Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
This can be due to a fault with the switch that switches from low to high beam as I have seen fail before in the past needing replaced.I have also seen issues with a low beam control relay as well.If you have a multi meter or test light to test electrical with I can try and walk you through some testing to see if we can pinpoint the fault just let me know.If you do not then the low beam circuit needs tested to see if this is a relay or control unit/ecu fault or the light dimmer switch itself.
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