Hi all,

I've got an '87 300e and my wife had to get a tow home because she couldn't get the key to turn in the ignition switch. I lubed the switch with some WD-40 and got it to turn but it is still very sticky. I'm guessing that it is time to replace the tumbler but the ******** page says that special tools and training may be required to replace the tumbler. I can't find any reference to replacing the tumbler in my MB service manual CD.

Does anyone know what is involved in replacing the tumbler? I'm quite familiar with replacing tumblers on normal keys, but of course the MB keys are like nothing I've ever worked on. The other dilema is that I'd really like to keep the original key, or at least one key for the whole car - so is there a way to modify the new tumbler to work with the old key? I've been able to do this in the past with the barrels in conventional tumblers.

Your comments are appreciated as always!

Bob Kopicki
'67 TR-4a
'76 GMC C-15
'85 XJ-6 (for sale)
'87 300e
'97 VW Cabrio

This happens to ALL W124 at some point.

The only replacement tumbler you can get is from a dealer and your dealer knows what key you have and will get you a matching tumbler. Bring your VIN and proof of ownership.

It takes a special tool to remove the tumbler, and if you have a good relationship with your dealer or independent mechanic, they can install the new part in about 30 sec.

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Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles

Use the search function as there are plenty of threads on this. You've dodged a bullet if you were able to get the key out and still can get to position and back again. I used a tool made from coat hanger wire. It takes a bit of jiggling but when you have your new tumbler in hand you can visualize what you are trying to do. As mentioned, a kind dealer may help you out but they take tremendous risk in doing so, and I can't imagine why they would. If it jams on their watch, they are out many hours of shop time.

glenmore
1991 300CE
2000 C280
1990 LS400

I did the search and found most threads concern the W123 or W126 models. I didn't find anything specific to the W124. Will I need to remove the lower dash panel and the entire switch and lock mechanism or is the 30 sec repair somehow removing the tumbler with everything in place?

BTW, I did find a tumbler at ******** AZ. Are you referring to the only [I]exact replacement being available at the dealership? Our dealer SUCKS - he's one of those every brand type of dealers and there is no loyalty regardless of the brand you own, so I know he'll do me no favors.

Thanks,

Bob

The point is, if you can still turn your key to position 1 you're in luck and it's a 30 sec. repair, if you can't turn your key at all, then it's a 3 hour plus job.

Replace the tumbler ASAP!

If you will PM me with your email address, I'll send you a Word attachment that will show you how to replace the tumbler along with a picture of a selfmade removal tool.

Dave

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1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible

I believe you will have to buy the new switch from your dealer IF you want to still use the original key. It will come with new keys and the same key will work ALL the locks on the car.

I believe if you buy elsewhere, your ignition key will then be different from the key that opens the doors, etc.

So even if your dealer sucks it's probably worth it this time.

And if you can still get your ignition key to turn to position 1, LEAVE IT THERE.

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2012 E350
2006 Callaway SC560

Bob, definitely buy the new igntion cylinder at your local MB dealer. Take your registration card to the Parts Department, or call them and fax the registration card, to prove you own the car. Also, you'll probably have to pre-pay. There are numerous threads regarding how to remove the ignition cylinder with a u-shaped wire bent to specific dimensions ... with the ends filed at an angle to release the cylinder. As mentioned, if the key will turn to Position 1 leave it there and immediately order a replacement cylinder ... takes a day or two from the dealer ... comes with one new key identical to the others for your car (assuming all existing locks are original).

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Fred Hoelzle

Hi group,

I ordered the new tumbler over the phone from my MB dealer. All he wanted was the VIN and prepay. Total was $86 with tax. I guess if I see a nicer MB down the street some day I'll get the VIN, buy a new tumbler for $86 and I'll have a key to take it home. I told you my dealer sucks! He wanted NO proof that I owned the car.

I should be getting the new tumbler on Wednesday, I'll let ya know how it goes.

Thanks for all the help!

Bob