Do it yourself
Frequently asked questions about cars and motorcycles

The "Rest" Function of the Automatic Air Conditioning in the Citroen C4

Model: Citroen C4 MK 3 - Years 2020-2026
Part: Air conditioner

In this video, we see that the "rest" mode in the Citroen C4 is an intelligent function that maintains ventilation in the cabin for a few minutes after the engine is turned off, utilising the residual heat from the engine or the air conditioning (if activated before shutdown). To activate it, ensure the air conditioning is on before turning off the engine; after shutdown, press the "rest" button on the climate panel (it will light up). Air will continue to circulate for 15/30 minutes, depending on the outside temperature and battery charge. It is ideal for short stops while waiting in the car; it uses residual energy without consuming fuel. For example, during a winter trip, press "rest" to keep the cabin warm while refuelling.

Posted on 4 March 2026 by ScegliAuto

Video tutorial

Related tutorials

Citroen C4 (2014-2020 / Cactus) In this very brief video guide, you can see how to activate and/or deactivate the air conditioning on a Citroen C4, Cactus model produced from 2014 t…
Citroen C4 (2004-2010 / MK 1) To reset the automatic gearbox of the Citroën C4, enter the cabin, close the door, and press the brake pedal without turning on the ignition. Hold th…
Citroen C4 (2010-2018 / MK 2) To enable automatic central locking on your Citroën C4, follow these simple steps. First of all, get into the car and make sure all the doors are pro…

Other guides you may be interested in

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos