The rain sensor is behind the driving mirror in contact with the windscreen and has the purpose of automatically adjust, during the intermittent operation, the frequency of the windscreen wiper strokes as to the rain intensity.
The sensor has a range of adjustment that gradually varies between wiper stationary (no wiping) when the windscreen is dry, to wiper at first continuous speed (continuous slow) with heavy rain.
See also:
How to warm up the engine after it has just started (petrol and diesel versions)
Proceed as follows:
❒ Drive off slowly, letting the engine turn at medium revs. Do not accelerate
abruptly;
❒ Do not drive at full performance for the initial kilometres. Wait until ...
Engine codes - bodywork versions
...
Interior Fuses
The interior fuse panel is part of the Body Control Module (BCM) and is located
on the driver’s side under the instrument panel.
Fuse Panel
...