement only: Carry out PROGRAMMING/ENCODING .
  • Start up the VDM with the aid of the diagnosis system.
  • Replacement only: Carry out RIDE HEIGHT ADJUSTMENT.

Replacing front ride-height sensor

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .

Release nut (1) and disconnect jointed rod (2).

Unfasten screws (2).

Remove ride-height sensor and disconnect plug connection.

Suspension

After installation:

  • Carry out RIDE-HEIGHT ADJUSTMENT (on vehicles with VDC).
  • Check HEADLIGHT SETTING , correct if necessary.

Replacing left or right wheel speed accelerator sensor

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Disconnect plug connection (1) from acceleration sensor on the spring strut.

Release screw (1) and remove sensor.

Suspension

Installation note:

Check installation position.

Fit wheel speed acceleration sensor with retaining pin (1) into bore hole on the spring strut holder!

Suspension

After installation:

  • Use the diagnosis system to perform the wheel speed accelerator sensor adjustment.

Replacing rear ride-height sensor

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .

Disconnect connector connection.

Release nut (1) and disconnect jointed rod.

Release screws (2) and remove ride-height sensor.

Suspension

After installation:

  • Check HEADLIGHT SETTING , correct if necessary.
  • Carry out RIDE-HEIGHT ADJUSTMENT (on vehicles with VDC).
Rear control and suspension elements
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Electronic damping force adjustment
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Other materials:

BMW X3 (F25) Service & Repair Manual > DTC: Tire pressure monitor system reminder
NOTE: If a tire pressure has been adjusted, or a wheel or tire has been changed or replaced, or repairs have been made to air spring suspension, the TPM system must be reinitialized. System must be reinitialized both before and after pulling a trailer. CAUTION: When driving with snow chains or ...