Mercedes W211 SBC fault — Mercedes Sensotronic Brake Control fault
Mercedes diagnostic code. Below: what it means, common causes, symptoms, and the exact bench-programming fix path.
Common causes
- •Service-life counter of the SBC hydraulic unit reached (C249F / C2498)
- •Pump or pressure-supply fault (C26DE / C26BB)
- •SBC control unit fault (C14BE stored in the ESP module)
- •Loose ground wire at the SBC pump (recall 2005110001, 2003–2005 cars)
Symptoms you'll see
- •"Service Brake – Service Required" message
- •"Brake defective, stop vehicle" or "Reduced braking power" warning
- •Longer pedal travel and more pedal force in hydraulic back-up mode
The fix path
On a 2003–2006 SBC car, go to a Mercedes-Benz dealer first: the 2018 warranty extension covers the SBC hydraulic unit, its control unit and related parts for 25 years with no mileage limit. A 2007–2009 car has a conventional ABS/ESP unit, which our ABS Module Repair ($499) covers.
AML services that fix this
Mail in the affected module and we repair it on the bench: about a week on the bench (2–3 business days with rush repair). Flat pricing, flat-rate return shipping at checkout.
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Related diagnostic codes
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Text us your year/make/model + which scanner caught the code — we'll tell you exactly which module to ship and which service to pick.