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Old 01-16-2013, 07:28 PM
kgorczyn kgorczyn is offline
Officially Welcomed to the 'Fest
Location: Melbourne, FL
 
Join Date: Jul 2005
Posts: 333
Mein Auto: 2000 528i SP/PP
Is It Necessary To Replace Post-Cat O2 Sensors as Prev. Maint?

I have a 2000 528i w/ 235k miles - no codes or anything. I replaced pre-cat at 100k and 200k. Post Cat are still original.

Do they affect anything other than emissions?
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