BRAKE light (white) and codes - covered under extended SBC warranty?
Thread Starter
Member
Joined: May 2015
Posts: 241
Likes: 17
From: Houston, TX
2006 E55 AMG, 2018 Audi Q7, 2005 Porsche Boxster S, 1930 Model A Hot Rod, 744HP 1965 Shelby Cobra
BRAKE light (white) and codes - covered under extended SBC warranty?
I have a 2006 E55 AMG.
I got a white dash warning saying Brakes - visit workshop. I was hoping that it was something easy like pad replacement needed, but not so lucky.I hooked up the STAR and it gave me two codes -
C249E - Undervoltage supply
C2131 - Pressure reservoir faulty
With the extended warranty period that Mercedes granted, will this work be covered under that, or am I on my own for this one? If so, what needs to be replaced? Anyone know? I searched around, and it seems that the pressure reservoir replacement is pretty straight forward, although some have complained abut issues getting the codes to go away afterward. Has anyone done this and have some tips, if I have to do it? As far as the undervoltage issue, search reveals little consistent information.
Any help on all of this is greatly appreciated. Thanks!
I got a white dash warning saying Brakes - visit workshop. I was hoping that it was something easy like pad replacement needed, but not so lucky.I hooked up the STAR and it gave me two codes -
C249E - Undervoltage supply
C2131 - Pressure reservoir faulty
With the extended warranty period that Mercedes granted, will this work be covered under that, or am I on my own for this one? If so, what needs to be replaced? Anyone know? I searched around, and it seems that the pressure reservoir replacement is pretty straight forward, although some have complained abut issues getting the codes to go away afterward. Has anyone done this and have some tips, if I have to do it? As far as the undervoltage issue, search reveals little consistent information.
Any help on all of this is greatly appreciated. Thanks!
Thread Starter
Member
Joined: May 2015
Posts: 241
Likes: 17
From: Houston, TX
2006 E55 AMG, 2018 Audi Q7, 2005 Porsche Boxster S, 1930 Model A Hot Rod, 744HP 1965 Shelby Cobra
Wow, that's great news. Wonder of they'll replace the whole SBC unit or just the accumulator.
MBWorld Fanatic!
Joined: Jan 2014
Posts: 3,966
Likes: 1,315
From: Republic of Texas
'99 and '05 E55 AMG
Have the reservoir replaced under warranty. The undervoltage code should be cleared and see if it comes back; might have been caused by a failing alternator or battery or just simply disconnecting the battery...
FWIW, in my case the tech didn't realize I had a dash cam with audio in my car. The car remains powered up on a battery charger while the tech is working on the car so I had approximately six hours of video of the car in the shop. The best video was when the tech took it for a test drive to ensure the SBC repair was good. The brakes worked really well when he braked the car down from 106 miles per hour; I was impressed by the acceleration my car demonstrated.
Safe place and the car was insured so I didn't ***** about it. Sometimes a tech needs to get the chance to drive an AMG and not the **** boxes they usually are made to work on...
FWIW, in my case the tech didn't realize I had a dash cam with audio in my car. The car remains powered up on a battery charger while the tech is working on the car so I had approximately six hours of video of the car in the shop. The best video was when the tech took it for a test drive to ensure the SBC repair was good. The brakes worked really well when he braked the car down from 106 miles per hour; I was impressed by the acceleration my car demonstrated.
Safe place and the car was insured so I didn't ***** about it. Sometimes a tech needs to get the chance to drive an AMG and not the **** boxes they usually are made to work on...
Junior Member
Joined: Feb 2021
Posts: 50
Likes: 3
From: Somewhere deep in Florida
2003 E500, 52k miles
SBC Redux
So we had our SBC repaired at our nearby MB Dealership under warranty in 2021.
Everything was fine until recently where we had to stop hard suddenly due to a person crossing the road. We were cruising approximately 40mph.
Seconds later, the bright red NO BRAKES warning goes off, we pull over, turn the engine off, wait a couple minutes, restart everything back to normal.
It's as if the SBC reservoir wasn't able to recover or refill fast enough under hard and sudden braking?
We're going back to our MB Dealership who did the initial warranty repair to let them know what happened. Hopefully it's an easy fix (or part replacement?) and all will be well again. My 2003 E500 has 84k original miles and serves as my daily driver.
Everything was fine until recently where we had to stop hard suddenly due to a person crossing the road. We were cruising approximately 40mph.
Seconds later, the bright red NO BRAKES warning goes off, we pull over, turn the engine off, wait a couple minutes, restart everything back to normal.
It's as if the SBC reservoir wasn't able to recover or refill fast enough under hard and sudden braking?
We're going back to our MB Dealership who did the initial warranty repair to let them know what happened. Hopefully it's an easy fix (or part replacement?) and all will be well again. My 2003 E500 has 84k original miles and serves as my daily driver.
