Fault code help: e92 M3 "increased emissions"

[tokic_o]

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!

[Tracyis300]

It's exactly what the codes gave you. You need to change your o2 sensors

[BzsBimmer]

oy vay


Have you checked this thread
http://www.m3post.com/forums/showthread.php?t=928325

[BKarktic3]

threw first code, had to replace thermostat a couple weeks back. 55k miles.

[tokic_o]

Originally Posted by BKarktic3

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

[BKarktic3]

Originally Posted by tokic_o

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...