For Mercedes Benz's 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 (SBC) system must be deactivated first using its STAR-DIAGNOSIS tester.
Deactivation of the SBC 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 services on these car models must have the proper tools 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 SBC tool is another alternative to the STAR-DIAGNOSIS tester when working on SBC system.