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Discussion Starter #1 (Edited)
I'm having crazy headlight / turn signal issues and i believe I need a new Light Control module. I just got his car 2003 330i and it has xenon headlights. They might be aftermarket

When i took the moulding off and got down to the LCM it was missing a screw which leaves me to believe someone has been in here and messed with this, or possibly replaced it. (i have no history on this car). There is no tamper light on though so I'm guessing it's coded to the car.

I was going to just replace it with the same part number but im wondering it the wrong unit is in there and that may be the problem.

So my question is - how do I know what LCM I need? Cant seem to find a clear answer
 
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