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Old 11-28-2012, 07:16 AM
mlukas161's Avatar
mlukas161 mlukas161 is offline
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Location: WNY
Join Date: Oct 2008
Posts: 943
Mein Auto: 03 330i, 04 X3
There are 4 O2 sensors and typically only the front 2 need replacing.

I would steer clear of any cheap CVV kits on ebay. You don't want to do this job more than once. I'd stick with OEM.

Did you read up on CVV and check the suction with your oil cap off?
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