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Pete
Pete, Car Enthusiast
Category: UK Car
Satisfied Customers: 26253
Experience:  Over 17 years experience diagnosing and repairing automobiles.
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Mercedes W204 I have a Mercedes 2012 C 180 CDI model. 1.

Customer Question

Mercedes W204I have a Mercedes 2012 C 180 CDI model.1. Lock on drivers door does not lock or open. Have to use emergency key.
2. Left turning light works but clicking sound is faster than normal. Like a defect bulb on earlier models.
3. HOLD function does not work.
4. All of the controls on drivers doorpanel are dead (windows, mirrors etc.). Nothing works here.
5. HELP!!!!!Best regards
Per Birkeland***@******.***
JA: Where exactly do you think the noise is coming from? And how long has this been going on?
Customer: Noise?
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Mercedes W204I have a Mercedes 2012 C 180 CDI model.1. Lock on drivers door does not lock or open. Have to use emergency key.
2. Left turning light works but clicking sound is faster than normal. Like a defect bulb on earlier models.
3. HOLD function does not work.
4. All of the controls on drivers doorpanel are dead (windows, mirrors etc.). Nothing works here.
5. HELP!!!!!Best regards
Per Birkeland***@******.***
JA: Anything else you think the mechanic should know?
Customer: Nope
Submitted: 7 months ago.
Category: UK Car
Expert:  Pete replied 7 months ago.

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.My info is somewhat limited on your model here but I had seen no one else has responded and would like to see if I can help here.If at any time you feel that I cannot help with this please let me know.

From what you have described here this sounds like an internal electrical fault with a control unit/ecu.I have seen issues with body computers like front or rear sam control units that can fail or act up in some cases and cause this issue here.If you have not had the fault codes checked using a fully compatible scan tool to see what codes are set this needs done.Any codes set need diagnosed to locate and repair this issue here.Having the codes checked will help in locating which component is at fault here.I suspect an ecu fault needing replaced.

Make sure all fuses are o.k. as well in all fuse panels in case this is just a blown fuse.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

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