2001 Mercedes Benz C200 I keep getting

Tiny
EDX
  • MEMBER
  • 2001 MERCEDES BENZ C200
  • 96,000 MILES
For the last one week, I keep getting this door open warning even when my door is closed. This problem only affects the drivers door (which does not lock with the remote; I have to lock it manually). The central locking system works well but does not lock the driver's door. However, the remote is able to open the door. This warning signal comes back when I stop anywhere and start off again. What could be the problem?
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Monday, November 11th, 2013 AT 7:29 AM

4 Replies

Tiny
TY ANDERSON
  • EXPERT
I think what is happening here is that there is a small switch in the latching mechanism inside the driver door and this switch is no longer functioning telling the computer that the door is open. As for the door locks these locks run off of pneumatics, meaning there is a small pump that produces pressure for small hoses running from this pump to each door latch mechanism to unlock or lock each door. If any of these lines are broken or the mechanisms not longer work will prevent the door from locking or unlocking.
Just to be clear does the remote electronically unlock the all the doors? You said the remote doesn't lock the door and then said the remote opens the door?
Do you plan to diagnose this yourself?
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Monday, November 11th, 2013 AT 11:03 PM
Tiny
EDX
  • MEMBER
Thanks for the reply. And yes, the remote electronically unlocks all doors including the drivers side which does not close electronically. It also electronically locks all other doors except the drivers door. I hope to diagnose this myself and possibly get to know where the fault is so that I can plan to have it fixed at a garage. Thank you.
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Monday, November 11th, 2013 AT 11:38 PM
Tiny
TY ANDERSON
  • EXPERT
Everything you said tells me the issue is the driver door lock actuator. If the vehicle senses the door is open it will not lock the driver door, but the key fob/remote will. My bet is on the door lock actuator assembly.
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Tuesday, November 12th, 2013 AT 6:48 PM
Tiny
EDX
  • MEMBER
Thank you very much for your support. I appreciate.
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Wednesday, November 13th, 2013 AT 12:56 AM

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