2010 Seat Leon 5D engine coolant

Cockpit
82Fuel level / reserve
z
This symbol lights up to indicate that the fuel tank is under
the reserve level.It lights up when only 7 litres of fuel remain in the tank. You will also hear a
warning signal. It reminds you to fuel up the fuel tank as soon as possible
⇒ page 214.
The instrument panel displays the following message
11): PLEASE REFUEL! .
Coolant level* / temperature
v
The warning lamp lights up if the coolant temperature is too
high or if the coolant level is too low.There is a fault if:•The warning symbol does not go out again after a few seconds.•The warning lamp lights up or flashes while the vehicle is moving, and
three acoustic warning signals ⇒ are emitted.
This means that either the coolant level is too low or the coolant temperature
is too high.
Coolant temperature too high
The instrument panel displays the following message
12): CHECK COOLANT
INSTRUCTION MANUAL ⇒ page 228.
First look at the coolant temperature gauge. The coolant temperature is too
high if the needle is over the warning area on the dial. Stop the vehicle,
switch the engine off and wait for it to cool down. Check the coolant level.
If the coolant level is correct, the overheating may be caused by a malfunction
of the radiator fan. Check the radiator fan fuse and have it replaced if neces-
sary ⇒page 254.
If the warning lamp lights up again after driving on for a short distance, stop
the vehicle and switch the engine off . Contact an Authorised Ser vice Centre
or a specialised workshop.
Coolant level too low
The instrument panel displays the following message13): STOP CHECK
COOLANT INSTRUCTION MANUAL .
START STOP
ACTIVE
Warning: Start-Stop system activated. Vehicle in Stop
mode.
SWITCH OFF
Warning: Start-Stop system activated. Switch off the igni-
tion when you leave the vehicle.
STOP
TRANSMISSION TOO HOT
Warning: Stop the engine. Gearbox overheated.
BRAKE
Warning: To start the engine, press the brake pedal. Only
in vehicles with automatic gearbox.
COASTING FUNCTION
Warning: Coasting mode active. Transmission engaged.
Only in vehicles with automatic gearbox.
CHECK
SAFELOCK
Notification of central locking function activated.
a)These messages may vary according the version of the vehicle model.11)Depending on the model version.
12)Depending on the model version.13)Depending on the model version.
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Cockpit83
Safety First
Operating Instructions
Practical Tips
Technical Specifications
First look at the coolant temperature gauge. If the needle is in the normal
range, top up with coolant at the earliest opportunity
⇒.
WARNING
•If your vehicle is immobilised for technical reasons, move it to a safe
distance from traffic. Turn the engine off, turn the hazard lights on and
place the warning triangle.•Never open the bonnet if you can see or hear steam or coolant escaping
from the engine compartment. Risk of scalding. Wait until you can no
longer see or hear escaping steam or coolant.•The engine compartment is a dangerous area! Before carrying out any
work in the engine compartment, switch off the engine and allow it to cool
down. Always note the corresponding warnings ⇒page 221.
Rear fog light


This warning lamp lights up when the rear fog light is switched on

. For
further information see ⇒page 117.
Turn signals

The indicator lamp flashes when the turn signals are in oper-
ation.Depending on which turn signal is operating, either the left
 or right

turn
signal lamp flashes. Both indicator lamps will flash at the same time when
the hazard warning lights are switched on.
If any of both turn signals fails, the indicator lamp will start flashing twice
faster than normal. For further information on the turn signals, please see
⇒page 124.
Engine management*
%0#

This warning lamp monitors the engine management system
for petrol engines.
The warning lamp
%0# (Electronic Power Control) lights up when the ignition
is switched on to show that the lamp is working properly. It should go out
once the engine is started.
If there is a fault in the electronic engine management system while you are
driving, this warning lamp will light up. Stop the vehicle and seek technical
assistance.
Glow plug system / Engine fault
D
The warning lamp lights up to show that the glow plugs are
preheating. It flashes if there is an engine fault.
Warning lamp
D is lit
The warning lamp D lights up while the glow plugs are preheating. When the
warning lamp goes off, the engine should be started straight away.
Warning lamp
D flashes
If a fault develops in the engine management system while you are driving,
the glow plug lamp will flash
D. Take the vehicle to a specialised workshop
as soon as possible and have the engine checked.
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Air conditioning
152
– Use the air distribution control to guide the flow of air in the required direction: (to the windscreen), (to the upper
body), (to the footwell) and (to the windscreen and to the
footwell).Heating
Maximum heat output, which is needed to defrost the windows quickly, is
only available when the engine has reached its operating temperature.
Air conditioner
When the air conditioning system is switched on, not only the temperature,
but also the air humidity in the vehicle interior is reduced. This improves comfort for the vehicle occupants and prevents misting of the windows when
the ambient air humidity is high.
If the air conditioning system cannot be switched on this may be caused by
the following reasons:
•The engine is not running.•The blower is switched off.•The outside temperature is below +3 °C.•The air conditioning system compressor has been temporarily switched
off because the engine coolant temperature is too high.•The air conditioner fuse is faulty.•Another fault in the vehicle. Have the air conditioner checked by a special-
ised workshop.
Air recirculation mode
Air recirculation mode prevents fumes or unpleasant smells from coming from the outside.
<




