BMW X3 Service & Repair Manual: Preheating relay

REPLACING PREHEATING CONTROL UNIT (N47D20 O1)

Necessary preliminary tasks:

  • Switch off ignition.
  • Remove INTAKE SILENCER HOUSING .

Release positive battery cable (1) from clamp.

Release expanding rivets (2).

Remove rear acoustic cover (3).

Electrical

Detach connector (1) from preheating control unit.

Release screw (2).

Remove preheating control unit (3).

Electrical

NOTE: If the preheating control unit is replaced, the preheating control service function must be performed using the diagnosis system after it is replaced.

Installation note: Assemble engine.

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