Breaks not working - SBC Pump failure (Part and Labor Covered by MB)
Anyway, towed it to a non dealer friend (knows MB and BMW) and said the SBC pump was leaking (Part $5-6k). I then found an old thread here not titled very intuitively where someone had a similar problem and it was the SBC pump and MB had extended the warranty on it and replace it.
I then called my friend at MB Dealer (2nd choice due to costs) and he ran my vin and said if it was the pump the warranty on them was extended to unlimited miles (other post said 100k miles). He said that due to problems with it and the cost MB decided to cover the part and labor. So I then had it towed (thanks AAA) to him at MB dealership in Henderson
They inspected it, took some pictures of it and sent to MB and they approved covering the part and labor. Part around $5,500 and another $500+ labor

Anyway I hope this post has enough key words and titled effectively for searches so if anyone else here has a similar problem they can make sure they have the dealer run their vin and see if its covered if they have a pump failure. Non dealer shops might not know about this coverage. The work has to be done at an authorized dealer I think. Also had a belt replaced and trans flush and car runs great.
Last edited by lasvegas99; Sep 17, 2010 at 02:04 PM.
From your owner's manual
Mercedes-Benz recommends that the vehicle be transported with all wheels off the ground using flatbed or appropriate wheel lift/dolly equipment. This method is preferable to other types of towing.
And, of course, it's brakes and not breaks.
Last edited by lkchris; Sep 18, 2010 at 12:56 PM.
NUTS having these fail.!

The only way long term action can be influenced is by collecting data on failures through the NTSB highway division.
Had I checked NTSB on tires I might not have had a blow out on my truck which caused over $3000 in total damage as the tire had been previously reported as having issues.
If you have SBC brakes they will fail,, when,, as the $$ guys would say, "Past results are no predictor of future results". It will happen just as the market will go up,, but who knows when?
I even called the MB customer care and they refused to help me saying that if the dealers did not find anything wrong with it, then nothing is wrong.
I feel SCARED to drive the car anymore even though I have replaced the rotors and pads just to make sure.
Does anybody know what I can do next to have MB fix the real problem since it is covered under warranty?
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I did call the MB customer care and they told me that if the MB dealer diagnosed your issue and did not find any codes (which is what the MB delaer claims) then they are not responsible to replace the SBC unit. I then asked them to provide me the contact for the District Service Manager and they refused to give that to me.
I am afraid to drive the car and wait for another failure to happen before MB can fix this issue. It is a very scary situation when the brakes completely stop working. The last time it happened, I was going 65 mph on a highway. Luckily there were few cars around me and I was able to slow down and exit off the hwy. I wish someone at MB would help me replace the SBC controller/ pump since this is a known issue.
File complaint with NTSB.
There is a 10 yr warranty unlimited miles on the SBC system. If you have the RED STOP NOW you have had a failure of the SBC unit. Flat bed the truck to a MB dealer and if you have an issue call MB direct. Use your owners manual for the ph #.
Finally stopped in Oceanside and AAA towed me to the dealer. They confirmed SBC unit failure and will cover it under the extended warranty. They didn't mention the special warranty.
Out of nowhere red message comes up saying "reduced braking pressure" followed by "increased braking effort" finished off with

Now as I go to the car and tap the brakes, the SBC unit under the hood just makes a noise for about 2 minutes then stops.
The failure of this unit is inevitable. Either sell it now or wait for it. It doesn't pick when its going to happen either. Luckily I am within the 10-year warranty replacement, so I will be flatbedding it to the dealer tomorrow.
Last edited by Dexion; Aug 7, 2011 at 07:24 PM.
Last edited by WEBSRFR; Aug 7, 2011 at 08:31 PM.
Out of nowhere red message comes up saying "reduced braking pressure" followed by "increased braking effort" finished off with

Now as I go to the car and tap the brakes, the SBC unit under the hood just makes a noise for about 2 minutes then stops.
The failure of this unit is inevitable. Either sell it now or wait for it. It doesn't pick when its going to happen either. Luckily I am within the 10-year warranty replacement, so I will be flatbedding it to the dealer tomorrow.
Number of cycles to brakes shutdown would be crazy
to design a system that way. Even the FSS tells you how many miles to change oil, so MB builds a system to shut down the brakes with NO warning. NTSB needs to know.






