Why is the Mercedes-Benz Vito electric door not responding when pressed?
2 Answers
It may be due to a dead battery—try replacing the battery. Alternatively, the signal might not be received if the distance is too far; try moving closer. Another possibility is releasing the button too quickly before the electric sliding door control box can react—try holding the button for 1-2 seconds. If the issue persists, the relay controlling the receiver may be damaged, requiring inspection and repair. Reasons why the electric sliding door does not respond when the switch is pressed: 1. Reason one: Check if the power supply is normal. If there is no power, connect a 220V single-phase power supply. 2. Reason two: Open the control box and press the remote control to observe whether the signal reception indicator on the circuit board lights up. If it does not, replace the remote control or battery. 3. Reason three: Press the stop button on the circuit board and observe whether the motor's stop signal light turns on. If it does not, replace the control motherboard. 4. Reason four: If pressing the button on the circuit board lights up the indicator but the motor does not rotate, replace the motor start capacitor or the motor itself. 5. Reason five: If pressing the button on the circuit board lights up the indicator and the motor runs idle without moving the door, it may be in neutral—ensure both motors have their clutches engaged.
My Mercedes-Benz Vito also had this issue before, and I found it was usually caused by several common situations. First, check if the remote key battery has power - if the key lights up but the door doesn't move, you'll need to think differently. Then inspect the fuse box, as electric doors have dedicated fuses that can cause no response when blown. Physical issues like deformed tracks or jammed pebbles can also cause failure - last time my door stopped working because the track got bent in a collision. Water ingress during car washing or control module short circuits can make it stop working too, in which case you should wait until completely dry before retrying. It's best to check the motor simultaneously, as motor aging or loose connectors affect door operation. I recommend consulting a professional technician for diagnosis, as DIY disassembly might worsen wiring issues.
