w124 Ignition lock problem - PeachParts Mercedes-Benz Forum

mouramen · #1 01-23-2010, 03:06 PM

Hello guys,

Today my ignition lock failed and after 10 minutes I managed to turn it to position 1 and remove the lock, bits of metal fell to the ground as it was cracked.

Now I need to order a new lock. The problem is that this is my daily driver and I need the car!!! How can I start the car with no lock?

I've got a lock and key from a w201 and they are exacly the same, but it has this bit broken (see attached), what is this bit for and can I use the lock without it?

Thanks in advance.

Aquaticedge · #2 01-23-2010, 03:42 PM

if you pulled the tumbler there should be a way to use a redneck key. AKA a flat screw driver to turn the mechanism that the key works on the back of the tumbler in the column

Billybob · #3 01-23-2010, 03:49 PM

Yes with the lock cylinder removed you should be then able turn the locking mechanism to the #1 position in order to remove the electrical connector from the rear of the locking mechanism. Then you can remove the entire locking mechanism from the steering column, with the locking mechanism removed you can access the three Philips head screws which secure the electrical portion of the ignition switch from the locking mechanism. Then you can plug the electrical connector onto the now separated electrical switch portion of the ignition lock. With that done you can use a screwdriver or similar tool to turn the ignition on and to activate the starter then drive the car.

You can also simply use a screw driver or similar tool to turn the locking mechanism with just the lock cylinder removed. The problem with this method is that you are activating both the electrical portion of the ignition lock and the steering lock mechanism at the same time. If you are driving along and because without the lock cylinder there is very little resistance to the locking mechanism inadvertently returns to the locked position, the car will shut off because of the electrical portion of the ignition switch which will be a problem, but more importantly the steering lock mechanism will engage and that can be a much more serious issue to try and remedy as your rolling along the road desperately trying to grab the screwdriver and turn the locking mechanism to unlock the steering and restart the car!

mouramen · #4 01-23-2010, 05:10 PM

What about the bit that's missing on the w201 lock?
I think it's got somethimg to do with the steering lock, if so if I use this lock I have the same problem of the steering locking while i'm driving...

mouramen · #5 01-24-2010, 10:22 AM

bump

hanno · #6 01-24-2010, 10:59 AM

Just use a screwdriver in the slot at the bottom of the tumbler's home to turn the lock. It you are concerned about it shutting off on the road, see how much detent resistance there is when shutting off with the screwdriver, make your decision or leave a short screwdriver in there while driving.