BMW ECU Programming – Plug and Play / DME MSD80 / MSD81 / N53 N54 Engine x30i x35i


MotorTronics provides a prompt replacement service for your Engine Control Unit (ECU), All ECU’s are fully programmed and Fully Plug and Play, The ECU goes through various programming stages to ensure the ECU is plug and play and ready to start the engine, and only after this we dispatch your order.

All that is left for you to do is:

  1. Click Buy it Now / Add to Cart
  2. Fill in the Order Form / Packaging Slip provided after the payment page.
  3. Send us;
    1. Damaged ECU
    2. Immobiliser Module (labelled CAS3)
    3. 1 Working key
  4. Await programming while we have your part(s)
  5. Once received simply Plug it in and turn the key.
  6. In some cases you will require diagnostics to adapt / clear codes.


This Service is suitable for you if your BMW x30i x35i  equipped with N53 or N54 engine ECU has failed, for an array of any of the problems listed below.

  • No communication with diagnostic equipment.
  • Water damage
  • Valvetronic motor fault codes even after replacing the servomotor
  • 2A67 Valvetronic, Internal fault
  • 2A63 Valvetronic, Servomotor
  • No signal on the injectors

This Service covers all programming for the replacement ECU that is synchronised to your CAS module and key,

If your module has failed give us a call / message and we should be able to provide you with a solution to get your vehicle back on the road.