TIPS: CODE C249F, OPERATION TIME OF COMPONENT A7/3 IS EXCEEDED ( HYDRAULIC UNIT)The above tips that show internal fault of control unit, you have to replace the control module and using W211/R230 TOOL that can be easily repaired without replace the new control module.For for Safety Precautions had stated that before attempting to repair the brake system on its models W211 (E Class) and R230 (SL Class), the Sensotronic Brake Control () system must be deactivated first using its STAR-DIAGNOSIS tester.Deactivation of the system is absolutely necessary before carrying out any maintenance work onthe brakes like changing of pads, discs and fluids because the system is under a pressure of 140 bars. Mechanics who perform brake on these car models must have the to avoid the risk of injuries to themselves and damage to the brake system.Until the introduction of this inexpensive, convenient, light, safe and easy to use tool is another alternative to the STAR-DIAGNOSIS tester when working on system. It can perform the tasks equally well which is efficient and safety.After the repair had done, the system can be activated and restore back its pressure. The memory is erased automatically.Quick, easy operations with LED indications.Safe to usePower ON when plugged into vehicle?s OBDII diagnostic connector.Light, compact and very convenient.Stand alone unit.This tool works on W211 (E-Class) and R230 (SL-Class) with systems. Tool Support Type:For BO---SCH : 0 265 960 012For --CH : 0 265 960 013For --CH : 0 265 960 015For --CH : 0 265 960 018For BO--SCH : 0 265 960 019For BO--SCH : 0 265 960 020For --CH : 0 265 960 023For BO---SCH : 0 265 960 025For BO---SCH: 0 265 960 028Colour: greenMaterial: ABSPackage Contents:1 * W211/R230 ABS/ Tool1 * OBD2 Cable1 * CD SoftwareOnly the above pa