1991 Mercedes-Benz 420 SEL Brake Pad Replacement

1991 Mercedes-Benz 420 SEL Brake Pad Replacement

This video outlines the process involved in replacing both the rear brake pads as well as the front brake pads on a W126 series Mercedes. This vehicle is rar…

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shadowrider460 says:

Correct. Because this car has the rare ASR (traction control) option, the
rear calipers are fitted with wear sensors.

shadowrider460 says:

They are dual piston fixed calipers made by ATE.

Elysion Films says:

Do these callipers have 1 or two pistons?

Elysion Films says:

But in the video he clearly disconnects, and even talks about rear sensors.
You can see them… It seems you could be wrong.

Ivan Riesterer says:

You done a great job of that video. I have to do my W126 so will help me
heaps. ivanr1942

Joseph Daddio says:

Rear brake pads don’t have the sensors, only the front pads have the
sensor. Therefore, it is definitely one of your front sides that needs to
be replaced. The car was not ever fitted with rear sensors, only fronts.

JackpodyDK says:

I’m wondering but what sort of maintenence did you do on your old W108? I
own a 280 SE W108, 2.8l manual and I’d like to know if there’s anything
common maintenance that I need to do on these old classics.

JAMAL AL MARRI says:

The moment I saw the break pad box I noticed that W126 wasn’t one of them.
Great video.

shadowrider460 says:

I’ve never had to remove the ABS sensors, so I’m not sure what to suggest.
However, you may be able to clean just the business end of the sensor (the
magnetic part that’s near the sensor ring) without removing the sensor.
That’s usually what’s wrong. They get a buildup of crud on the business end
and can no longer sense the wheel, thereby turning on the light.

shadowrider460 says:

I’m glad it may help. Many shops get a ton of money doing brake work on
Mercedes vehicles and you don’t always know how good of a job they do or
know anything about the quality of the parts used. This entire job will end
up costing me $61.45 for all four corners using top quality PAGID brake
pads with the proper wear sensor provisions. I’m still waiting on the new
rear pads to arrive since the retailer sent the wrong part. The front pads
are working great and may reduce my brake dust issue.

Pieruccio Vitello says:

HI.I need to clean my ABS sensors.I removed the alan screw on the sensor
but could not remove the sensor.Being made out of plastic,I did not want to
force it off and risk braking it?Any suggestions on how to remove it.I dont
see any videos on hear showing how.My car is a 1989 560 SEL.Also have the
high idle issue?Thanks,Piero

benzlover55 says:

87′ 300SDL owner right here.

shadowrider460 says:

I haven’t had to do too much. The current Ford F-250 series where I renew
all the fluids with 100% synthetic ones and change plugs/cap/rotor is
largely what I’ve done thus far. I did renew all the brake pads as well,
but this work was all done before I started posting videos. Work that
remains to be done: – Repair horn ring since horn sounds constantly –
Replace points and set dwell angle (points are at low end of acceptable) –
Replace plug wires (car is hard to start in humid conditions)

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