[hayko_M340]

If anyone is reading this i desperately need help. A few weeks ago I was changing horns on my 2016 340i and somehow something sparked rendering my car useless. Does not start only cranks, getting fuel no spark. Have a million codes popping up from drivetrain malfunction, chassis stabilitization, airbags, etc. If anyone has any clue what has happened please let me know. Have had many experiences with B58’s but not have seen this. If anyone has any clue what has happened or how i can fix it please let me know. Thanks!

[OzBMR]

What have you done to troubleshoot so far? Checked fuses, disconnect battery leave overnight then reconnect etc?

[240zman]

you obviously blew a fuse, check all your fuses, front and rear fuse boxes

[hayko_M340]

Originally Posted by OzBMR

What have you done to troubleshoot so far? Checked fuses, disconnect battery leave overnight then reconnect etc?

I have checked all the fuses and the car has been sitting for a week woth a disconnected battery. Tried starting today no help..same codes only cranks. All fuses and relays are good. Think i fried a ecu or dme.

[hayko_M340]

Originally Posted by OzBMR

What have you done to troubleshoot so far? Checked fuses, disconnect battery leave overnight then reconnect etc?

All the fuses are good bro..cars been disconnected for a week still no help same codes only cranks no spark. Think i mightve fried a ecu

[hayko_M340]

Originally Posted by 240zman

you obviously blew a fuse, check all your fuses, front and rear fuse boxes

All the fuses are perfect think i mightve fried my ecu.

[track.n.trail]

What exactly were you doing when the car sparked? Were you working on it with the battery still connected?