2011.5 Citroen C4 DAG brake
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10
CHECKS
184
CHECKING LEVELS
Check all of these levels regularly and
top them up if necessary, unless other-
wise indicated.
If a level drops signifi cantly, have the
corresponding system checked by a
CITROËN dealer or a qualifi ed work-
shop.
When working under the bonnet,
take care, as certain areas of the
engine may be extremely hot (risk
of burns).
The reading will only be correct if
the vehicle is on level ground and
the engine has been off for more
than 30 minutes.
The check is carried out either when the
ignition is switched on using the oil level
indicator in the instrument panel, or using
the dipstick.
It is normal to top up the oil level between
two services. CITROËN recommends that
you check the oil level, and top up if neces-
sary, every 3 000 miles (5 000 kilometres).
Oil level
Engine oil change
Refer to the servicing booklet for the
interval for this operation.
In order to maintain the reliability of the
engine and emission control system,
the use of additives in the engine oil is
prohibited.
Oil specifi cation
The oil must correspond to your engine
and conform to the manufacturer's rec-
ommendations.
Brake fluid level
The brake fl uid level should be
close to the "MAX" mark. If it is
not, check the brake pad wear.
Changing the fl uid
Refer to the servicing booklet for the
interval for this operation.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations and
meet the DOT4 standard.
Power steering fluid level
The power steering fl uid level
should be close to the "MAX"
mark. Unscrew the cap, with
the engine cold, to check the
level.
Coolant level
The coolant level should be
close to the "MAX" 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 ig-
nition off.
On vehicles which are fi tted with a par-
ticle emission fi lter, the fan may oper-
ate 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 pres-
sure to drop. When the pressure has
dropped, remove the cap and top up
the level.
Changing the coolant
The coolant does not have to be
changed.
Coolant specifi cation
The coolant must conform to the manu-
facturer's recommendations.
Page 189 of 332
10
CHECKS
187
Manual gearbox
The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the servicing book-
let for the details of the level
checking interval for this com-
ponent.
6-speed electronic gearbox
system
The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the servicing booklet
for details of the checking in-
terval for this component.
Automatic gearbox
The gearbox does not re-
quire any maintenance (no oil
change).
Refer to the servicing booklet
for details of the level checking
interval for this component.
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 qualifi ed workshop.
For more information, see "Driving - Electric parking brake - § Operating faults".
Brake pads
Brake disc wear
If a loss of effectiveness of this
system is noticed, the parking
brake must be checked, even
between two services.
Checking this system must be
done by a CITROËN dealer or a quali-
fi ed workshop.
Only use products recommended
by CITROËN or products of equiv-
alent quality and specifi cation.
In order to optimise the opera-
tion of units as important as
the braking system, CITROËN
selects and offers very specifi c
products.
To avoid damaging the electrical
units, the use of a high pressure
washer in the engine compart-
ment is strictly prohibited
.
Manual parking brake
For information on checking
brake disc wear, contact a
CITROËN dealer or a quali-
fi ed workshop. Brake wear depends on the
style of driving, particularly in
the case of vehicles used in
town, over short distances. It
may be necessary to have the
condition of the brakes checked, even
between vehicle services.
Unless there is a leak in the system, a drop
in the brake fl uid level indicates that the
brake pads are worn.
Page 197 of 332
11
PRACTICAL INFORMATION
195
Removing a wheel
Parking the vehicle
Immobilise the vehicle where it
does not block traffi c: the ground
must be level, stable and non-
slippery ground.
Apply the parking brake unless it
has been programmed to auto-
matic mode, switch off the ignition
and engage fi rst gear * to lock the
wheels.
Check that the braking warning
lamps in the instrument panel
are on (not fl ashing).
The occupants must get out of
the vehicle and wait where they
are safe.
If necessary, place a chock under
the wheel diagonally opposite the
wheel to be changed.
Never go underneath a vehicle
raised using a jack; use an axle
stand.
*
position R
for the electronic gearbox
system; P
for an automatic gearbox.
List of operations
)
Remove the chromed bolt cover
from each of the bolts using the
tool 3
(according to equipment).
)
Fit the security socket 4
on the
wheelbrace 1
to slacken the secu-
rity bolt.
)
Slacken the other bolts using the
wheelbrace 1
only.
)
Place the jack 2
in contact with one
of the two front A
or rear B
locations
provided on the underbody, which-
ever is closest to the wheel to be
changed.
)
Extend the jack 2
until its base plate
is in contact with the ground. Ensure
that the centreline of the jack base
plate is directly below the location A
or B
used.
)
Raise the vehicle until there is suffi -
cient space between the wheel and
the ground to admit the spare (not
punctured) wheel easily.
)
Remove the bolts and store them in
a clean place.
)
Remove the wheel.
Page 203 of 332
11
PRACTICAL INFORMATION
201
Rear lamps
1.
Brake/
sidelamp
(P21/5W).
2.
Direction
indicator
(PY21W amber)
.
