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PeachParts Mercedes-Benz Forum (http://www.peachparts.com/shopforum/)
-   Diesel Discussion (http://www.peachparts.com/shopforum/diesel-discussion/)
-   -   obscure electrical problem on my 82 300cd (http://www.peachparts.com/shopforum/diesel-discussion/292568-obscure-electrical-problem-my-82-300cd.html)

barry123400 01-21-2011 11:43 AM
If as your daugter states the dash lights stay on with the key in the full off position odds are strong the key driven function is faulty.

funola 01-21-2011 12:02 PM
Quote:
Originally Posted by winmutt (Post 2642122)
If the key isnt turning back it is a mechanical failure not electrical...

All you need is a properly sized paper clip (the jumbo clips are just right), 10mm(?13mm) wrench/socket (it can be tight in there) and something to push the button in on the steering column. The kick panel has to be removed and pushing out the gauge cluster makes it much easier.
How about electro mechanical?;)

t walgamuth 01-21-2011 02:00 PM
Quote:
Originally Posted by Craig (Post 2642089)
I did it a year or so ago. If the key still turns, you can remove the tumbler with a paper clip and unscrew the ring around the tumbler. To remove the ignition switch assembly, you need to remove the under dash and push the cluster out. The assembly has to be disconnected from the steering column by loosening a clamp and depressing a little pin. It's pretty tight under there, but I was able to do it in about 1/2 hour. Once the assembly is removed, you can unscrew the electrical part from the main part. It's pretty obvious when you are looking at it.

Assuming the tumbler is OK, you can reinstall it in the new assembly.
Yeah, it's coming back to me. I have done it before. Reinstalling the ring at the end stymied me last time and I ended up using the car without it.;)

Stevo 01-21-2011 02:17 PM
Quote:
Originally Posted by t walgamuth (Post 2642266)
Yeah, it's coming back to me. I have done it before. Reinstalling the ring at the end stymied me last time and I ended up using the car without it.;)
LOL, Yah, that outer ring can be a real puzzle, I did a tumbler last week on a friends 240.


I used the jumbo paper clip that I filed a bevel on, (in-gauges better)

t walgamuth 01-21-2011 07:03 PM
I ordered the parts this afternoon. Phil is getting them shipped next day. So tomorrow the Lovely Mrs. W and I are heading over that way with my tools in the car.;)

neubob 01-21-2011 08:24 PM
starting the car and the cluster lights are not related. ign switch probably the problem. remove the ign sw and peen it back together and your problem should be solved.

4thesporty 01-21-2011 09:20 PM
I went through this not long ago. I got in the car at work and the key just spun. I was able to remove the tumbler, turn the switch on (with a pair of needle nose), then I removed the vacuum line to the shut off(on the IP) and jumped the terminal block to get it started and home.

My coworkers were amazed:cool:

Mine is a 126 but everything is the same except on the 123 I hear the pin to release the ignition housing is easier to access. No special tools required. Oh, and when you order the housing it comes with the electrical switch, so don't order both.

EDIT: Here is my thread:

http://www.peachparts.com/shopforum/diesel-discussion/288915-2-month-old-tumbler-broke-today.html

t walgamuth 01-21-2011 10:36 PM
Thanks everybody! Wish me luck tomorrow!

layback40 01-22-2011 03:52 AM
Good luck Tom !!
I promise to behave in OD while your gone !!! :D

t walgamuth 01-22-2011 08:33 AM
Promises promises;)

t walgamuth 01-22-2011 04:14 PM
Groannnnnn!

What a b!itch it is to work on!!!!!!!

The tumbler came apart in my hands and the plug in the back has seemingly come apart as well.


I believe I will need a tumbler now. I also wonder if the electrical switch is bad.

I think I will come back with a new tumbler next week.

Craig 01-22-2011 04:17 PM
You can drive it like that if you can remove the switch assembly and manually turn the electrical switch. The dealer can get the correct tumbler in a couple of days.

t walgamuth 01-23-2011 11:48 AM
Anybody bought a 123 tumbler lately? How much are they roughly?

Stevo 01-23-2011 11:56 AM
4
$48 is what I payed a couple weeks ago for the generic tumbler with two keys.

t walgamuth 01-23-2011 01:18 PM
Is that keyed to the chassis number?


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