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E90/E92/E93 M3 (2008 - 2014)
4th generation E90 M3 sedan, E92 M3 coupe and E93 M3 convertible. The last of the naturally aspirated M3s, powered by a 4.0 liter V8 making 414hp and 295 lb-ft of torque.

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Old 01-04-2013, 10:25 AM
TeaRex714's Avatar
TeaRex714 TeaRex714 is offline
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Location: Houston, Texas
 
Join Date: Oct 2006
Posts: 418
Mein Auto: 2008 E90 M3
O2 Sensor thoughts?

Anyone with high-mileage experience on BMWs have any thoughts on change interval for O2 sensors? I'm at about 167K miles now and still on the original sensors. No error codes but, on my E39 before this car, my first warning was when the cats were exhausted (and that car had four cats. I could never pass inspection after that but, compared to the $4000+ to replace them, I could pay a lot of tickets for no inspection sticker...)

I see that our cars have four total (before and after the cat on each side) and they're in the neighborhood of $150 each.

Thoughts?
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2008 M3 Sedan Alpine White / Fox Red
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