Fix your EWS issues with this ECU. If your car wont start because you got a new key or the EWS module went bad, this is an easy plug and play solution to get your car back on the road. Works on 323 and 328 e46s


This is also a solution if the stock ECU malfunctioned and you need a new ECU and do not want to go through the expensive hassle of realigning EWS. 

With this DME/ECU you will no longer need a functioning EWS system to start your M52tu engine. That means this DME/ECU will be plug and play for any E46/E39/Z3 with an M52tu. This is also ideal for swaps into other chassis like an e30 or an e34 for example. It is a good way to work around a faulty EWS system. Also a good solution if you want to install a remote start system in your vehicle. Useful in track cars to save every bit possible and reduce electrical starting issues at the track.



Feel free to contact us if you have any questions.


This is for MS42 from these vehicles:


Z3 m52tu

E46 m52tu

E39 m52tu


The MS42 is found on most 323 and 328 E46s 1999-2000

Also on 528 E39s with the tu motor 1999-2000 and sometimes 1998

Also found on Z3 cars with an m52tu

M52tu engines


The DME is included in the price.

Always double check with current ECU