3.
Reversing lamp (P21W).
4.
Rear
foglamp
(P21W).
Amber bulbs, such as those for
the direction indicators, must be
replaced by bulbs of the same
rating and colour.
The lamps on the tailgate are
dummy units. They are there for
aesthetic purposes only.
Changing bulbs
These four bulbs are changed from in-
side the boot:
)
open the boot,
)
remove the access fl ap from the
corresponding side trim panel,
)
unclip the lamp unit connector,
)
As a precaution, place a cloth in the
bottom of the housing to catch the
nut if it is dropped on removal,
)
slacken the hexagonal nut using a
10 mm tube spanner then remove
the nut by hand,
)
remove the two bulb holder fi xing
screws,
)
extract the lamp unit carefully pulling
in its middle towards the outside,
)
spread the four tabs and remove
the bulb holder,
)
turn the bulb a quarter of a turn and
change it.
To r efi t, carry out these operations in
reverse order.
Take care to engage the lamp unit in its
guides, while keeping it in line with the
vehicle.
Tighten suffi ciently to ensure sealing,
but without damaging the lamp.
Page 204 of 332
11
PRACTICAL INFORMATION
202
To facilitate the removal of the lamp,
carry out this operation with the tailgate
half open.
)
Insert a thin screwdriver into the
lens cutout.
)
Push it outwards.
)
Remove the lens.
)
Change the faulty bulb.
To r efi t, press on the lens to clip it in
place.
Number plate lamps (W5W)
For the replacement of this type of LED
lamp, contact a CITROËN dealer or a
qualifi ed workshop.
Third brake lamp (LEDs)
Page 213 of 332
11
PRACTICAL INFORMATION
211
TOWING THE VEHICLE
Procedure for having your vehicle
towed or for towing another vehicle us-
ing a removable towing eye.
The towing eye is installed in the boot
under the fl oor.
To gain access to it:
)
open the boot,
)
raise the fl oor,
)
secure it by hooking its cord on the
hook on the rear parcel shelf sup-
port,
)
remove the towing eye from the
holder.
Access to the tools
General recommendations
Observe the legislation in force in your country.
Ensure that the weight of the towing vehicle is higher than that of the towed
vehicle.
The driver must stay at the wheel of the towed vehicle.
Driving on motorways and fast roads is prohibited when towing.
When towing a vehicle with all four wheels on the ground, always use an
approved towing bar; rope and straps are prohibited.
When towing a vehicle with the engine off, there is no longer any power as-
sistance for braking or steering.
In the following cases, you must always call on a professional recovery
service:
- vehicle broken down on a motorway or fast road,
- when it is not possible to put the gearbox into neutral, unlock the steering,
or release the parking brake,
- towing with only two wheels on the ground,
- where there is no approved towing bar available...
Page 214 of 332
11
PRACTICAL INFORMATION
212
)
On the front bumper, unclip the cov-
er by pressing at the bottom.
)
Screw the towing eye in fully.
)
Install the towing bar.
Towing your vehicle
)
Place the gear lever in neutral
(position N
on the electronic
gearbox system or automatic
gearbox).
Failure to observe this in-
struction could result in dam-
age to certain components
(braking, transmission...)
and the absence of braking
assistance the next time the
engine is started.
)
On the rear bumper, unclip the cover
by pressing at the bottom.
)
Screw the towing eye in fully.
)
Install the towing bar.
)
Switch on the hazard warning lamps
on both vehicles.
)
Move off gently, drive slowly and for
a short distance.
Towing another vehicle
)
Unlock the steering by turning the
key in the ignition one notch and re-
lease the parking brake.
)
Switch on the hazard warning lamps
on both vehicles.
)
Move off gently, drive slowly and for
a short distance.
Page 215 of 332
11
PRACTICAL INFORMATION
213
TOWING A TRAILER,
A CARAVAN, ETC.
We recommend the use of genu-
ine CITROËN towbars and their
harnesses that have been tested
and approved from the design
stage of your vehicle, and that
the fi tting of the towbar is en-
trusted to a CITROËN dealer or
a qualifi ed workshop.
If the towbar is not fi tted by a
CITROËN dealer, it is impera-
tive that it is fi tted in accordance
with the vehicle manufacturer's
instructions. The rear parking sensors will
be deactivated automatically if
a genuine CITROËN towbar is
used.
Towbar suitable for the attachment of a
trailer or caravan with additional lighting
and signalling.
Your vehicle is primarily designed for
transporting people and luggage, but it
may also be used for towing a trailer. Driving with a trailer places greater de-
mands on the towing vehicle and the
driver must take particular care.
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 performance. 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 in-
cline depends on the gradient and the
ambient temperature.
In all cases, keep a check on the cool-
ant 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.
Tyres
)
Check the tyre pressures of the towing
vehicle and of the trailer, observing the
recommended pressures.
Lighting
)
Check the electrical lighting and sig-
nalling on the trailer.