There is not an official way to reset the mercedes parking sensors. What You can do however is pull the fuse and let it sit for about 30 min. To get to the fuse box look to the left of the steering wheel look for a small seam or crack along the dash. Using a screwdriver or prybar You will want to pop this open.

Parktronic, which depends on sensors in the front and rear bumpers to determine whether or not it can fit into a space, is now often combined with ‘Active Parking Assist’, which controls the steering to make parallel parking much easier.

There may be dirt and debris trapped on them or they may be oily or dusty. Make sure that you have it completely cleaned off before you put it back in. Then, turn on your car and see if there are any more issues arising after this has been done.

Mercedes-Benz PARKTRONIC® with Active Parking Assist is a driver-assistive technology that helps you parallel park. The PARKTRONIC® with Active Parking Assist system uses an array of advanced sensors in a vehicle’s bumper to determine if the Mercedes-Benz car or SUV can fit into a parking spot.

Registered. Theres a switch on the console, to the bottom right of the shifter. Press it once to turn it off.

When your Mercedes-Benz is in drive, the blue “P” indicator light will show that the PARKTRONIC® with Active Parking Assist feature is functioning and looking for a parking space for you.

You can’t reset them. If you get someone you trust(!) to sit in the car and engage reverse and then you go to the sensors in the rear bumper and listen to which one is making a slight buzz… thats the one not working.

The Parktronic switch can get sticky or stop operating. You may want to go further and remove the switch to check the operation with a multimeter. If the range of your Mercedes-Benz parking system is poor, clean the sensor first. In the following video, you will learn how to troubleshoot Mercedes-Benz Parktronic using an all-system OBD2 scanner.

But you can only see the front of the sensor and usually when they fail on a 211, it is visible when you remove the sensor. It could be a wiring issue to if it appears when braking. Never heard of a SW issue with Parktronic but the first time can happen any time. Ah, I see. Thanks for the info.

How to replace Mercedes parking sensors yourself. How does the Mercedes-Benz Parktronic system work? The first generation of Mercedes Parktronic system uses sensors on the bumper to detect objects nearby. It provides a visual and audible warning as the distance between the object and the car decreases.

Mercedes-Benz radar system may malfunction and set errors in various Mercedes modules including Parktronic System, Collision Prevention Assist Plus and Distronic Plus, autonomous driving, Active Brake Assist Cross Traffic, etc.