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 indicator light will illuminate and emit two beeps, indicating the device is functioning properly. This tool supports resetting the maintenance mode switch with selectable levels (25%, 50%, 75%, 100%). During reset, the BUSY indicator light will activate and the device will emit beep tones. Data recovery completes within 10 seconds, indicated by the BUSY light. 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 allows repair without replacing the control module. For safety, deactivate the Sensotronic Brake Control system using a diagnostic tester before performing brake system maintenance on W211 (E-Class) and R230 (SL-Class) models. System deactivation is required before pad, disc, or fluid replacement due to high pressure (140 bars) in the brake system. Proper tools are essential to prevent injury and system damage. This tool offers a cost-effective, lightweight, safe, and user-friendly alternative to STAR DIAGNOSIS testers for system deactivation and maintenance tasks, providing reliable and safe operation. 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 products are not included. Note: Lighting and display differences may cause slight color variations between the product image and actual item. Measurement error allowance is +/- 1-3 cm.