Ecu Reprogramming 328ci (2000)

[shaikhy]

I've been advised to reprogram the ECU on my 328Ci due to the 'thudding' sound experienced at the gearbox everytime I disengage the accelerator. My service center however warns me of the possilble burn-out of my ECU during reprogramming hence a costly replacement of the ECU itself. Is this true? Anyone has any experience on this? I'd rather live with the annoying sound...

[peterkulesza]

someone pointed out in the past that this could be a particular coupling in the drivetrain (flex disc going bad???). i do not remember specifics, i think it was one of the moderators though...

[Mach 5]

There was a TSB issued by BMW to fix this problem. On an automatic they reprogramed the transmission. While more rare on the manuals it is usually a mechanical fault and not covered by the TSB. While there is a chance that you could corupt the ECU it is a rare occurance. I have heard of 1 instance where a Shark Injector caused the ECU to corupt and the owner was then liable for the replacement of the component. If a part is damaged in the course of the repair then I would think that the stealer would need to repair the vehicle to it state prior to the work being preformed. This is just my opinion please check with you dealer.
Ben