Fig. 109 On the dash panel: Climatic controls
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Air conditioning159
Safety First
Operating Instructions
Practical Tips
Technical Specifications
comfort for the vehicle occupants and prevents misting of the windows when
the ambient air humidity is high.
If the air conditioning system cannot be switched on this may be caused by
the following reasons:
•The engine is not running.•The button is disconnected.•The outside temperature is below +3 °C.•The air conditioning system compressor has been temporarily switched
off because the engine coolant temperature is too high.•The air conditioner fuse is faulty.•Another fault in the vehicle. Have the air conditioner checked by a special-
ised workshop.Caution
•If you suspect that the air conditioner is damaged, switch it off with the button to prevent further damage and have it checked by a specialised
workshop.•Repairs to the air conditioner require specialist knowledge and special
tools. Therefore, we recommend you to take the vehicle to a specialised work-
shop.Note
•If the humidity and temperature outside the vehicle are high, condensa-
tion can drip off the evaporator in the cooling system and so forming a puddle
underneath the vehicle. This is completely normal and there is no need to
suspect a leak.•Keep the air intake slots in front of the windscreen free of snow, ice and
leaves to ensure heating and cooling are not impaired, and to prevent the
windows from misting over.
•The air from the vents flows through th e vehicle interior and is extracted
by slots designed for this purpose. Therefore, do not cover these slots with
items of clothing or other objects.•The air conditioner operates most effectively with the windows and the
sliding/tilting sunroof* closed. However, if the temperature inside the vehicle
is excessive because of the sun, the air inside can be cooled faster by opening
the windows for a short time.•Do not smoke while air recirculation mode is on, as smoke drawn into the
air conditioning system leaves a residue on the evaporator, producing a
permanent unpleasant odour.•It is advisable to connect the air conditioning at least once a month, to
lubricate the system gaskets and prevent leaks. If a decrease in the cooling
capacity is detected, an Authorised Service Centre should be consulted to
check the system.
AC
AC
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Driving
166Driving with LPG*Your SEAT vehicle has a bivalent engine able to run on either LPG or petrol.
The LPG tank ⇒page 216, “Refuelling with LPG” is in the spare wheel well
⇒ .
It is possible to change from LPG to petrol while the engine is running, even
if the vehicle is moving, by pressing the button located on the centre
console ⇒ fig. 118. The selected operating mode is displayed on the indi-
cator lamp on the instrument panel ⇒page 80.
Starting the engine
The engine is always started with petrol, even when LPG was being used
when it was switched off.
A blue warning lamp ⇒page 80 indicating that the engine is cold is visible
on the instrument panel until the engine temperature reaches 30 °C. On
reaching this temperature, the lamp goes out and it is possible to switch to
LGP mode. Automatic switch from petrol to LPG
When the engine is turned on and the following conditions are met, the
system will automatically switch from petrol mode to LPG mode, the notifica-
tion
changed to GAS mode is displayed and the green indicator lamp on the
instrument panel lights up:
•There is enough LPG in the tank.•The temperature of the vehicle coolant is above 30 °C.•Engine speed while driving is above 1200 rpm.
Automatic switch from LPG to petrol
When the vehicle is operating in LPG mode and one of these conditions is
met, the system automatically switches to petrol mode, the notification
changed to petrol mode is displayed and the green indicator lamp on the
instrument panel goes out:•When the engine is started.•If the LPG tank is empty.•If there is a fault in the LPG system.•At very low temperatures, below - 10 °C.
Manual switch from petrol to LPG
Press the button on the centre console ⇒ fig. 118 to change mode. The
notification changed to GAS mode is displayed. When the following condi-
tions are met, the system switches to LPG mode, the green indicator lamp on
the instrument panel lights up and the notification displayed changes to
changed to GAS mode .•There is enough LPG in the tank.•The temperature of the vehicle coolant is above 30 °C.•Engine speed while driving is above 1200 rpm.
Fig. 118 Centre console:
gas system control
switch.
GAS
GAS
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Driving
168Start-Stop function interruption
In the following situations, the Start-Stop function will be interrupted and the
engine will automatically start:•The vehicle starts moving.•The brake pedal is pressed several times in a row.•The battery has been discharged excessively.•The Start-Stop System is manually deactivated.•The windscreen de-mist function is turned on.•The temperature of the passenger compartment exceeds the comfort
limits (button ⇒page 157, fig. 113 should be selected).•If in an increase in airflow ⇒page 157, fig. 113 is required for more
than three presses.•Temperature setting HI or LO is selected.•The engine coolant temperature is insufficient.•The alternator is faulty, for example the V-belt has ruptured.•If any of the conditions described in the previous section are not fulfilled.WARNING
