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Old 09-01-2012, 06:40 AM   #3
OEM ///Member
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 22,858
My Ride: 330CiC, M5, X5, E93
OP, check the first 2 links below in my signature for more info.

I see you likely have a 4 cylinder engine, which we do not see many here in the US and my information is mainly for the 6 cylinder engines, however, the same type of problems likely impact your engine as well.

Check for cranked, broken and rotten rubber hoses and parts on your engine first, likely you will need to replace many of the hoses before you start with hard, expensive parts.
Solve your misfires, lean codes, rough idle -

Fuel pump failures -

Temp Info -

Hidden OBC Menu - Check Voltage, Temp, Fuel Level -

E46/E39 GM5 Door Lock Info -

Lower hose temp switch O-ring - BMW #13621743299
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