An OBD tool with a 16PIN connector designed to plug into the vehicle's OBD-II communication port. Turn the ignition switch to ON; the OBD tool light will illuminate, and the device will emit two beeps, indicating proper operation. The maintenance mode switch can be restored (25% - 50% - 75% - 100% selectable), during which the BUSY indicator light will flash and the device will emit beeps. 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). This internal control unit fault typically requires module replacement; however, 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 essential prior to brake pad, disc, or fluid replacement due to high pressure (140 bars) in the system. Proper tools are required to prevent personal injury and brake system damage.This tool provides a cost-effective, lightweight, safe, and easy-to-use alternative to STAR-DIAGNOSIS testers for deactivating the system, performing tasks efficiently and safely.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. Other products are not included. Note: Lighting and display differences may cause slight variations in color representation. Measurement error allowance is +/- 1-3 cm.