Operating faults
If there is an operating fault, when reverse gear is engaged the service warning lamp comes on, accompanied by an audible signal (short beep) and a message on the multifunction screen.
In bad or wintry weather, ensure that the sensors are not covered with mud, frost or snow.
See also:
Comfort & convenient technology
The new Citroën C4 is designed for business-class travel with intuitive,
intelligent technology enabling owners to tailor the new C4's environment and
ambience to their own preferences. For e ...
Mirrors
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Diesel engines HDi 110 - HDi 138 (with particle filter)
1. Screen wash and headlamp wash reservoir.
2. Power steering fluid or power steering and suspension fluid reservoir.
3. Engine coolant reservoir.
4. Engine oil gauge.
5. Engine oil topping-up.
...