3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
I was sitting at a stop light yesterday and when the light turned green, I started to go and i heard a loud bang. It was so loud that I though I got rear ended. It wasn't a sound like the engine backfiring but it sounded like it came from under me as if something slipped when the power went to the rear wheels. Anyone have any idea what it might have been. I have a 2000 323 ci / manual tranny if that helps.
Originally posted by peterkulesza@Jul 7 2005, 03:10 PM do you have cold air intake? they do this sometimes.
No I don't but I was thinking it might be the throttle body. It happened to my buddy's 7 series and it was the throttle body. However, his is an auto and it only happened to him around 85 mph so I am still kinda puzzled.
Happened to my Pulsar/Sunny GTi once, i thought the car blew a tyre... but it was only gas that had got into the exhaust and then the car backfired and it blew flames from the exhaust.. i was frightened that i had broken something :S
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The same thing happened to me two times in the last week.
I think its tranny related...its like you are accelerating slowly then you press a little harder and you hear a bang.
I turned around both times thinking I got rear-ended too.
The car is fine otherwise...I think its just the tranny taking a mis-step, I am not worried...The stealership will not be seeing me anytime soon.
Take it too the dealer and have hem check the carrier berring on the drive shaft. Sometimes they work them selves loose. and sometimes its just a sporadic thing. But it sometimes under load torques and hits the floor board.
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