An OBD tool with a 16PIN connector designed to interface with the vehicle's OBD-II communication port. Turn the ignition switch to ON position; the OBD tool light will illuminate, and the device will emit two beeps indicating proper operation. This tool supports maintenance mode reset functions with selectable levels (25%, 50%, 75%, 100%). During operation, the BUSY indicator light will activate and the device will beep; 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). This internal control unit fault can often be resolved using this tool without requiring replacement of the control module. For safety, it is recommended to deactivate the Sensotronic Brake Control system before performing brake system maintenance on W211 (E-Class) and R230 (SL-Class) models. System deactivation is essential prior to brake pad, rotor, or fluid service due to high pressure (up to 140 bars) in the brake system. Proper tools are required to prevent personal injury and damage to the braking system. This lightweight, safe, and easy-to-use device offers a practical alternative to the STAR-DIAGNOSIS tester for system deactivation and maintenance tasks, providing reliable and efficient performance. Color: Green Material: Plastic + Electronic Components Package Contents: 1 x W211/R230 ABS Tool 1 x OBD2 Cable 1 x CD Software Note: The package includes only the items listed above. Other accessories shown are not included. Note: Lighting effects and display settings may cause slight color variations between the product image and the actual item. Measurement error allowance is +/- 1-3 cm.