Ouch. Have you exhausted the search for a company that could repair your ECU rather than replacing it?
‘03 z4 starting issues.
- Thread starter carlsson
- Start date
Ecu repair would be cheaper compared to replacing it with a used one. If I go with the repair,I would have to ship the ecu to their site and wait for them to send it back which means more time in the shop. The warranty that this shop offer sounds good to me :wink: if anything goes wrong again, all I have to do is drive back in. They told me to bring the car back after 30 days so that they could scan everything again. The technician said the engine codes that appeared could probably be caused by the intermittent communication errors.
Sounds like decision time :wink:
Finally got my car this afternoon...starts every time and drives great. I chose a used ecu that comes with a warranty. Hopefully there won’t be any ecu issues anymore. If I only knew about this shop then all my problems would have been solved in a couple of days instead of waiting for weeks. 
Congratulations! Glad you found a solution you're happy with