Engine control unit MERCEDES BENZ CLS 320 2005

OEM: A6421505979-1

Disassembled car photo

Engine running

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  • Guaranteed quality
  • Fast delivery 3–7 days
  • 14-day returns

What is this part and why does it matter?

The engine control unit (ECU) is the central computer managing engine operation — fuel injection, ignition timing, emissions control, and more — based on data from numerous sensors.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

  • Engine won’t start or runs very poorly
  • Multiple, seemingly unrelated engine-related faults appearing together
  • Check Engine light constantly on with numerous fault codes

Installation information

Mounted in the engine bay, connecting to the extensive engine wiring harness — requires specialist programming/coding to match the specific vehicle and, often, the immobiliser system.

Donor vehicle description

VIN
WDD2193221A060195
Make, model
MERCEDES BENZ CLS 320
Year
2005
Engine
Diesel 3.0L 165KW - OM642
Transmission
Automatic - D722902
Drive
HECK
Equipment
LHD
Colour
197 (OBSIDIANSCHWARZ - METALLICLACK)

291 parts from this car

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  • Internal fastening of the door handle MERCEDES BENZ CLS 320 2005
  • Car part MERCEDES BENZ CLS 320 2005
  • Rear left door control unit MERCEDES BENZ CLS 320 2005
  • Front left door control unit MERCEDES BENZ CLS 320 2005
  • Internal fastening of the door handle MERCEDES BENZ CLS 320 2005
  • Door elastic MERCEDES BENZ CLS 320 2005
  • Door elastic MERCEDES BENZ CLS 320 2005
  • Internal door plastic MERCEDES BENZ CLS 320 2005

Frequently asked questions

The ECU needs to be correctly programmed with software matching the exact vehicle, engine variant, and often synchronised with the immobiliser system — this typically requires specialist diagnostic equipment and expertise.

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