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      02-05-2013, 09:20 PM   #3796
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Drives: it has 4 wheels
Join Date: Jul 2008
Location: San Francisco

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Originally Posted by blakonblak View Post
Hello Everyone,

I was hoping someone could help me out with an Pre cat O2 sensor issue im having. Dealership says my PreCat O2 sensors are damaged and need to be replaced. Quoting me $1200 for the job. I read that that Bosche O2 sensors are ~$130 online. So I am guessing the $1000 is for Labor?! Should I just go ahead and do this job myself? I heard the job is a pain.

Dealer also switched out my battery and bill is now $700, so they will be adding $1200+ to the bill with those o2s.

Also, would these be the right sensors? at
I know a guy in Campbell that can do this in his garage for waaaaay less, his screen name is MontegoChris, he did both of mine for a price so low I can't post it here
2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch