engine coolant RENAULT MASTER 2018 Owners Manual

1.79
WARNING LIGHTS (2/4)
The presence and operation of the warning lights DEPEND ON THE EQUIPMENT\
AND COUNTRY.
DHandbrake on and brake cir-
cuit incident warning light
This comes on when the ignition is
switched on and goes out as soon as
the handbrake is released. If it comes
on during braking or when the vehicle
is being driven, accompanied by the
® indicator light, it means that one
of the circuit levels is too low; it may be
dangerous to continue driving. Consult
an approved dealer.
\bTyre pressure loss warning
Please refer to the information
on the “Tyre pressure loss warning” in
Section 2.
©Warning light
This comes on when the igni-
tion is switched on and goes out after
about 3 seconds. If it comes on, pos-
sibly accompanied by other warning
lights, you should visit an approved
dealer as soon as possible. Depending
on the vehicle, this warning light is ac-
companied by a message on the instru-
ment panel.
ÄToxic fume filter system
warning light
On equipped vehicles, the light comes
on when the ignition is switched on then
goes out.
– If it lights up continuously accom- panied by the
© warning light,
please consult an authorised dealer
as soon as possible;
– if it flashes, reduce the engine speed until the light stops flashing. Contact
an approved dealer as soon as pos-
sible.
Please refer to the information on
«Maintenance and anti-pollution
advice» in Section 2.
åIndicator light Airbag
This light comes on when the
ignition is switched on and goes out
within about 3 seconds. If it comes on,
there is a fault in the system. Contact
an approved dealer as soon as possi-
ble.
2
Door status warning light
If it lights up when the ignition
is switched on, it indicates that
a door is not properly closed.
ÜNot used
®STOP light
This comes on when the igni-
tion is switched on and goes out after
about 3 seconds.
If it comes on, possibly accompanied
by other warning lights, stop soon as
traffic conditions allow. Contact an ap-
proved dealer as soon as possible.
Depending on the vehicle, this warning
light is accompanied by a message on
the instrument panel.
ÔCoolant temperature warn-
ing light
If this remains lit while driving accom-
panied by the
® indicator light, it
indicates engine overheating. Stop and
allow the engine to run at idle speed for
about a minute or two. The tempera-
ture should drop. Otherwise, stop the
engine. Let the engine cool down, then
check the coolant level. Contact an ap-
proved Dealer if necessary.

1.83
Displays and indicators (2/2)
Fuel gauge 3
The needle shows the fuel level. When
it is at the minimum level, the fuel war-
ning light
L comes on, accompa-
nied by a beep.
Fill up as soon as possible. The presence and operation of the display and indicators DEPENDS ON THE \
LEVEL OF EQUIPMENT AND THE COUNTRY.
3
4
B
Coolant temperature indicator 4
In normal use, the needle should be
before area B. Under severe condi-
tions, the needle may enter this area.
This is not serious unless the
Ô
warning light comes on or the message
“engine overheating” appears.
Additive level indicator 5
The needle shows the additive level.
When it is at the minimum level, the
 warning light comes on, accom-
panied by a beep.
Refer to the information on "Additive
tank" in Section 1.
5

2.5
Preventing the engine from
standing by
In certain situations, such as negotiat-
ing a crossroads for instance, it is pos-
sible (with the system activated) to keep
the engine running so as to be ready to
move off quickly.
SEQUENTIAL gearbox
Keep the vehicle stationary without
pressing too hard on the brake pedal.
Manual gearbox
Keep the clutch pedal pressed right
down.
STOP AND START FUNCTION (2/3)Conditions for coming out of
engine standby
For sequential gearbox:
– the brake pedal is released, position A or M engaged, or;
– the brake pedal is released, position N engaged and the handbrake off,
or;
– or the brake pedal is pressed again, with position P engaged or position
N engaged with the parking brake
applied or;
– position R is engaged or;
– the accelerator pedal is pressed.
For manual gearboxes:
– the gearbox is in neutral and the clutch pedal is slightly depressed, or
– the engine is in gear and the clutch pedal is pressed right down.
Conditions preventing the
standby of the engine
Certain conditions prevent the system
from using the engine standby function,
including when:
– reverse gear is engaged;
– the bonnet is not locked; – the outdoor temperature is too low or
too high (less than around 0 °C or
higher than around 35 °C);
– the battery is not sufficiently charged;
– the difference between the vehicle interior temperature and the auto-
matic climate control instruction is
too high;
– the “Clear View” function is activated (please see “Automatic Climate
Control” in Section 3);
– the engine coolant temperature is too low;
– automatic particle filter cleaning is underway;
– the “Fast Idle Speed” function is acti- vated (please refer to the information
on “Fast Idle Speed” in section 2);
– ...
Warning light
 is displayed on the
instrument panel. This notifies you that
the engine is on standby.
To fill up with fuel, the engine must
be stopped (and not on standby):
stop the engine (Please See
“Starting, stopping the engine” in
Section 2).

4.1
Section 4: Maintenance
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2
Engine oil level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4
Engine oil level: topping up/filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . 4.6
Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8
coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9
power-assisted steering pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . 4.10
windscreen washer reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . 4.10
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10
Tyre pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.11
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.13
Bodywork maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . 4.14
Interior trim maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . 4.17

4.9
 Coolant
With the engine switched off and on
level ground, the level when cold must
be between the “ MINI” and “MAXI”
marks on the coolant reservoir 2.
Top this level up when cold before it
reaches the “MINI” mark.
LEVELS (2/3)
Frequency of checking coolant level
Check the coolant level regularly
(very severe damage is likely to be
caused to the engine if it runs out of
coolant).
If the level needs to be topped up, only
use products approved by our Technical
Department which ensure:
– protection against freezing;
– anticorrosion protection of the cool- ing system.
Replacement intervals
Refer to the Maintenance Document for
your vehicle.
2
Windscreen washer
reservoir 4
Filling
With the engine switched off, open
cap 3, fill until you can see the fluid,
then refit the cap.
Fluid
Special windscreen washer fluid (prod-
uct with antifreeze in winter).
3
4
Consult your approved dealer at
once if you notice an abnormal or
repeated drop in any of the fluid
levels.
No operations should be
carried out on the cooling
circuit when the engine is
hot.
Risk of burns.

5.30
Fuses in the engine
compartment
Removing fuse box C
Remove screw 2 and remove coolant
reservoir 3. Unscrew the four screws
4.Turn unit 5 over to access the fuses in
the engine compartment.
To identify the fuses, refer to the fuse
allocation label (see the next page for
details), located on unit 5.
FUSES (3/5)
2
3
C4
4
5
No operations should be
carried out on the cooling
circuit when the engine is
hot.
Risk of burns.
Check that no water or dust enters
unit 5 when it is being removed/re-
fitted.
Deactivate the Stop and
Start function for any opera-
tion performed in the engine
compartment.
Please note when work-
ing close to the engine that
it may be hot. The engine
cooling fan may also start
at any moment. The
 warning
light in the engine compartment re-
minds you of this.
Risk of injury.

5.43
On the roadPOSSIBLE CAUSESWHAT TO DO
Vibrations. Tyres not inflated to the correct pres-
sure, incorrectly balanced or dam-
aged. Check the tyre pressures: if this is not the
problem, have them checked by an ap-
proved dealer.
Coolant boiling in the coolant reservoir. Mechanical fault: damaged cylinder
head gasket.Stop the engine.
Contact an approved Dealer.
Smoke under the bonnet. Short circuit or cooling system leak.Stop, switch off the ignition, stand away
from the vehicle and contact an approved
dealer.
The oil pressure warning light comes
on: while cornering or braking The level is too low. Top up the engine oil (refer to the informa-
tion on “Engine oil level – Topping up/refill-
ing” in Section 4).
is slow to go out or remains lit under
acceleration Loss of oil pressure.
Stop the vehicle and contact an approved
Dealer.
White smoke from the exhaust. This is not necessarily a fault. Smoke
may be caused by regeneration of
the particle filter. Refer to the information on “Special fea-
tures of diesel versions” in Section 2.
OPERATING FAULTS (2/5)

