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  #1  
Old 02-04-2005, 09:36 PM
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W126 turn signal switch repair

on my 85 300SD, the high beam comes on intermittently when i press the windshield washer switch. I need to remove and repair the turn signal switch assembly but can't figure out how to remove the cover over the steering column. Any suggestions?
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  #2  
Old 02-04-2005, 09:54 PM
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w126 turn signal repair

On all my 123 series chassis cars, the cover for the turn signal just pulls away, exposing the turnsignal and the cruise control switch.

2-4 screws hold the turn signal assembly on. Then you will have to unplug it under the drivers side panel. Then the switch assembly should pull free.

Peter Koskinen
peter@prkbikes.com
Chapel Hill, Nc
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  #3  
Old 02-05-2005, 10:27 AM
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I believe to get to the turn signal switch, you need to remove the steering wheel.
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  #4  
Old 02-05-2005, 04:25 PM
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Gasman, that is correct, pull the horn pad away from the wheel and it will come off, then remove bolt holding the wheel, remove wheel and the switch and wireing is exposed. This is on my 83sd, steve
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  #5  
Old 02-05-2005, 06:36 PM
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I need to do the combination switch on the SDL. I've confirmed, after two hours of troubleshooting and taking half the dash apart, that the switch is bad and will not power the washers.

Now, the SDL has the driver's airbag. Has anyone removed the airbag and the wheel from a W126? I sure don't want to experiment with that.
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  #6  
Old 02-05-2005, 08:58 PM
Brandon314159
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Remove wheel...
Take screws out

Now you have access to the combo switch. If you need any parts, let me know, I have a full setup with a bad turn signal cancel that you are welcome to rob parts off of.

Brandon
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  #7  
Old 02-05-2005, 09:26 PM
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Quote:
Originally Posted by Brandon314159
Remove wheel...
Take screws out
Airbag??????????
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  #8  
Old 02-05-2005, 09:29 PM
Brandon314159
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Does he have an airbag?
Never taken one out but unless you have some voltage floating around by the connection I think you are safe. Is it just the same as the regular one where the only thing holding the horn/center thing on is press fit?
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  #9  
Old 02-06-2005, 08:38 AM
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Brian,

There are two torx screws that hold the airbag to the wheel. I don't recall the torx size offhand but a 6mm allen will work if you are careful. Feel the back side of the wheel for the holes. Once those two torx are loose the airbad pad will come out, simply disconnect by unplugging the yellow connector. Now you can access the 10mm bolt that holds down the wheel.

Some say it is a safe idea to disconnect the battery before working on the SRS system. I have pulled the airbag without disconnecting the battery, but only once. Maybe I got lucky...I just don't know. Now I usually do disconnect the battery before digging into the system.
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  #10  
Old 02-06-2005, 09:23 AM
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Thanks Mike.

Another question concerning the wheel itself, if I may:

Since the nut is put on with an ungodly torque, should it be removed with an impact wrench? Otherwise, I envision problems with sufficient countertorque and a broken steering wheel.

Once the nut is off, does the wheel need a puller? Or will it just lift off?

Appreciate any advice if you have already done it.
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  #11  
Old 02-06-2005, 02:36 PM
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The hold down bolt isn't really torqued to an ungodly ammount, but sure seems that way. A quick blast from an impact will probably do it but I would worry about rapidly stripping the bolt. I use a breaker bar and two people. One holding the wheel the other running the breaker bar, DO NOT use the steering wheel lock to hold the wheel!

Once the bolt is removed the wheel will just lift off.
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2012 VW Jetta Sportwagon TDI...at least its a diesel

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  #12  
Old 02-06-2005, 02:38 PM
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Thanks Mike. I really appreciate it.
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  #13  
Old 02-07-2005, 10:27 AM
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Bad turn signal cancel

Is there a fix for this cancel on a 81SD?
Mine does not cancel to either direction. I remember reading a couple of years ago about fixing the turn signals when they won't stay locked but nothing on fixing the cancel. I tried to get a used unit off a car locally but the year wouldn't sell just the switch. You had to buy the whole steering column at a hefty price.
Thanks
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  #14  
Old 02-07-2005, 10:32 AM
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Quote:
Originally Posted by Fisherman
Is there a fix for this cancel on a 81SD?
These are good wrecking yard parts.
What happens is, there is this "nub" that sticks out and contacts the rotating parts of the wheel when you have either switch engaged. This nub breaks off from stress, age, whatnot and now you have no cancel.
If you were SUPER skilled you could drill into the end of the plastic, either reinstall your old piece using a small metal piece as a stablizer or just use the metal thingy sticking out as your new "nub".
I just replaced mine with a unit from the wrecking yard. Too easy not to do
Most likely the little black broken off piece comes out too when you disassemble.
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  #15  
Old 02-07-2005, 10:35 AM
Brandon314159
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Quote:
Originally Posted by MikeTangas
TI use a breaker bar and two people. One holding the wheel the other running the breaker bar, DO NOT use the steering wheel lock to hold the wheel!
I had no problem just using a 1/2 inch rachet and proper bit. Grabbed the wheel in one hand and the rachet in the other and "TWIST!"
Unlock your steering first so you don't risk destroying the lock and causing potential ingition key problems, as Mike said

This may or may not work for everyone...I have big hands
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