CITROEN 2 CV4 1975 Owner's Manual page 73

DRIVING
Driving
Gears, clutch, brakes
GEAR SELECTION (Fig. 14)
The gear positions are indicated on a diagram appearing on the
glass of the speedometer, below the total mileage indicator.
To engage reverse gear, wait until the car has stopped.
Do not forget to place the lever in neutral when parking.
Change gear as soon as the speedometer needle reaches the
approriate red marks so as to avoid over-accelerating the engine.
CLUTCH (According to model)
Foot operated of the conventional type.
Foot operated, of the conventional type, with an auxiliary
centrifugal device, the purpose of which is: either to disengage
the clutch as soon as the engine speed falls below a certain limit,
or to progressively re-engage the clutch as the engine speed is
increased.
When the car is fitted with this automatice device, you can: stop
Fig. 14
the car without depressing the cluch pedal, even when it is in
gear, and move off again by simply accelerating, provided either
Gear lever
1st or 2nd gear is engaged; drive in slow-moving traffic without
PM = Neutral
having to change gear, provided either 1st or 2nd gear is
AR = Reverse gear
engaged; move off on a hill without having to use the clutch
pedal, provided that the slope is less than 1 in 10 (10%) and that
the behicle is not fully-laden.