Mechanics

I HAVE A 330I THAT IS RUNNING ROUGH AT IDLE. WHEN I DRIVE, IT FEELS LIKE IT IS LOSING POWER. SOMETIMES THE GEARS DO NOT SHIFT WHEN SUPPOSED TO. WHEN AT A STOP LIGHT, THE RPM'S REV FROM 500-900? AND IT FEELS LIKE THE CAR IS GIVING A LITTLE GAS BY

2003 BMW 330 • 128 miles

I have a 2003 BMW 330i that is running rough at idle. When I drive, it feels like it is losing power. Sometimes the gears do not shift when supposed to. When at a stop light, the RPM's rev from 500-900? And it feels like the car is giving a little gas by itself. I replaced the sparkplugs, belts, fuel injection service, and fuel filter for over 800! I used all this money and the problem is not solved. I had the codes read and it came with about 7 codes. The mechanic said he would replace the back o2 sensors but I was under the impression that the back ones did not control how the car actually runs. Can anyone help?
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Dmcconn5
January 7, 2012.



Can you post the 7 codes? $800 is steep but dealers get big money for everything. You may be able to internet search (or run ad) in your area for local cheaper bmw home mechanic.

Tiny
Fixitmr
Jan 7, 2012.