M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Help: Rear brake lights, Taillights and Front Wipers not working

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Old Oct 12, 2015 | 07:37 PM
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Help: Rear brake lights, Taillights and Front Wipers not working

I am having the following problem with my 2006 ML500 I have no rear lights no brakes lights except for the centre light above the rear window. No parking or brake lights and also my front signal lights don't work. If I put on my hazards just the front ones work as well as the ones on the mirrors. The only other thing not working is my wipers or washer fluid. I am not sure if my switch on the steering wheel is gone or it might be my FRONT SAM unit. All the fuses seem to be..

Following questions:
How can I check to see if it is the SAM unit
What things does the FRONT SAM and REAR SAM unit control
How can I check to see if it is the Signal switch

Thanks for your help
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Old Oct 14, 2015 | 01:56 AM
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2008 C63, 2008 ML550, 2014 KTM 500 XC W, John Deere 990
Had similar symptoms with mine, 2008 ML550. Water leaked in through the rear light assemblies and wrecked the rear SAM. Does your fuel gauge work correctly?
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Old Oct 14, 2015 | 01:59 AM
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Originally Posted by Euler
Had similar symptoms with mine, 2008 ML550. Water leaked in through the rear light assemblies and wrecked the rear SAM. Does your fuel gauge work correctly?
Fuel gauge seems to be working fine. All other options like power doors mirrors all seem to be good as well
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