Trip distance recorder
Citroen C3 / Citroen C3 Owner's Manual / Instruments and controls / Petrol - diesel manual or automatic gearbox instrument panels / Trip distance recorder
System which measures a distance travelled during a day or other period since it was reset to zero by the driver.

With the ignition on, press the button until zeros appear.
See also:
Starting
Manual gearbox
Ensure that the gear lever is in the neutral position.
Do not touch the accelerator.
For Diesel engines: Turn the key to the drive position. Wait for the preheater
warning lamp to ...
Closing
Take the stay out of the support
notch.
Clip the stay in its housing.
Lower the bonnet and release it at
the end of its travel.
Pull on the bonnet to check that it is
fully latched.
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