RepairPal Expert Overview
The sensotronic brake control (SBC) may default to the basic hydraulic function mode.
Mercedes-Benz will notify owners of affected vehicles beginning October 21, 2004. There may be no symptoms related to this recall. However, braking operation in an emergency situation could be affected. If you don't receive notification and you feel you should have, please contact your dealer. It's helpful to have your vehicle identification number (VIN) when you call.
High mileage combined with a high number of brake actuations, or a high brake actuation frequency, can cause the pump motor of the SBC to run out of permissible tolerances. As a result, excessively high pressure may build the high pressure line of the brake system. If this occurs, the system will switch into the hydraulic function mode as designed. Sensotronic brake control is disabled when the brake system is functioning in the hydraulic mode. Dealers will inspect the SBC hydraulic unit and replace it if necessary to correct this concern. The Mercedes-Benz recall number is 2004 050014.