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Relay assignment, engine wiring harness on engines BMW M40, M42, M43, M43TU, M44, M50, M52, M52TU, S52, S50US

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Before removing the relays:
Read fault memory of DME control unit.
Switch off ignition.

Unfasten and remove cover.

Installation location:

  1. Relay for oxygen-sensor heating
  2. Master relay for Digital Motor Electronics (DME)
  3. Relay for electric fuel pump (EKP)

Installation:

Read fault memory of DME control unit, check faults in memory, then cancel fault memory.


This post was last modified on July 26, 2017 8:15 am

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