Key not working for Doors. - Mercedes-Benz Forum

 
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post #1 of 7 (permalink) Old 09-15-2006, 10:51 AM Thread Starter
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Key not working for Doors.

Hello all. I just purchased a '72 benz 280 SE and am having some trouble opening the door. The key (which looks like the Master Key and not the supplementary one) only works on the ignition and the glove box. It doesn't open the outside doors or the trunk. Thankfully the window slides down when I push it so that I could get in and out. When I asked the guy who sold it, he said that he never tried locking the doors ??? Any suggestions would be greatly appreciated. Thanks - Dan
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post #2 of 7 (permalink) Old 09-15-2006, 11:16 AM
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Without knowing which locks are original and which were replaced, it's a tough call, but you might start with a key blank and a good old-fashioned locksmith. Welcome to BenzWorld, BTW!

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post #3 of 7 (permalink) Old 09-15-2006, 11:19 AM Thread Starter
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Thanks.
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post #4 of 7 (permalink) Old 09-15-2006, 03:17 PM
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I've had similar issues with my 220SEb coupe.
If you remove the lock; there should be a code on it. You can then go to George at key-men.com and get a new key based on the code.
My first order worked great [the second set of keys I've received have issues (probably just a matter of filing the key) and I just didn't get a chance to deal with it yet.]
Hope this helps
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post #5 of 7 (permalink) Old 09-15-2006, 03:49 PM
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First,get some WD40 and with the "straw" ,squirt some oil into the door keyhole,wash out any dirt with the WD40.
Iknow some say not to do this,but i live in a hot dusty climate and it works OK for me.
Try the key again ,if it doesn't work ,i'll bet that the igniton barrel has been swapped for a used one from another car.Thats not uncommon as the keys will break off after 30+ years!.
You will need to remove the drivers door lining(CAREFULLY) ,inside the door you will see one large screw for the handle,loosen it,don't undo it fully.In the inside door Jamb,by the handle is a hole .Inside that hole you will see either another screw or a 5mm allen screw.
Remove that completely,the handle can now be "jiggled" a bit and removed.
On the handle will be a faint code number,you can order new keys from a dealer or get a couple made by your local locksmith.( not the key kiosk in the mall...they won't have blanks)
.
Just replace the handle in the reverse order to which you removed.
It will mean you have two different keys to work your car but i'ts easier than removing the instruments etc to change the ignition barrel.
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post #6 of 7 (permalink) Old 09-17-2006, 09:26 AM
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does the key turn the lock at all? if so you have a leak in the air line somwhere that controls the locks. I doubt the locks were changed for the trunk and the doors, but its possible. take your vin# to the dealer for new keys from germany.
this is pricey but keys are original.
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post #7 of 7 (permalink) Old 09-18-2006, 06:29 AM Thread Starter
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I don't believe the car has power locks. I wouldn't really know how to tell, but there are not buttons inside. The key doesn't turn at all and it seems that it is incorrect. I will most likely purchase a new key from the dealer and send the lock cylinder to locksmith to make a key. Thank you all for your detailed responses. I really apprectiate it. I didn't know that forums could be so much fun.
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