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Mercedes MR-PLD PLD Actros, Axor, Atego, Vario, Solo Repair Service Euro 4+5

Description

Known as Mercedes MR-PLD, Mercedes PLD, MR units, OM904 ECU and OM906 ECU, these ECUs are fairly problematic. Fitted to all kinds of vehicles, from a 1998 Mercedes Vario, through the range of Mercedes trucks, and from an Optare Solo to a Neoplan Skyliner up to a 2013 Optare Versa.

Usual faults we see include:

  • Fault Code 4024 – Auxiliary controller defective
  • Fault Code 4038 – Starter Control
  • Fault Code 4039 – Starter Control
  • MIL Illuminated for no reason
  • Misfire on one bank of cylinders, Fault code indicating short to ground for said bank
  • Cutting out when warm
  • None start
  • Starter motor fault
  • CAN Communication faults
  • Broken sockets
  • Corrosion
  • Immobiliser Issues

We offer a full test and repair service on the Mercedes MR-PLD engine ECU, and can usually offer a CLONED exchange unit if yours is not repairable. For Non-Immobilised vehicles such as Optare Solo we can supply upfront.

These units can have a number of part numbers, for example:

Part Number Engine Emissions Level
A0644478540 OM906LA Euro 4
A0004462340 OM904LA Euro 2
A0104460440 OM501LA Euro 2
A0004462240 OM904LA Euro 2
A0104460540 OM501LA Euro 2
A0104461740 OM501LA Euro 2
A0104461240 OM501LA Euro 2
A0004462540 OM904LA Euro 2
A0604470140 OM906LA Euro 2
A0104463140 OM501LA Euro 2
A0594478140 M906LAG 5 (CNG)
A0004467840 OM904LA Euro 3

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