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Old 10-24-2012, 03:29 PM
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nyclad nyclad is offline
Officially Welcomed to the 'Fest
Location: Orange County, CA
 
Join Date: Dec 2007
Posts: 477
Mein Auto: 2002 530i Sport
Easy DIY. This is for the Pre-Cat, which are usually the ones that fail. The o2 socket is like $1.99 at Harbor Freight.
http://forums.bimmerforums.com/forum....php?t=1725981

It took me about 20 minutes to do both of my pre-cat o2 sensors

Do remember to let your car cool off first...
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