5.44
On the roadPOSSIBLE CAUSESWHAT TO DO
Steering becomes heavy. Assistance overheating.
Fault with the electric assistance
motor.
Fault in the assistance system. Drive carefully at reduced speed, be aware
of the level of force in the steering wheel
needed to turn the wheels. Consult an ap-
proved dealer
The engine is overheating. The cool-
ant temperature warning light and the
STOP warning light come on. Engine cooling fan not working. Stop the vehicle, switch off the engine and
contact an approved Dealer.
Coolant leaks. Check the coolant reservoir: it should con-
tain fluid. If there is no coolant, consult an
approved Dealer as soon as possible.
OPERATING FAULTS (3/5)
Radiator: If there is a significant lack of coolant, remember that it must
never be topped up using cold coolant while the engine is very warm.
After any procedure on the vehicle which has involved even partial drain\
-
ing of the cooling system, it must be refilled with a new mixture prepar\
ed
in the correct proportions. Reminder: only products approved by our Technical
Department may be used for this purpose.

7.2
ALPHABETICAL INDEX (2/4)
emergency active braking......................................2.16 → 2.23
emergency brake assist.........................................2.16 → 2.23
emergency braking ................................................2.16 → 2.23
emergency spare wheel ............................................. 5.2 – 5.3
engine technical specifications .................................................. 6.5
engine coolant ..................................................................... 4.9
engine oil ...................................................................4.4 → 4.7
engine oil level ..................................................1.83, 4.4 → 4.7
engine specifications ........................................................... 6.5
environment ............................................................\
........... 2.13
ESC: electronic stability control .............................2.16 → 2.23
external lights and signals ...................................1.96 → 1.100
external temperature ......................................................... 1.93
F
filter .................................................................\
................... 4.10
fitting a radio ...................................................................... 5.40
foot panel ........................................................................\
... 5.37
front passenger air bag deactivation .....................1.70 → 1.72
front seat adjustment ......................................................... 1.21
front seats ........................................................................\
.. 1.21
fuel advice on fuel economy ..................................... 2.8 → 2.11
consumption ...................................................... 2.8 → 2.11
filling .............................................................. 1.102 – 1.103
grade ..................................................................\
........ 1.102
fuel consumption ..................................................... 2.8 → 2.11
fuel filler cap ....................................................... 1.102 – 1.103
fuel grade........................................................................\
. 1.103
fuel level ........................................................................\
.... 1.83
fuel repriming ...................................................... 1.102 – 1.103
fuel tank .............................................................. 1.102 – 1.103
fuel tank capacity ............................................................. 1.102
fuses ..................................................................\
....5.28 → 5.32G
gear lever......................................................2.14, 2.45
→ 2.49
grab handle........................................................................\
3.18
grip control ........................................................................\
. 2.22
ground clearance ........................................................ 6.6 – 6.7
H
handbrake........................................................................\
.. 2.15
handsfree.................................................................... 1.8 – 1.9
hazard warning lights signal ............................................ 1.101
headrest........................................................................\
..... 1.20
heated seats ...................................................................... 1.21
heating and air conditioning system ........3.2 – 3.3, 3.7 → 3.13
heating system ......................................3.2 → 3.6, 3.13 – 3.14
Hill Start Assist.......................................................2.16 → 2.23
HSA: Hill Start Assistance ................................................ 2.23
hubcap tool ...................................................... 5.4, 5.11 – 5.12
I
idle speed ........................................................................\
.. 2.43
indicators .............................................................\
............ 1.101
indicators: direction indicators ..................................................... 1.101
instrument panel ..............................................1.78 → 1.83
instrument panel ....................................................1.78 → 1.85
interior lighting: changing bulbs ............................................................. 5.27
interior trim maintenance ..................................................... 4.17 – 4.18
J
jack ...................................................................\
................... 5.4
K
keys ...................................................................\
........1.2 → 1.6