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Old 11-14-2012, 06:18 PM
event3horizon event3horizon is offline
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Location: SW Florida
 
Join Date: Nov 2012
Posts: 20
Mein Auto: 2007 328i E92
Alright but I see no codes in the check control area or anything. No check engine light. But if there are codes that can be triggered in a hidden fashion with no indication, and can only be read by a tool, then that seems pretty stupid. But just my rant.

Anyway, I did more testing and it doesn't seem to happen when a/c is off. When I switched a/c off another oddity occurred in that there is a DEEP low frequency RUMBLE that almost hurts my ears when the ac is off and I am in D or R. This goes away when the a/c is on. So bizarre.

Also I noticed when the problem happens, the car just wants to lunge forward. It almost seems like it is not caused by the engine at all but maybe transmission.

I'm a bit new to BMW and so far not impressed mechanical wise though the interior and exterior design quality in this car is world class. I've been in a few Benzes where i can neither hear the engine, nor rumbles nor vibrations. They're smooth as butter.
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