Mercedes c180 - Merc c180 2005my nsf door locking fault

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Tue 19 Dec 2017 12:39
Mercedes c180 - Merc c180 2005my nsf door locking fault - Feersum Endjinn

Hi all hoping somebody may be able to assist.

I am in possession of a 2005 model year mercedes c180 estate with an inoperative nsf door locking motor/solenoid. as the door will not unlock Im unable to remove the door card as it is enclosed within the door slam, cutting the card will not get me very far as the door is sealed behind it with a steel plate rivetted in place. id have to cut through both! a mess i dont fancy making.additionally there is a guard over the locking mechanism preventing access from above through the drop glass aperture. so my question is to anybody with personal experience of this fault on this model if youve successfully opened the door id love to hear how!

thanks in advance.

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Tue 19 Dec 2017 19:43
Mercedes c180 - Merc c180 2005my nsf door locking fault - elekie&a/c doctor

First thing i would suggest ,is sit in the car,engine running,and cycle the dash lock/unlock switch several times .This may free off the locking unit.If this does not work,then you will need to force entry into the door by removing the door card first.It can be done with the door closed,but it is tricky. You will then have to destroy the plastic locking motor with a long driver through one of the access holes in the metal plate.Not impossible,but a real challenge.

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Wed 27 Dec 2017 12:25
Mercedes c180 - Merc c180 2005my nsf door locking fault - Feersum Endjinn

Thankyou for reply, I did indeed cycle the central locking repeatedly in hopes of freeing off the door lock but alas, the door remained deadlocked. So just in case this can help another poor soul with this issue heres how i did it.

Remove glovebox, pull ns dash end trim through cavity then removed door control unit cover trim through the same aperture, detatch door card along upper edge, detatch plastic door glass aperture surround, pull out door aperture weather strip. using a long prybar down the rearmost edge of doorcard, pry off, the door card took the abuse very well sustaining only light scuffs on rear edge. remove card, drill out rivets on metal door support plate that holds window reg in place remove drop glass, extract metal panel. pry off door lock cover and release door mechanism with a screwdriver.

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