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Stan
Stan, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3526
Experience:  Technical support engineer
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SIDE AND NUMBER PLATE LIGHTS COME ON OVERNIGHT.

Customer Question

SIDE AND NUMBER PLATE LIGHTS COME ON OVERNIGHT.
Submitted: 2 years ago.
Category: Mercedes
Expert:  Shantal-Mod replied 2 years ago.
Hello,
I'm Shantal and I'm a moderator for this topic.
I've been working hard to find a Professional to assist you with your question, but sometimes finding the right Professional can take a little longer than expected.
I was checking to see if you had already found your answer or if you still need assistance from one of the Professionals.
Please let me know if you wish to continue waiting or if you would like for us to close your question?
Thank you,
Shantal
Expert:  Stan replied 2 years ago.

Hello,
The lights are controlled by AAM module, depending on the light switch signal. So the problem is most likely to be caused by problem in the AAM module. Try to disconnect the battery for at least 30 minutes to reset the AAM. If this does not help, AAM module should be removed from the engine bay fusebox to check it's contacts. There might be some oxidation or moisture there, causing the sidelights to come on.

Regards,
Stan