2011 Citroen DS4 check engine
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Changing the coolant
The coolant does not have to be changed.
Coolant specifi cation
The coolant must conform to the
manufacturer's recommendations.
Coolant level
The coolant level should be close
to the "MA X" mark but should never
exceed it.
When the engine is warm, the
temperature of the coolant is regulated by the
fan. This can operate with the ignition off.
On vehicles which are fitted with a par ticle
emission filter, the fan may operate after
the vehicle has been switched off, even if
the engine is cold.
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.
Power steering fluid level
The power steering fluid level should
be close to the "MA X" mark. Unscrew
the cap, with the engine cold,
to check the level. To check the level or top up the
fluid on vehicle fitted with headlamp
washers, immobilise the vehicle and
switch of the engine.
Screenwash/headlamp wash
level
Page 240 of 396
Checks
Battery
Air filter and passenger compartment filter
Oil filter
Unless other wise indicated, check these components in accordance with the ser vicing booklet and according to your engine.
Other wise, have them checked by a CITROËN dealer or a qualified workshop.
The battery does not require any
maintenance.
However, check that the terminals
are clean and correctly tightened,
particularly in summer and winter.
When carrying out work on the battery, refer
to the "Practical information" section for
details of the precautions to be taken before
disconnecting the battery and following its
reconnection. Refer to the servicing booklet for
details of the replacement inter vals
for these components.
Depending on the environment
(e.g. dusty atmosphere) and the use of the vehicle
(e.g. city driving), replace them twice as often if
necessary
(refer to the "Engines" section).
A clogged passenger compar tment filter may
have an adverse effect on the per formance
of the air conditioning system and generate
undesirable odours.
Replace the oil filter each time
the engine oil is changed.
Refer to the servicing booklet for
details of the replacement inter val for
this component.
The presence of this label, in particular with
the Stop & Star t system, indicates the use of
a specific 12 V lead-acid battery with special
technology and specification, for which the
involvement of a CITROËN dealer or a qualified
workshop is required when replacing or
disconnecting the battery.
Failure to obser ve this recommendation may
shor ten the life of the battery.
Page 242 of 396
Electric parking brake
This system does not require any
routine servicing. However, in the
event of a problem, have the system
checked by a CITROËN dealer or a
qualified workshop.
For more information, see "Driving - Electric
parking brake - § Operating faults".
Only use products recommended by
CITROËN or products of equivalent
quality and specification.
In order to optimise the operation
of units as impor tant as the braking
system, CITROËN selects and offers
very specific products.
To avoid damaging the electrical units,
the use of a high pressure washer
in the engine compar tment is strictly
prohibited
.
Brake disc wear
For information on checking brake
disc wear, contact a CITROËN dealer
or a qualified workshop.
Manual parking brake
If a loss of effectiveness of this
system is noticed, the parking brake
must be checked, even between
two ser vices.
Checking this system must be done by a
CITROËN dealer or a qualified workshop.
Brake pads
Brake wear depends on the style
of driving, par ticularly in the case
of vehicles used in town, over shor t
distances. It may be necessary to
have the condition of the brakes checked,
even between vehicle ser vices.
Unless there is a leak in the system, a drop in
the brake fluid level indicates that the brake
pads are worn.
Page 247 of 396
245Practical information
1. Sealing
)
Uncoil the white pipe G
fully.
)
Unscrew the cap from the white pipe.
)
Connect the white pipe to the valve of the
tyre to be repaired.
Repair procedure
Avoid removing any foreign bodies
which have penetrated into the tyre.
)
Connect the compressor's electric plug to
the vehicle's 12 V socket.
)
Star t the vehicle and leave the engine
running.
)
Switch off the ignition.
)
Turn the selector A
to the
"sealant" position.
)
Check that the switch B
is in
position "O"
.
Take care, this product is harmful
(e.g. ethylene-glycol, colophony...) if
swallowed and causes irritation to the
eyes.
Keep it out of reach of children.
