Do You Need to Replace the Warning Wire When Changing Brake Pads on a Mercedes?
1 Answers
When changing brake pads on a Mercedes, it is necessary to replace the warning wire. Brake Pad Warning: The warning wire is inserted into the brake pad. If the brake pad wears excessively, the sensor wire will come into contact with the brake disc or wear out, causing a change in resistance. This generates an electrical current, which is detected as a signal, triggering the brake pad warning light on the dashboard. The illumination of the brake pad wear indicator light may indicate severe brake pad wear, requiring prompt inspection and replacement at a service center. It could also be due to low brake fluid levels, as insufficient brake fluid reduces braking force and, in severe cases, may lead to brake failure. In such cases, the brake fluid needs to be replenished promptly. Other possible causes include brake system oil leaks or false alarms, which require thorough troubleshooting. Resetting the Brake Pad Warning Light: First, enter the driver's seat. Without pressing the brake pedal, press the start button once to illuminate all dashboard lights. Then, hold down the reset button located at the top left of the dashboard for about 8 seconds, release it, and press it again. The illumination of the brake pad wear indicator light may indicate severe brake pad wear, necessitating timely inspection and replacement.
