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Old 09-28-2011, 09:48 AM
HPIA4v2 HPIA4v2 is offline
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Location: washington
Join Date: Mar 2006
Posts: 2,846
Mein Auto: E60, E71, E92
Funny, just got my warning last week. iDrive was rather specific telling me the right rear light was out; checked and bulb is fine, put everything together and no warning for now.

I believe it's some sort of oxidation in the contact, on my X5 I just layer a thick high silver/tin on the contact area and no problem for years. Though I was stupid not checking for water under the batt while I was there (in case the sunroof drain is clogged).

Also I don't understang why BMW can't make the contact area gold plated, it shouldn't cost that much more to do so especially if you can pick up a few point on JD Powers ratings in the process.
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