W164 brake lights and other ml issues.

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ridemassif

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Jun 15, 2009
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Hi All. I’m sure there are threads so any links would be helpful.
W164 ml 320 diesel 05
recently had rear Sam issues thought all sorted. About to have rear Sam reconditioned .. however third brake light works with ignition on but engine not running. it doesnt work with engine running. Also passenger side rear light cluster dim but working . Rear (5) door temperamental. Issues with fuel gauge but i suspect with Sam unit. Car does not message me rear light fault and Or third brake light fault. It doesn’t appear on diagnostic either. (Fuel gauge does hence rear Sam unit)
advice needed on wether this may be all rear Sam or wiring Or both if wiring where to start ! Advice gratefully received
 

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