C1401 ABS/ETS/BAS lights come on randomly - Page 29 - Mercedes-Benz Forum
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post #281 of 354 (permalink) Old 07-28-2014, 07:32 PM
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Back in business.

I got it all done, and my 3 lights are gone

I drove it without the abs motor in, and no issues at all. I didn't disconnect any lines, which is why I didn't understand the need to bleed??? Still don't.

Piece of advice to others doing this:

1) make sure the cup doesn't come out. Although I actually got mine back in in 10 minutes with the spray head trick and picture earlier. I

2) for my 2003 model, I STRONGLY recommend taking the wheel and wheel liner off for access. Much much easier than removing the sprinkler tank. I believe this might depend on your year, but I luckily stopped myself trying to get the sprinkler reservoir out and went through the "side" instead.

3) You can rent the following bearing puller in the picture from Autozone. It took a few tries, but it eventually got it out. I used a plastic end on a hammer to tap the bearing back on afterwards.

I have included a few pictures. One shows my brushes which are pretty much gone. Another is of my new brushes installed and soldered on old wire. I cut a little off my new wires.

I simply love getting rid of the 3 lights..... so worth it. Good luck
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post #282 of 354 (permalink) Old 07-30-2014, 09:22 PM
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Glad you got it done. Looks like the 2003 has none of the extra circuitry that my 2001 has:


Last edited by seth1066; 08-01-2014 at 08:27 PM. Reason: Add Photo
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post #283 of 354 (permalink) Old 08-11-2014, 08:31 AM
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Thank you so much. It worked, no more lights and now my abs pump is working great.
I tackled this DIY project on Saturday and it took me approximately 3 hours to complete (removing the bearing from the shaft was a bit challenging for me).
I decided to remove the inner wheel well to get to the pump.
Thank you very much to everyone that helped on this post.

I'm back in love with my ML55...............well, until the next problem...........lol
oh, and thanks to Brian at "Arowhead Electric Company"...
www.carbonbrush.com/Arrowhead Electric Company Main Page
brushes part #L5-5H

http://www.carbonbrush.com/

Spiros aka "1BADAMG".....

Last edited by hyprr1; 08-11-2014 at 08:36 AM.
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post #284 of 354 (permalink) Old 08-11-2014, 09:11 AM
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Originally Posted by hyprr1 View Post
I'm back in love with my ML55...............well, until the next problem...........lol
Oh so true......
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post #285 of 354 (permalink) Old 11-28-2014, 08:03 AM Thread Starter
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Smile DIY Repair Instructions on MercedesMedic.com

I started this thread a few years back and I am glad it has helped so many of you.

I wrote up the instructions on how to do this and posted them on MercedesMedic.com

All the instructions are in one page with pictures.
Thanks to some of you who were willing to let me use your pictures.

Here you go:

Mercedes-Benz Do It Yourself DIY Repairs | ABS ETS BAS 4ETS Problem DIY Repair Instructions for Mercedes Benz
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post #286 of 354 (permalink) Old 12-10-2014, 06:03 AM
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I love this forum (Throws money $$$ at the monitor). I have the same problem, i will shed the brushes first and keep you posted people.
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post #287 of 354 (permalink) Old 01-24-2015, 08:32 AM
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Quote:
Originally Posted by hilarushi View Post
First, I would like to thank everyone for their replies.

Second, I have found the problem.

As I described before the lights will come one randomly and seemed to be more related with temperature. Well in a way it was.

So I waited for the lights to come up, car warm, and then tried to manually get the ABS motor to run again by jumping the wires on relay K25. Now when the car is cold, I could hear the motor run, but this time, the car had run for 20 min, and the lights had come ON. Well, when I tried the ABS did not run this time. Once the car cooled down it started to run again. I checked the resitence at the ABS pump connector and everything was fine there.

My conclusion was that the ABS motor was acting up after it runs a few times. So I decided to pull apart the ABS motor and sure enough the brushes are almost gone.

It seems that since they were making very little contact, they would work fine when cold, but once the motor is turned a few times then they quit.

Now, I have a bad ABS pump. Since I don't want to spend $250 to rebuild it, I did some search online and found the perfect brush for the motor.

The brush that fits the motor should be 5mm by 5 mm and around 13 mm long. I found the right brush on a website called Carbonbrush out of California. The part number L5-5H and it should be material "Copper M" on their website. For only $15 and some patience I will have my ABS motor rebuilt.

And here are a few pictures to show the actual problem.





I don't know if there is a DIY on the ABS motor, but I think since this motor is so problematic on the ML there should be one.

Thanks again, and hope this helps someone.
Thank you for your incredibly helpful thumbnail pic's ,I did everything you suggested, carbon brushes from the Us. Completed the job in six hours. Could not have attempted this job without your incredible help. thanks so much my three lights only came on nine months ago, on my from new 2002 ML which I really like. from jeh Eire.
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post #288 of 354 (permalink) Old 01-31-2015, 07:06 AM
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Garage
Do you remember the part number for the brushes?
Thanks,
Ross
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post #289 of 354 (permalink) Old 01-31-2015, 09:21 AM
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Originally Posted by 1963ah3000 View Post
Do you remember the part number for the brushes?
Thanks,
Ross
Back- And Side-Shunted Brushes

p/n L5-H5
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post #290 of 354 (permalink) Old 02-08-2015, 08:10 AM
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BOOM SHOCKA LOCKA Thank you! I can't describe the gratitude I have for the ingenious individual that came up with this fix for the 3 lights of doom. Replaced the abs motor brushes yesterday and the lights went the (expletive) out immediately. I say again THANK YOU!
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