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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > N54 e92 335xi Replace thermostat

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      05-07-2014, 03:10 AM   #1
Drives: e92 335xi
Join Date: Nov 2012
Location: Montreal

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N54 e92 335xi Replace thermostat

i just hit 85,000 km and got the engine light, after checking the code in INPA, it was: P0128 - thermostat stuck open.

I got the new thermostat

after reading a few posts about this i found that the xDrive is slightly different. I took some pictures during the process of changing it

I couldn't get the sway bar to swing all the way down. there was 2 brackets blocking it, but i found that i could get to the thermostat without completely removing the bar. I just got the power steering hoses out of the way.

I also read on another post that removing the passenger side wheel will help a lot, so i did that and it helped to get to 2 of the hoses

the whole process took 3 hours including adding coolant and bleeding the system.

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Last edited by KTB; 05-07-2014 at 03:21 AM.
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