2012 ML350 Bluetec Soft brake pedal
Thread Starter
Junior Member
Joined: Aug 2017
Posts: 35
Likes: 2
From: Oregon City, OR
ML 350 Bluetec
2012 ML350 Bluetec Soft brake pedal
We have a 2012 ML350 Bluetec and when you step on the brake it seems soft. After you stop, the pedal seems to slowly continue down, but very slowly. Has anyone experienced bad master cylinders? It has 95,000 miles. We got a low brake fluid warning, but since topping up there have been no other warnings.
Todd
Todd
Senior Member
Joined: Jul 2017
Posts: 487
Likes: 114
From: DFW, TX
Ml350 bluetec
We have a 2012 ML350 Bluetec and when you step on the brake it seems soft. After you stop, the pedal seems to slowly continue down, but very slowly. Has anyone experienced bad master cylinders? It has 95,000 miles. We got a low brake fluid warning, but since topping up there have been no other warnings.
Todd
Todd
Thread Starter
Junior Member
Joined: Aug 2017
Posts: 35
Likes: 2
From: Oregon City, OR
ML 350 Bluetec
Surprisingly, not very low. I would say just below the "low" level on the reservoir. The warning has not re-appeared since filling. The vehicle does seem about due for new brake pads.
Senior Member
Joined: Jul 2017
Posts: 487
Likes: 114
From: DFW, TX
Ml350 bluetec
IMHO that is too low. Anything below "low" level on the reservoir is considered too low and you run the risk of air getting sucked in. I maintain the brakes on my vehicle myself and would refill if it gets close to the low level, certainly would not wait at all.
Out Of Control!!
Joined: Sep 2018
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Likes: 4,570
From: unbegrenzt
2017 GLE350 4MATIC
If it were mine I would replace the pads, rotors and sensors, top up the fluid and go from there. If the pedal remains soft, either flush the fluid if you are capable or take it to the dealer or Indy to have it done.
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MBWorld Fanatic!
Joined: May 2017
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From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
I had the same problem after replacing the front calipers on my FJ. Turns out the brake line had an ever so small leak. Whenever stopped at a light, the pedal very slowly started to drop and the truck would start to roll forward.
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