2021 CITROEN DS7 CROSSBACK fuel pressure

8Eco-driving
Eco-driving
Eco-driving refers to a range of everyday practices
that allow the motorist to optimise the vehicle's
energy consumption (fuel and/or electricity) and
CO
2 emissions.
Optimise your use of the gearbox
With an automatic gearbox, favour automatic
mode. Do not depress the accelerator pedal
heavily or suddenly.
The gear shift indicator prompts you to engage
the most suitable gear. Whenever this indication
is displayed on the instrument panel, follow it
straight away.
With an automatic gearbox, this indicator
appears only in manual mode.
Drive smoothly
Maintain a safe distance between vehicles, use
engine braking rather than the brake pedal and
press the accelerator gradually. These practices
help to save on energy consumption, reduce CO
2
emissions and decrease general traffic noise.
Favour the use of the "Eco" driving mode by
selecting it using the "DRIVE MODE" control.
When the traffic is flowing smoothly, select the
cruise control.
Control the use of electrical equipment
Before moving off, if the passenger compartment
is too warm, ventilate it by opening the windows
and air vents before using the air conditioning. At speeds above 31 mph (50 km/h), close the
windows and leave the air vents open.
Consider using equipment that can help keep the
temperature in the passenger compartment down
(e.g. sunroof blind, window blinds).
Unless automatically regulated, switch off the air
conditioning as soon as the desired temperature
has been reached.
Switch off the demisting and defrosting
functions, if they are not managed automatically.
Switch off the heated seat as soon as possible.
Adapt your use of the headlamps and/or foglamps
to the level of visibility, in accordance with
current legislation in the country in which you are
driving.
Avoid running the engine before moving off,
particularly in winter (other than in severe wintry
conditions: temperature below -23°C). The vehicle
will warm up much faster while driving.
As a passenger, avoid connecting your multimedia
devices (e.g. film, music, video game) to help
reduce the consumption of energy.
Disconnect all portable devices before leaving the
vehicle.
Limit the causes of excess consumption
Spread loads throughout the vehicle. Place the
heaviest items in the boot as close as possible to
the rear seats.
Limit the loads carried in the vehicle and minimise
wind resistance (e.g. roof bars, roof rack, bicycle
carrier, trailer). Preferably, use a roof box.
Remove roof bars and roof racks after use.At the end of winter, remove snow tyres and refit
summer tyres.
Comply with the servicing instructions
Check tyre pressures regularly, with the tyres
cold, referring to the label in the door aperture on
the driver's side.
Carry out this check in particular:
–

before a long journe
y.
–

a
t each change of season.
–

a
fter a long period out of use.
Do not forget the spare wheel and, where
applicable, the tyres on your trailer or caravan.
Have your vehicle serviced regularly (e.g. engine
oil, oil filter, air filter, passenger compartment
filter, etc.). Observe the schedule of operations in
the manufacturer's service schedule.
With a BlueHDi Diesel engine, if the SCR system
has a fault, your vehicle will emit pollution. Visit a
dealer or a qualified workshop as soon as possible
to restore your vehicle's nitrogen oxide emissions
to legal levels.
When filling the fuel tank, do not continue after
the third cut-out of the nozzle, to avoid overflow.
You will only see the fuel consumption of your new
vehicle settle down to a consistent average after
the first 1,900 miles (3,000 kilometres).
Optimising the driving range (rechargeable
hybrid vehicles)
Connect the vehicle as soon as possible.
Favour the ECO zone of the power indicator by
driving smoothly and at a steady speed.

161
Practical information07
Petrol engine

Diesel engine

1. Screenwash fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery/Fuses
5. Remote earth point (-)
6. Fusebox
7. Air filter
8. Engine oil filler cap
9. Engine oil dipstick
10. Priming pump*
11. Degassing screw*
* Depending on engine .
Diesel fuel system
This system is under very high pressure.
All work must be carried out only by a dealer or
a qualified workshop.
Checking levels
Check all of the following levels regularly in
accordance with the Manufacturer's service
schedule. Top them up if required, unless
otherwise indicated.
If a level drops significantly, have the
corresponding system checked by a dealer or a
qualified workshop.
The fluids must comply with the
Manufacturer's requirements and with
the vehicle's engine.
Take care when working under the
bonnet, as certain areas of the engine
may be extremely hot (risk of burns) and the
cooling fan could start at any time (even with
the ignition off).
Used products
Avoid prolonged contact of used oil or
fluids with the skin.
Most of these fluids are harmful to health and
very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
Empty used oil into the containers reserved
for this purpose at a dealer or a qualified
workshop.
Engine oil
The level is checked, with the engine
having been switched off for at least 30
minutes and on level ground, either using the oil
level indicator in the instrument panel when the
ignition is switched on (for vehicles equipped with
an electric gauge), or using the dipstick.
It is normal to top up the oil level between two
services (or oil changes). It is recommended that
you check the level, and top up if necessary, every
3,000 miles (5,000 km).
In order to maintain the reliability of the
engine and emissions control system,
never use additives in the engine oil.

217Alphabetical index
Night Vision 70
O
Obstacle detection 137
Oil change
161
Oil consumption

161
Oil, engine

161
On-board tools

62, 170–172
Opening the bonnet

160
Opening the boot

28, 32
Opening the doors

28, 32
P
Pads, brake 164
Paint
168, 193
Paint colour code

193
Parcel shelf, rear

60
Parking brake, electric

99–101, 164
Parking (sensors)

137
Parking sensors, audible and visual

137
Parking sensors, front

137
Parking sensors, rear

137
Parking sensors, side

138
Passenger compartment temperature
pre-conditioning (Rechargeable hybrid)

25, 54
Pedestrian horn (Rechargeable hybrid)

77
Personalisation

10
Plates, identification 193
Port, USB
56, 60
Power

20
Power indicator (Rechargeable hybrid)

8, 20
Pressures, tyres

164, 173–174, 193
Pre-tensioning (seat belts)

83
Priming the fuel system

170
Profiles

195
Programmable cruise control

119
Protecting children

84, 86–91, 94
Puncture

172–173, 175
R
Radar (warnings) 112
Radio
204–205
Range, AdBlue®

19, 163
Reading lamps, touch-sensitive

59
READY (warning lamp)

160
Rear air blower

53
Rear screen (demisting)

54
Rechargeable
hybrid engine

8, 24, 159–160, 186, 192
Rechargeable
hybrid system

6, 8, 24, 98, 107, 145
Recharging the battery

181–182, 184
Recharging the traction battery

149
Recharging the traction battery
(Rechargeable hybrid)

145, 153–154
Recirculation, air

52–53
Recorder, trip distance 21
Reduction of electrical load (mode)
159
Regeneration of the particle filter

163
Regenerative braking
(deceleration by engine braking)

105
Reinitialising the remote control

32
Reinitialising the under-inflation
detection system

111
Reminder, lighting on

63–64
Remote control

26–30
Remote functions

155
Remotely operable functions
(Rechargeable hybrid)

24–25, 54
Removing a wheel

175–177
Removing the mat

59
Replacing bulbs

178–179
Replacing fuses

180
Replacing the air filter

163
Replacing the oil filter

163
Replacing the passenger
compartment filter

163
Reservoir, screenwash

162
Resetting the trip

22
Reversing camera

112, 138–140
Reversing lamps

179
Roof bars

157–158
Running out of fuel (Diesel)

170