Features: 1.Code C249F, if the running time of component A7/3 exceeds (SBC hydraulic device), it means that there is an internal failure of the control unit, and the SBC control module needs to be replaced. 2.The repair is relatively simple, you can use the W211/R230 TOOL to repair, no need to replace a new control module. 3.Before performing any maintenance work on the brakes (such as changing brake pads, brake discs and brake fluid), it is necessary to deactivate the SBC system. 4.The mechanics who perform braking services on these models must have the appropriate tools to avoid the risk of personal injury and damage to the braking system. 5.Before launching this cheap, convenient, light, safe and easy-to-use SBC tool, it was another alternative to the STAR-DIAGNOSIS tester when working on SBC systems. It can perform tasks equally well, efficiently and safely. 6.This SBC tool is suitable for W211 (E-level) and R230 (SL-level) with SBC system. It can be operated quickly and easily through LED instructions, and it can also ensure safe use. 7.The OBDII diagnostic connector that turns on the power when plugged into the vehicle is light, compact and very convenient, and it is an independent unit. Specification: Item Type: SBC Repairing Tool_x000D_ Material: ABS_x000D_ Voltage: 12-24V_x000D_ Fitment:_x000D_ Replacement for BENZ SBC W211 OBD2