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Old 05-19-2013, 11:38 PM
Diesel911's Avatar
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Join Date: Sep 2007
Location: Long Beach,CA
Posts: 25,655
In pick I posted in #9 you can see the position My Key is in.

What I remember is when I looked with a strong Flash Light I turned the Tumbler I saw what looked like the Hole. But, it turned out to be a Roll Pin. As I turned the Tumbler further I saw the Hole it was supposed to go into.

I think if you got the Car Started at that point you miss an opertunity to pull the Steering Colum Lock.

After the Car was moved you could have left the Key in the Run Position and shut the Engine off with the Manual Shutoff and gone under the Dash Board and loosed the Clamp that holds the Steering Wheel Lock and pulled it out as much as I could to to see if you could get it out fare enough to depress the Button (the one that it sounds like you are going to have to grind off).

On mine the Afermarket Keys would not fit through the Hole in the Dash. If your Key would not fit through the Dash Board Hole you would need to Turned the Key back and pulled it out and maybe with lowering the Steering Colum removed the Steering Colum Lock.

If yo do that and you have the Ignition Switch that lockes itself to the Ignition Switch Connecto at least you have more room to deal with it but it would stll be connected to the Wires.
At that point you could do as Hunters pic shows were you cut off the 3 nub that the Ingition Swich Screws go Through. The Metal on the Steering Colum Lock is like the Metal a Carburator is made of; some what soft.

When the Steering Colum Lock is separated from the Ignition Switch Housing like that you wil be able to turn the Ingition Switch with a Screwdriver and can use your Car and deal with the Lock Tumbler issue later.

Below is what the Back of the Ignition Switch Housing looks like. In this Pic mine still has the bits of the broken Shaft in the Slots where you could use a Scredriver to turn the Switch.
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300sd ignition tumbler-back-igntion-switch-housing.jpg  
84 300D, 82 Volvo 244Gl Diesel
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Old 05-30-2013, 05:55 PM
Quirky Mercy's Avatar
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Join Date: Mar 2010
Location: S/E Mi.
Posts: 157
Thanks for all the help! I got back to working on it yesderday, success!
I was poking around in the wrong slot/hole. I used a flashlight to look in there and see the other hole. Once in the proper place it was not a bad job. I did have a little trouble getting the key out. It took me longer to get the key out than the whole tumbler out.
I called the dealer and it will take a couple days to get the new one.

Thanks again!
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Old 06-26-2013, 10:08 AM
Ryan Z's Avatar
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Join Date: Jun 2007
Location: Eastern Pa
Posts: 264
While everyone has locks on their minds........
Many years ago I changed the entire lock assembly. Now it's starting to hang up. Would like to just change out the tumbler assembly. Can I just take the dash cover plate off, use the "clip", and unscrew the black cover?
1984 MB 300SD Turbo
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Old 06-26-2013, 04:54 PM
Join Date: Oct 2012
Location: Austin,Texas
Posts: 54
Yes, you can just swap the tumbler assembly.

I just did :-)

If the key turns to the ACC position and you can get the paper clip, or jewelers
screwdriver into the release hole, then you can spin the un-spin the shroud and
pull the tumbler out.

$55, the registration, and photo ID, to my local Mercedes and I had the new
tumbler the next day.

BTW, The old tumbler used a jewelers screw driver to compress the locking dog,
while the new tumbler wouldn't work with a screw driver at all, but worked just fine
with a paper clip. I tried for days to get the old one out with a paper clip wire
with no luck. The first time I used a screw driver it worked instantly. So the
big question is: are there 2 types of manufacturers of tumblers and do they make
them slightly different?

Will W - 1984 300SD federal
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Old 06-28-2013, 04:09 PM
Ryan Z's Avatar
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Join Date: Jun 2007
Location: Eastern Pa
Posts: 264
Went to MB dealer today and ordered tumbler.

Creeps charged $74.

Must be a special East Coast version.
1984 MB 300SD Turbo
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