W211/R230 ABS/SBC Tool for Mercedes An OBD tool with a 16PIN connector that plugs into the vehicle's OBD-II communications port. Turn the ignition switch to ON; the OBD tool light will illuminate, and the device will emit a beep tone, indicating the device is functioning properly. Then, restore the maintenance mode switch (25% - 50% - 75% - 100% selectable). At this point, the BUSY indicator light will flash, and the device will emit beep tones. Data recovery completes within 10 seconds, indicated by the BUSY light. This tool is designed for W211 and R230 models equipped with ABS systems. Fault code C249F indicates that the operation time of component A7/3 (hydraulic unit) has been exceeded, suggesting an internal control unit fault. This tool allows repair without replacing the entire control module. For safety, before performing brake system maintenance on W211 (E-Class) and R230 (SL-Class) models, the Sensotronic Brake Control (SBC) system must be deactivated. Deactivation is required prior to brake pad, rotor, or fluid replacement, as the system operates under high pressure (up to 140 bars). Proper tools are essential to prevent injury and system damage. This tool provides a cost-effective, lightweight, safe, and easy-to-use alternative to the STAR-DIAGNOSIS tester for deactivating the SBC system. It performs the required functions efficiently and safely. Color: Green Material: Plastic + Electronic Components Package Contents: 1 x W211/R230 ABS/SBC Tool 1 x OBD2 Cable 1 x CD Software Note: Light reflection and display differences may cause slight variations between the item's actual color and the image. Measurement error allowance is +/- 1-3 cm.