What does BMW brake pad reset failure mean?
2 Answers
BMW brake pad reset failure may be due to not replacing the brake sensor wire together. Here is the relevant introduction about BMW brake pad reset failure: BMW brake pad reset method: Insert the key; then press the start button twice (without stepping on the brake) to turn to the ON position; wait for the computer to complete self-check; simultaneously press and hold the odometer reset button and BC button on the dashboard until the maintenance reset indicator appears; use the information switch button on the turn signal lever to navigate up and down and select the maintenance item that needs to be reset; then press the BC button to display RESET, hold the BC button to complete the reset. Reasons and solutions for BMW brake pad reset failure: Generally, the brake system cannot be reset, and this situation occurs after replacing the brake pads. This is because the brake wear had already triggered an alarm before, leading to the current inability to reset. The brake sensor on the car is a one-time component. If the brake pads were not replaced in advance, the brake sensor wire also needs to be replaced together after replacing the brake pads. The solution is to replace the brake sensor wire.
Last time I went to the 4S shop for maintenance, I chatted with the technician about the issue of BMW brake pad reset failure. The main reason is that the onboard computer didn't recognize the new brake pads after replacement, possibly because the operation was performed without powering off, and the system still retained the old data. It could also be that the brake wear sensor wasn't replaced, and the wear sensing head was stuck at the threshold. When I changed the brake pads myself later, I made sure to ask the technician to use a diagnostic tool to operate in the DSC module, and before resetting, I turned off the brake wear monitoring in the settings. If manual reset with an OBD tool fails, it's most likely due to incorrect operation steps—you need to power on without ignition, press the brake pedal all the way down for 20 seconds, and then release it. Remember to check the wheel speed sensor as well; a friend's car once had interference with the reset because the sensor was too dirty.
