Do it yourself
Frequently asked questions about cars and motorcycles

How to Reset the Air Conditioner in a Mercedes C-Class?

Model: Mercedes Classe C W203 - Years 2000-2007
Part: Warning light – error code

In this tutorial, see how to reset the air conditioner in a Mercedes C-Class. This operation is extremely simple and quick, and can be done to restore factory settings or in case of malfunction. First, position yourself inside the cabin, then turn on the instrument cluster; it is not necessary to start the engine. Press and hold the rear window defrost button along with the air recirculation button. Keep both buttons pressed for a few seconds, release them, and wait for the procedure to complete, which will take about 30 seconds.

Updated on 25 July 2026 by ScegliAuto

Video tutorial

Related tutorials

Mercedes Classe C (2014-2021 / W205) .. to reset the air conditioner of the Mercedes C-Class. In order to perform the reset of the automatic air conditioner, it will be necessary to use a.. …
Mercedes Classe C (1993-2000 / W202) .. the automatic climate control of the Mercedes C-Class. First, get in the vehicle and turn on the instrument panel; then turn on the automatic climate.. …
Mercedes Classe C (2007-2013 / W204) .. In the Mercedes C-Class, the air conditioner can be reset by connecting a diagnostic tool to the OBD port of the car: this.. …

Other guides you may be interested in

    Frequently Asked Questions

    • Classe C 2000-2007 - Why did the "SRS" warning light come on in the Mercedes C-Class? Read answer

How to Connect the Cables to the Battery of the Citroen Xsara Picasso?

In this tutorial, you will see how to connect the cables to the battery of the Citroen Xsara Picasso, useful if you need to recharge it or perform an emergency start. First, ensure the key is not inserted, then open the bonnet and move to the front of the left headlamp. Next, locate the bolt just behind the filter box and connect the positive terminal clamp to it. Now you can connect the negative terminal to any point on the chassis, such as the indicated point. Once the operation is complete, ensure you disconnect the negative first and then the positive.

Watch the video!


by ScegliAuto

More videos