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Old 11-30-2012, 05:21 AM   #6
jfoj
Registered User
 
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 10,023
My Ride: '06 330CiC, '03 M5
More info please.

Do you have snow, rain, ice?

What temps are we talking about?

You may just have a bad drivers side door lock actuator or GM5 relay that is having problems in extreme cold weather.

If you are not having problems with the passenger side under the same conditions, WD40 or other lube may not even be the solution to the root cause, again, you may have a bad drivers door lock actuator that is in need of replacement?

Even if you think moisture may be the culprit, your drivers door lock actuator or GM5 relay may be the culprit.

Suggest you check the 4th link below in my signature.
__________________
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose fan switch O-ring - BMW #13621743299
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