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      03-17-2015, 10:58 PM   #1
tokic_o
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Fault code help: e92 M3 "increased emissions"

Hi all,

Recently got the "increased emissions" error popup on my car with the check engine light.

Ran the codes and it gave me the following:

2B59 - Coolant thermostat monitoring

2771 - Oxygen sensor dynamic diagnosis bank 1

2772 - Oxygen sensor before cat bank 2.

Anyone could help me with what the issue is thats causing this? The check engine light + increased emissions error went off after ~2-3 days and then came back on and went off again.

Thanks in advance!
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      03-17-2015, 11:09 PM   #2
Tracyis300
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It's exactly what the codes gave you. You need to change your o2 sensors
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      03-17-2015, 11:11 PM   #3
BzsBimmer
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Have you checked this thread
http://www.m3post.com/forums/showthread.php?t=928325
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      03-18-2015, 06:58 AM   #4
BKarktic3
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threw first code, had to replace thermostat a couple weeks back. 55k miles.
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      03-18-2015, 07:04 PM   #5
tokic_o
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Quote:
Originally Posted by BKarktic3 View Post
threw first code, had to replace thermostat a couple weeks back. 55k miles.
How much did it cost you?

The thermostat parts totalled to ~ $300 before the housing which is another $300

edit: without labour
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      03-18-2015, 09:08 PM   #6
BKarktic3
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Quote:
Originally Posted by tokic_o View Post
How much did it cost you?

The thermostat parts totalled to ~ $300 before the housing which is another $300

edit: without labour
had some other maint items done at the same time, but believe parts and labor were in the $800 range...
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