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Discussion Starter #1
Dear B Bro,

My car shows me that message.

1. Will any electric device be out of order?

2. if not, Can I change bulk easily by myself? what is the part no?

BR
Kenny
 

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W245 Moderator
2009 C300 4MATIC
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3,302 Posts
Is the left mirror turn signal still working? It may be a loose connection or condensation.
If you can pop the mirror and inspect the unit maybe you can inspect what happened (and change the LED lamp), if not:





Some pictures with the unit on my ride (I believe it has 5 SMDs on the strip)...





 

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Discussion Starter #3
dear Samoila Stefan,

the left mirror lamp was ok suddenly. It maybe unstable weather in HK coz last week the temp decreased from 18C to 5c. The temp rises and the signal disappear

Thx a lot
I will save ur info for later reference. I think someday the lamp will be changed.
 

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W245 Moderator
2009 C300 4MATIC
Joined
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3,302 Posts
It looks it is a case of condensation there, which in time may lead to premature burning (a short of the cicuit) of the SMDs.
 
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