The needle is positioned before the red
zone: normal operation.
In arduous conditions of use or hot climatic
conditions, the needle may move close to
the red graduations.
What you should do if the warning lamp
comes on:
- stop immediately, switch off the ignition.
The fan may continue to operate for
a certain time, up to approximately
10 minutes,
- wait for the engine to cool down in order
to check the coolant level and top it up if
necessary.
- 1: the fuel tank is full, approximately
80 litres.
- 0: the reserve is now being used, the
warning lamp comes on continuously.
The reserve when the warning first comes
on is approximately 8 litres.
Refer to the "Fuel" section of chapter 6.
What you should do if the needle enters
the red zone:
Reduce your speed or let the engine run at
idle.
As the cooling system is pressurised, follow
this advice in order to avoid any risk of
scalding:
- wait at least one hour after switching off
the engine before carrying out any work,
- unscrew the cap by 1/4 turn to allow the
pressure to drop,
- when the pressure has dropped, check
the level on the expansion bottle,
- if necessary, remove the cap to top up.
If the needle remains in the red zone, have
the system checked by a CITROËN dealer
or a qualified workshop.
Refer to the "Levels" section of chapter 6.