[K98shooter]

Good morning, I had my 2011 335D repaired after front collision and the car runs in limp mode with following fault codes. The body shop is not BMW, but the owner is a friend of mine. We are trying to figure out the reason behind the codes. Any help would be much appreciated. Car had front bumper reinforcement, radiator, intercooler and the hood replaced, along with the hood and lights.

[Torqu3]

That first code, I refer you to this thread: http://www.e90post.com/forums/showthread.php?t=1388785


All of this stuff looks like typical CBU problems. Or it could be an issue with having the battery out and replacing a ton of stuff. Try clearing the codes and driving a bit, then see if they come back.

[335stoner]

Since this happened after a front end collision.. I would make sure all sensors are plugged in and then start looking for broken wires or a cracked intake tube.. I would not worry about #1 just yet since the car is in limp mode

[ingenieur]

Focus on faults 2,3,4 - it is an air mass issue. Check all of the air intake connections and make sure the HFM was not damaged.

[dmanb2b]

Originally Posted by ingenieur

Focus on faults 2,3,4 - it is an air mass issue. Check all of the air intake connections and make sure the HFM was not damaged.

This...especially those intercooler connections from turbo through throttle body connection.

I ended up upgrading my intercooler yesterday and mistakely left a clamp loose. Heard a loud pop on test drive with instant limp.

[335stoner]

Originally Posted by dmanb2b

Heard a loud pop on test drive with instant limp.