2014 Citroen DS5 cooling
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Coolant
temperature gauge
With the engine running:
- in zone A
, the temperature is correct,
- in zone B
, the temperature is too high; the
central STOP
warning lamp comes on,
accompanied by an audible signal and a
message in the instrument panel screen.
You MUST stop as soon as it is safe to do so.
Wait a few minutes before switching off the
engine.
Contact a CITROËN dealer or a qualified
workshop.
After driving for a few minutes, the temperature
and pressure in the cooling system increase.
To top up the level:
wait for the engine to cool,
unscrew the cap by two turns to allow the
pressure to drop,
when the pressure has dropped, remove
the cap,
top up the level to the "MA X" mark.
Be aware of the risk of burns when
topping up the cooling system. Do not
fill above the maximum level (indicated
on the reser voir).
Page 99 of 372
97Comfort
4. Automatic visibility
programme
For maximum cooling or heating of the
passenger compartment, it is possible
to exceed the minimum value 14 or the
maximum value 28.
Turn control 2
or 3
to the left
until "LO"
is displayed or to the
right until "HI"
is displayed.
See "Front demisting - defrosting".
2-3. Driver's-passenger's side
settings
The driver and front passenger can
each adjust the temperature to their
requirements.
The value indicated on the display
corresponds to a level of comfort and not to a
temperature in degrees Celsius or Fahrenheit.
Turn control 2
or 3
to the left or to the right
respectively to decrease or increase this
value.
A setting around the value 21 provides
optimum comfort. However, depending on your
requirements, a setting between 18 and 24 is
normal.
You are advised to avoid a left / right setting
difference of more than 3.
Manual operation
If you wish, you can make a different choice
from that offered by the system by changing a
setting. The "AUTO "
indicator lamps go off; the
other functions, except the air conditioning, will
still be controlled automatically.
Pressing the "AUTO "
button returns the
system to completely automatic operation.
With Stop & Start, when demisting has
been activated, the STOP mode is not
available.
Page 231 of 372
229Practical information
Driving advice
Distribution of loads
Distribute the load in the trailer so that the
heaviest items are as close as possible to
the axle and the nose weight approaches
the maximum permitted without
exceeding it.
Air density decreases with altitude, thus
reducing engine per formance. Above
1 000 metres, the maximum towed load must
be reduced by 10 % for every 1 000 metres of
altitude.
Side wind
Take into account the increased sensitivity
to side wind.
Cooling
Towing a trailer on a slope increases the
temperature of the coolant.
As the fan is electrically controlled, its cooling
capacity is not dependent on the engine speed.
To lower the engine speed, reduce your
speed.
The maximum towed load on a long incline
depends on the gradient and the ambient
temperature.
In all cases, keep a check on the coolant
temperature.
If the warning lamp and the
STOP
warning lamp come on,
stop the vehicle and switch off
the engine as soon as possible.
Braking
Towing a trailer increases the braking distance.
To avoid overheating of the brakes on a long
mountain type of descent, the use of engine
braking is recommended.
Ty r e s
Check the tyre pressures of the towing
vehicle and of the trailer, obser ving the
recommended pressures.
Lighting
Check the electrical lighting and signalling
on the trailer.
The rear parking sensors will be
deactivated automatically if a genuine
CITROËN towbar is used.
Refer to the "Technical data" section for details
of the weights and towed loads which apply to
your vehicle.
Page 243 of 372
241Checks
Checking levels
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).
Engine oil level
The check is carried out either when
the ignition is switched on using the
oil level indicator in the instrument
panel for vehicles with and electric oil
level gauge, or using the dipstick.
It is normal to top up the oil level between
two ser vices (or oil changes). CITROËN
recommends that you check the level, and top
up if necessary, every 3 000 miles (5 000 kms).
To ensure that the reading is correct,
your vehicle must be on level ground
and the engine has been off for more
than 30 minutes.
Check all of these levels regularly, in line with the maintenance and warranty guide. Top them up if necessary, unless other wise indicated.
If a level drops significantly, have the corresponding system checked by a CITROËN dealer or a qualified workshop.
Checking using the dipstick
Refer to the "Petrol engine" or "Diesel engine"
section for the location of the dipstick in the
engine compartment of your vehicle.
- Take the dipstick by its coloured grip and
remove it completely.
- Wipe the end of the dipstick using a clean
non-fluffy cloth.
- Refit the dipstick and push fully down, then
pull it out again to make the visual check:
the correct level is between the marks A
and B
.
A
= MA X
B
= MIN
If you find that the level is above the A
mark or
below the B
mark, do not star t the engine
.
- If the level is above the MAX
mark (risk
of damage to the engine), contact a
CITROËN dealer or a qualified workshop.
- If the level is below the MIN
mark, you
must top up the engine oil.
Page 245 of 372
243Checks
Coolant level
The coolant level should be close
to the "MA X" mark but should never
exceed it.
Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations.
In addition, as the cooling system is
pressurised, wait at least one hour after
switching off the engine before carrying
out any work.
To avoid any risk of scalding, unscrew
the cap by two turns to allow the
pressure to drop. When the pressure
has dropped, remove the cap and top
up the level. When the engine is warm, the temperature of
the coolant is regulated by the fan.
The cooling fan may star t after switching
off the engine: take care with ar ticles and
clothing that might become caught by the
fan blades.
Specifi cation of the fl uid
To ensure optimum cleaning and to avoid
freezing, the fluid should never be topped up or
replaced by plain water.
In wintry conditions, the use of an ethyl alcohol
or methanol base fluid is recommended.
Screenwash / headlamp
wash level
To check the level or top up the fluid on vehicle
fitted with headlamp washers, immobilise the
vehicle and switch of the engine.
Before opening the bonnet, ensure that the
engine has completely stopped.
Open the screenwash reser voir filler cap.
Take and pinch the level gauge to block its
breather.
Remove the gauge completely from the reservoir
to read the level in the transparent section.
Top up if necessary.
Refit the filler cap to the reser voir and close the
bonnet.