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Old 10-15-2012, 08:59 PM   #12979
Beachtown Bill Collector
tock172's Avatar
Join Date: Jan 2011
Location: San Diego
Posts: 2,905
My Ride: '99 Techno Violet M3
Originally Posted by ///MPR77 View Post
Nice, O2's are on my list of preventative maintenance.

Feel any improvement?

Sent from my SAMSUNG-SGH-I727 using Bimmer App
I can't decide if I can actually feel any improvement or if it's all psychological. I feel like my idle might be improved. I did not have a CEL for them, but old ones were very burnt and discolored after 130,000 miles.

I honestly felt more improvement after I cleaned my MAF. Even saw my OBC say 18.4 MPG instead of 18.3

1999 Techno Violet Metallic BMW M3
2005 Audi B6 S4 quattro 6MT
2004 BMW 330i
1986 BMW 535i

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