An OBD tool with a 16PIN connector designed to interface with the vehicle's OBD-II communications port. Turn the ignition switch to ON; the OBD tool indicator light will illuminate, and the device will emit two beeps, indicating proper operation. This tool allows restoration of the maintenance mode switch with settings available at 25%, 50%, 75%, and 100%. During operation, the BUSY indicator light will activate, and the device will emit ble tones. Data recovery completes within 10 seconds while the BUSY indicator is active. Compatible with W211 and R230 models equipped with ABS systems. Addresses repair code C249F related to exceeded operation time of component A7/3 (hydraulic unit), indicating an internal control unit fault. This tool enables repair without requiring replacement of the control module. For safety, it is essential to deactivate the Sensotronic Brake Control system before performing brake system maintenance on W211 (E-Class) and R230 (SL-Class) models. System deactivation is required prior to brake pad, rotor, or fluid service due to high pressure (up to 140 bars) in the brake system. Proper tools must be used to prevent personal injury or damage to the brake system. This lightweight, safe, and easy-to-use tool offers a convenient alternative to the STAR-DIAGNOSIS tester for servicing the Sensotronic Brake Control system, providing efficient and reliable performance. Color: Green Material: Plastic + Electronic Components Package Contents: 1 x W211/R230 ABS Tool 1 x OBD2 Cable 1 x CD Software Note: Light reflection and display differences may cause slight variations between the item color shown in the image and the actual product. Measurement tolerance: +/- 1-3 cm.