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  #1  
Old 08-23-2006, 10:22 PM
300SD81's Avatar
1981 Mercedes-Benz 300SD
 
Join Date: Aug 2006
Location: University of Georgia
Posts: 1,082
Anoter Problem! :( - Cannot turn ignition!

After turning off my car today, I can't turn it back on. I read the posts about using a vibrating sander to shake it from behind the instrument panel, but the closest thing I have to that is a pretty powerful vibrating massager, which didn't help. It seems to be the thing that locks the steering wheel and not the lock itself. The only thing I can think ofnow is taking it to a repair plce, but I really don't want to have to spend that money! I bought the car for $200 + $100 fees, and have already spent more than half that in the week I've had it!

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  #2  
Old 08-23-2006, 10:31 PM
bgkast's Avatar
Rollin' on 16s
 
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Wiggle, wiggle, curse, and wiggle some more. If you get it free leave it in position 1 and remove the tumbler using a paper clip as a release too. (there are some good threads about this on the board here). If hours of wiggling fail, try this: http://www.dieselgiant.com/repairignitionlock.htm
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  #3  
Old 08-23-2006, 10:41 PM
d.delano's Avatar
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You must try a little harder and get a palm sander and try to jiggle the key to position 1. You must then get a large paper clip and insert into the hole in the side of the silver part of the ignition so that you can unscrew the black ring around it. If you cannot do this, you will have to pay a locksmith big big money to drill the lock out. These MB locks aren't exactly made out of cheese. They are extremely tough.
I think there was a member who had no choice in the matter, and managed to beat the system anyway. He drilled the steering lock pin from underneath, enabling his wheel to turn. I don't know if this will solve your ignition tumbler issue however.
If you got the car for only $300, you'll still be ahead of the game for the time being even if you have to get professional help. The purchase price pales in comparison to what you will most definitely be putting into it whether you like it or not, that is if you keep it. There is nothing more expensive than a cheap MB, and that's exactly what you got. Hate to bust your bubble but that's the way it goes.
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  #4  
Old 08-23-2006, 10:52 PM
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MB will charge you...if they will even work on it, that is....about $500.00.
They will instal a new tumbler/lock assembley/key/electrical switch.

You can do it yourself for about $100.00.


.
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  #5  
Old 08-23-2006, 10:57 PM
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1981 Mercedes-Benz 300SD
 
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I really love this car, but if its going to cost me that much, its probably going to spend the next 4 or 5 years sitting in my garage... No fun being an unemployed highschool student
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  #6  
Old 08-24-2006, 06:28 AM
Grrrmachine's Avatar
'78 W123 200D Manual
 
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Location: Warsaw, Poland
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I've had this too (Last night, in fact) - wiggle wiggle, proper English expletives, wiggle, mole grips, more English words, exasperated sigh, key out, lips on the hole, great lungful of air, BLOW, repeat, key in, one twist, off she goes....

Sometimes they just need the kiss of life

Last edited by Grrrmachine; 08-24-2006 at 06:38 AM.
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  #7  
Old 08-24-2006, 07:24 AM
Slow Attack Submarines
 
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some graphite-based lubricant might help as well

you can grind down the pin and pull the assembly (diesel giant's tutorial) for the cost of a grinding drill bit ($5) assuming you already have a drill and then start the car with a screwdriver if you're really that adverse to spending money. you should expect a $300 car to have some issues.
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  #8  
Old 08-24-2006, 09:20 AM
Banned
 
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Quote:
Originally Posted by 300SD81 View Post
I really love this car, but if its going to cost me that much, its probably going to spend the next 4 or 5 years sitting in my garage... No fun being an unemployed highschool student
Most of these fellows have owned the vehicle for awhile and are familiar with the "quirk" of this system, so, they have not mentioned it.

When the steering lock is engaged, the steering will frequently put pressure on the lock.........so..........turning the key is impossible because the key has no leverage to pull the locking pin out of the steering column.

We all have this technique........which is basically done without thinking.......to take the tension off the locking pin by attempting to turn the wheel slightly.......just a bit of pressure one way or the other (you don't know which side)........while simultaneously attempting to turn the key.

It's all done in one motion.........a bit of pressure on the wheel in one direction and attempt to turn the key.......if it doesn't go......repeat with pressure in the opposite direction.......to unload the lock and allow the cylinder to turn.

This may be your issue.......instead of the dreaded failed cylinder.
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  #9  
Old 08-24-2006, 09:23 AM
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Quote:
Originally Posted by Grrrmachine View Post
I've had this too (Last night, in fact) - wiggle wiggle, proper English expletives, wiggle, mole grips, more English words, exasperated sigh, key out, lips on the hole, great lungful of air, BLOW, repeat, key in, one twist, off she goes....

Sometimes they just need the kiss of life
You've beat the bear one time.

If you've got any sense........you won't tempt fate another time and replace the lock cylinder immediately.
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  #10  
Old 08-24-2006, 11:36 AM
Professional smart ass
 
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Same thing happened on my brothers 240d. We took a grinding wheel to the wheel lock rod. Happened on the side of the street, so we had to bring along a little honda generator. Boy did we get some strange looks with that generator running and sparks bouncing all over the inside of the car...
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  #11  
Old 08-24-2006, 12:45 PM
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'78 W123 200D Manual
 
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Quote:
Originally Posted by Brian Carlton View Post
You've beat the bear one time.

If you've got any sense........you won't tempt fate another time and replace the lock cylinder immediately.
If I thought it was anything other than a sticky tumbler, you're right. But in this situation it's simply another symptom of a car thats been sat still for a lomg long time, and which will now be stripped for spares.
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  #12  
Old 08-24-2006, 02:10 PM
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Quote:
Originally Posted by Grrrmachine View Post
If I thought it was anything other than a sticky tumbler, you're right. But in this situation it's simply another symptom of a car thats been sat still for a lomg long time, and which will now be stripped for spares.

Still probably a good idea to just remove the tumbler and start the car with a screwdriver for however long you will still need to. If you can get it to turn to position 1 just one more time, its a breeze to pull out.
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  #13  
Old 08-24-2006, 04:19 PM
300SD81's Avatar
1981 Mercedes-Benz 300SD
 
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Location: University of Georgia
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I took off the steering wheel and managed to get the lock assembly removed. I cant seem to get the wire plug on the back disconncted though. It is locked on or something? I still can't get the key o turn no matter what I do.

EDIT:
I got it out after turning it and hitting it with a hammer a few times, and removed the wire and the little thing the key goes into. Both seem to be going bad Where would I get a new assembly that will match my key?

Last edited by 300SD81; 08-24-2006 at 04:45 PM.
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  #14  
Old 08-24-2006, 08:30 PM
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Quote:
Originally Posted by Brian Carlton View Post
You've beat the bear one time.

If you've got any sense........you won't tempt fate another time and replace the lock cylinder immediately.
That's what my mechanic just told me. I know this is DIY-land, but since this is my first MB I wanted an expert to give it the once over.

Mike
Tucson AZ
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  #15  
Old 08-24-2006, 08:46 PM
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Quote:
Originally Posted by Lambrettaman View Post
That's what my mechanic just told me. I know this is DIY-land, but since this is my first MB I wanted an expert to give it the once over.
WE are the experts.

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