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turtleturtle

2006 C4S Cabriolet: Unable to lock, Window Stays Dropped

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I recently purchased a 2006 C4S Cabriolet m/t US Model and since my ownership I have been unable to lock the car via the remote and the driver side window does not automatically fully close.  I replaced the latch assembly hoping it would knock out one or both problems but nothing has been resolved.  Fuses look ok to me. Below is further detail and Durametric codes -- is there anything in there that points to likely culprit(s)?

 

Appreciate your help!

 

Door will not lock with remote (double beep) or with key.

  • I am able to use emergency procedure to lock door (turn key three times)
  • The doors will lock if I hit the locking button inside car.
  • The remote unlocks the car fine.

Driver side window drops the 10mm or so when opening door but does not go back up upon closing door.

  • If I am in the car I can manually roll up the last 10mm and it will stay up until I touch the handle again. If the door is open and I roll up all the way it drops the 10mm instantly.
  • Passenger side works as expected.

Interior lights stay on.

 

Potentially unrelated issues/info but will mention just in case

  • Convertible top when closing will cycle through latching and never stops, but does latch but I have to let go of button.
  • Rear right window at times does not close on first try
  • Spoiler button does not do anything but spoiler can be activated w/ Durametric
  • AWS module can not be found (I disabled in other modules)
  • Aftermarket radio is installed

 

Codes on durametric
Left Door (driver side):
8026: Control unit faulty (does not clear)
8003: Door entry light ( temporarily clears)
8009: Door H. button, inner sh. stroke (temporarily clears)

C174: Fault convertible top control unit (comfort) (temporarily clears)

 

Right Door (passenger)

8003 Door entry light ( temporarily clears)

C174: Fault convertible top control unit (comfort) (temporarily clears)

 

Alarm
8004: Terminal 50 (Does not clear)
8005: Terminal S (temporarily clears)

 

Front Body Module
8021: Front luggage compartment light (does not clear, currently unplugged)

8042: Front luggage compartment unlocking (occasional)

 

Convertible Top

8041: Right rear window lifter (temporarily clears)

 

Seat Memory

C102: Single-wire operation "comfort" (does not clear)

 

Various modules: Airbag, Gateway, Instrument

C141: Communication PCM (display)

 

 

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On my 07S Cab, I had only one of the problems you listed- driver window drops about an inch but doesn’t come back up when door is closed. I had my dealer fix it. They replaced the control unit at considerable cost. They had to take the door panel off  to replace it. 

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