Hello from a new W126 owner - Page 19 - Mercedes-Benz Forum
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post #181 of 240 (permalink) Old 01-28-2019, 09:03 AM Thread Starter
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Noticed a random/sporadic SRS light on the dash over the past couple of weeks. From reading, appears my first step is to remove the steering wheel and clean some contact rings with electrical cleaner. (If I'm offbase on this part, someone let me know. Thanks!)
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post #182 of 240 (permalink) Old 01-28-2019, 09:06 AM
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Originally Posted by lesguy View Post
Noticed a random/sporadic SRS light on the dash over the past couple of weeks. From reading, appears my first step is to remove the steering wheel and clean some contact rings with electrical cleaner. (If I'm offbase on this part, someone let me know. Thanks!)
I agree with this first step. Be sure to follow the manual for safe disconnection and handling of the air bag.

After long hours on a straight road, I'll get the occasional SRS light on the dash. A couple quick left and right movements of the wheel clears it. I probably need to clean my contact rings, too.

The light did stay on once. Disconnecting the battery cleared it.
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post #183 of 240 (permalink) Old 01-28-2019, 06:51 PM Thread Starter
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So I previously posted about the passenger side of my hood being slightly raised when closed. Finally did some analysis on it and turns out the passenger side hood latch was not locking. Tested by opening hood and using a long screwdriver to press down the latch part. Drivers latch locked fine but passenger side would not lock. Greasing the latch didn’t help. Removed the latch and cleaned throughly with can of brake clean. Manually Pushed the highlighted part to the left (left is the position it would be in with hood open) then pressed the latch closed, and it locked.

However, I noticed the circled part isn’t moving to the left on its own. Is it supposed to be under some sort of spring tension?
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post #184 of 240 (permalink) Old 01-29-2019, 05:16 AM
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Originally Posted by lesguy View Post
Noticed a random/sporadic SRS light on the dash over the past couple of weeks. From reading, appears my first step is to remove the steering wheel and clean some contact rings with electrical cleaner. (If I'm offbase on this part, someone let me know. Thanks!)
If you have the diagnostic connector by the battery there is a procedure on here that will narrow down the culprit by use of a home made led light. I had a SRS light and diagnosed a a faulty SRS module under the radio.
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post #185 of 240 (permalink) Old 02-02-2019, 02:31 PM Thread Starter
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SRS troubleshooting delayed due to pass side rear window regulator going kaput. Research told me it was going to be the plastic sliding jaw on the regulator arm. Local dealer had one in stock for $13 so tackled that job today(forgot to snap a pic of the finished job)
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post #186 of 240 (permalink) Old 02-03-2019, 10:08 AM
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(forgot to snap a pic of the finished job)
Yep, common failure on rear windows, good job on the fix

You don't know just how much trouble you gonna get into by not posting a "finished pic"

Some days it's just not worth chewing through the restraints
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My Stable:
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Dif-tor heh smusma
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I'm surprised that NOBODY has asked me what this is / means
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LOL
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post #187 of 240 (permalink) Old 02-06-2019, 05:57 AM
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I noticed (keeping in mind Im new to W126's) that when I sit in the drivers seat, it initially feels like Ive sat down in the seat of a city metrobus or an 18 wheeler. (springy). No sagging, and once seated, its fine. But cant say I notice it as much in the passenger seat and not at all in the rear seat. Normal?
the springs are weak after 27 or so years of use. The front left corner just broke on mine, I used S springs and the u bolt clamps from the local Ace hardware. Repairing breaks AND reinforcing the front and rear with S springs made it like a new car. I got the springs on Amazon, 2 of them for like $15 and 10 clamps for $6, a far cry from $70 plus shipping from MS.


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1991 560SEC 199 /268, 17" RS90'S, Eibach springs, Bilstein HD shocks, Custom rear sway bar, Euro Headlights, Custom ceramic coated headers and down pipes with stainless dual exhaust, W140 glass sunroof, dog ear trunk spoiler, OEM Skid Plate, Euro bumpers, wood refinish and restored.
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post #188 of 240 (permalink) Old 02-06-2019, 10:51 AM
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So I previously posted about the passenger side of my hood being slightly raised when closed. Finally did some analysis on it and turns out the passenger side hood latch was not locking. Tested by opening hood and using a long screwdriver to press down the latch part. Drivers latch locked fine but passenger side would not lock. Greasing the latch didnít help. Removed the latch and cleaned throughly with can of brake clean. Manually Pushed the highlighted part to the left (left is the position it would be in with hood open) then pressed the latch closed, and it locked.

However, I noticed the circled part isnít moving to the left on its own. Is it supposed to be under some sort of spring tension?
This is interesting. Did you compare this latch with the other side that is working? Or maybe the hood part of the latch has to go deeper into the latch to trigger the lock?
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post #189 of 240 (permalink) Old 02-06-2019, 04:02 PM Thread Starter
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Hey Luckymike.
Thanks for the reminder as I meant to update this thread. Turns out the circled part doesnt snap back fully to the left. After looking at the design, the spring return, etc, its supposed to return to the left just enough to allow the mechanism inside to secure down the latch once the latch is depressed. When I first took it out of the car, the circled part would not move to the left at all, any distance, on its own due to all of the caked up grease on the spring, inside the assembly, etc. But once I fully cleaned it well? Once I manually moved that latch to the right (the direction it would move when the hood cable would pull on it when you pulled the hood release inside the car), it would consistently release/move back to the left about 1/4 inch or so. Enough so that the assembly then consistently worked.

Pretty sure I would not have been able to fully clean that thing with it still on the car. Removal was the only way to REALLY get all of the grease/gunk out.

And no, adding shims (I previously tried that method by adding several washers under the u latch part on the hood itself) didnt work/help. Only cleaning the assembly out fixed my issue. Now after it was fixed? I did go back and add two washers for each hood U latch screw. That helped me reduce the amount of pressure I had to apply to the hood to get it to actually latch/lock down. Before that, I had to slam the hood hard, even after fixing the assembly. YOu should not have to slam the hood. Should be able to let it drop on its own from about 18 inches above the latches. Its own weight should allow the hood to lock
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post #190 of 240 (permalink) Old 02-06-2019, 04:47 PM
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Hey Lesguy!

I'm having the same issue on mine (W126, '88 300 SE except it's the driver's side the hood is propped up.
Thanks for the fix details!

Searching for Back Door w trim or JUST TRIM ... was T-Boned / Sideswiped and having challenges finding parts -
INSURANCE wants to write it off!
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