Does Mercedes-Benz need to match when replacing the door oil suction pump?

Need. You need to use a Mercedes diagnostic computer. The diagnostic computer enters the interface of the engine computer module, and selects "Tuning", then "Learning" and then "Throttle Matching". Then, turn off and turn on the ignition switch according to the prompt of the diagnosis computer. The matching process will not take more than two minutes. After the match is successful, the computer will show that the throttle has been learned successfully.

Working principle of door pump

Under different circumstances, the door control system drives the door pump solenoid valve through different trigger sources to control the door opening and closing. For example, when the hand brake is released, the door controller receives the hand brake signal and outputs a driving signal to close all passenger doors and luggage doors.

If you pull the handbrake and turn on the main power switch, you can open and close the door through the button on the dashboard, and trigger and drive the solenoid valve of the door pump through the button on the remote control. When the handbrake is up but the main power switch is off, the door can be opened and closed by the remote controller.