Here I am offering a service to disable the EWS immobilizer function from the ECU (engine computer also called DME) used in BMW E39 M5, E46 M3 and E36 M3 Evo as well as the Z3M.  


Benefits and uses:
  • This is beneficial if you use your car for racing and don't want the immobilizer in the car - the engine will start and run with no EWS in the car
  • when re-using a used ECU in another car the ECU has to be made into a virgin state or the EWS has to be disable - I can turn the ECU to a virgin state if needed.
  • to repair a car with a faulty EWS unit as a replacement EWS module is very pricey from BMW and requires special tools
  • this is needed when transplanting a M3/M5 engine into a different car but other modifications are also needed so please contact me for further details
  • covers all MSS52 ECUs from BMW E39 M5 (S62B50), MSS54/MSS54HP ECUs from the BMW E46 M3 and Z3 M (S54B32) and MSS50, MSS50.1 from the E36 M3 Evo in manual and SMG and Z3M with the S50B32
  • the MSS50, MSS52 and MSS54 ECUs come in many part number, the part numbers on the picture are for illustration only as all MSS50, MSS52 and MSS54 ECUs are covered in this service
  • this is a software modification, not a hardware hack so it will never fail.
  • if the EWS module is removed or is faulty, for the starter to work, pin 1&2 need to be connected in the EWS 3 module loom, pin 1&3 need to be connected in the EWS 2 module loom and pin 7&8 need to be connected in the EWS 3D module loom
Please note that this auction is for a service to be done on the ECU you post to me, it does not include an ECU!