Page 250 of 396
Removing the cartridge
)
Stow the black pipe.
)
Detach the angled base from the white pipe.
)
Suppor t the compressor ver tically.
)
Unscrew the car tridge from the bottom.
Checking tyre pressures/
inflating accessories
Beware of discharges of fluid.
The expiry date of the fluid is indicated
on the car tridge.
The sealant car tridge is designed for
single use; even if only par tly used,
it must be replaced.
After use, do not discard the car tridge
into the environment, take it to an
authorised waste disposal site or a
CITROËN dealer.
Do not forget to obtain a new sealant
car tridge, available from CITROËN
dealers or from a qualified workshop.
You can also use the compressor, without
injecting any product, to:
- check or adjust the pressure of your tyres,
- inflate other accessories (balls, bicycle
tyres...).
)
Connect the compressor's electrical
connector to the vehicle's 12 V socket.
)
Star t the vehicle and let the engine run.
)
Adjust the pressure using the compressor
(to inflate: switch B
in position "I"
;
to deflate: switch B
in position "O"
and
press button C
), according to the vehicle's
tyre pressure label or the accessory's
pressure label.
)
Remove the kit then stow it.
)
Turn the selector A
to the "Air"
position.
)
Uncoil the black pipe H
fully.
)
Connect the black pipe to the
valve of the wheel or accessory.
If necessary, fit one of the adaptors
supplied with the kit first.
Page 272 of 396
)
Connect the red cable to the positive
terminal (+) of the flat battery A
, then to the
positive terminal (+) of the slave battery B
.
)
Connect one end of the green or black
cable to the negative terminal (-) of the
slave battery B
.
)
Connect the other end of the green or black
cable to the ear th point C
on the broken
down vehicle.
)
Operate the starter, let the engine run.
)
Wait until the engine returns to idle and
disconnect the cables.
Charging the battery using
a battery charger
The batteries contain harmful substances
such as sulphuric acid and lead. They must
be disposed of in accordance with regulations
and must not, in any circumstances,
be discarded with household waste.
Take used remote control batteries and
vehicle batteries to a special collection point.
)
Disconnect the battery from the vehicle.
)
Follow the instructions for use provided by
the manufacturer of the charger.
)
Reconnect starting with the negative
terminal (-).
)
Check that the terminals and connectors
are clean. If they are covered with sulphate
(whitish or greenish deposit), remove them
and clean them.
The Stop & Star t battery does not have
to be disconnected for charging.
It is advisable to disconnect the battery
if the vehicle is to be left unused for
more than one month.
Starting using another
battery
Page 279 of 396
277Practical information
The rear parking sensors will be
deactivated automatically if a genuine
CITROËN towbar is used.
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.
Refer to the "Technical Data" section for details
of the weights and towed loads which apply to
your vehicle.
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.
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.
)
If the warning lamp and the
STOP
warning lamp come on,
stop the vehicle and switch off
the engine as soon as possible.
Page 289 of 396
287Technical data
Identifi cation markings
Various visible markings for the identification of your vehicle.
A.
Vehicle identification number (VIN) under the bonnet.
This number is engraved on the bodywork near
the engine mounting.
B. Vehicle identification number on the
dashboard.
This number is indicated on a self-adhesive
label which is visible through the windscreen.
D. Tyre/paint label.
This label is affixed to the driver's front pillar. Wheels which are fitted with 225/40 R18
tyres cannot be fitted with snow chains.
For more information, contact a CITROËN
dealer or a qualified workshop.
Low tyre pressures increase fuel
consumption. The tyre pressures must be checked
when the tyres are cold, at least once
a month.
C. Manufacturer's label.
The VIN is indicated on a self-destroying label
affixed to the driver's centre pillar. It bears the following information:
- the tyre pressures, for unladen and laden
conditions,
- the wheel rim and tyre sizes,
- the brands of tyre recommended by the
manufacturer,
- the spare tyre inflation pressure,
- the paint colour code.