Never allow the vehicle to move with the engine off for any reason. You
could lose control of your vehicle. This could cause an accident and serious
injury.•The brake ser vo does not work with the engine off. You need more force
to stop the vehicle.•Power steering does not work when the engine is not running. That is
why it is much more difficult to turn the steering wheel.•Disconnect the Start-Stop system when driving through water (fording
streams, etc.).
Note
•For vehicles with the Star t-Stop function and a manual gearbox, when the
engine is started, the clutch must be pressed.•When the conditions for the Start-Stop function are not fulfilled, the
instrument panel displays the Start-Stop indicator dimmed.•The vehicle can be restarted by rotating the steering wheel three times,
that is, more than 270°.Switching the Start-Stop function on and offEvery time the ignition is switched on, the Start-Stop function is
automatically switched on.
ACA11
A10
Fig. 119 The Start-Stop
function button.
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Trailer towing
200•Find out whether special regulations apply to towing a trailer in your
country.Ball coupling of towing bracket*Depending on the model version, the spherical head on the trailer hook may
be found in the tool box.
The ball coupling is provided with instructions on fitting and removing the
ball coupling of the towing bracket.
WARNING
The towing bracket ball coupling must be stored securely in the luggage
compartment to prevent them being flung through the vehicle and causing
injury.
Note
•By law, the ball coupling must be re moved if a trailer is not being towed
and it obscures the number plate.Driving tipsDriving with a trailer always requires extra care.Weight distribution
The weight distribution of a loaded trailer with an unladen vehicle is very
unfavourable. However, if this cannot be avoided, drive extra slowly to allow
for the unbalanced weight distribution. Speed
The stability of the vehicle and trailer is reduced with increasing speed. For
this reason, it is advisable not to drive at the maximum permissible speed in
an unfavourable road, weather or wind conditions. This applies especially
when driving downhill.
You should always reduce speed immediately if the trailer shows the slightest
sign of
snaking . Never try to stop the “snaking” by increasing speed.
Always brake in due course. If the trailer has an overrun brake, apply the
brakes gently at first and then, firmly. This will prevent the jerking that can be
caused by the trailer wheels locking. Select a low gear in due course before
going down a steep downhill. This enables you to use the engine braking to
slow down the vehicle.
Reheating
At very high temperatures and during prolonged slopes, driving in a low gear
and high engine speed, always monitor the coolant temperature gauge
⇒ page 55.
Electronic Stability Programme*
The ESP* system helps to stabilise the trailer in case of skidding or rocking.
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Checking and refilling levels221
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Filter pre-heater
Your vehicle is fitted with a fuel filter glow plug system, making it well
equipped for operation in winter. This ensures that the fuel system remains
operational to approx. -24 °C, provided you use winter diesel which is safe to
-15 °C.
However, if the fuel has waxed to such an extent that the engine will not start
at temperatures of under -24 °C, simply place the vehicle in a warm place for
a while.
Caution
Do not mix fuel additives (thinners or similar products) with diesel fuel.Working in the engine compartmentSafety instructions on workin
g in the engine compartment
Any work carried out in the engine compartment or on the
engine must be carried out cautiously.Before starting any work on the engine or in the engine compart-
ment:
1. Switch off the engine and remove the key from the ignition.
2. Apply the handbrake.
3. Move the gear lever to neutral or the selector lever to position P.
4. Wait for the engine to cool down.
5. Keep children away from the vehicle. 6. Raise the bonnet
⇒page 223.
You should not do any work in the engine compartment unless you know
exactly how to carry out the jobs and have the correct tools! Have the work
carried out by a specialised workshop if you are uncertain.
All service fluids and consumables, e.g. coolant, engine oil, spark plugs and
batteries, are being constantly developed. SEAT provides a constant flow of
information to the Authorised Service Centres concerning modifications. For
this reason, we recommend you to have service fluids and consumables
replaced by an Authorised Service Centre. Please observe the relevant
instructions ⇒page 212. The engine compartment of the vehicle is a
hazardous area ⇒.
WARNING
All work on the engine or in the engine compartment, e.g. checking and
refilling fluids, involves a risk of injury and scalding as well as the risk of
accident or fire.•Never open the bonnet if you see steam, smoke or coolant escaping
from the engine compartment. Otherwise, there is a risk of sustaining
burns. Wait until no more steam or coolant is emitted, then allow the
engine to cool before carefully opening the bonnet.•Switch off the engine and remove the key from the ignition.•Apply the handbrake and move the gear lever to neutral or selector
lever to position P.•Keep children away from the vehicle.•Never touch hot engine parts. There is a risk of burns.•Never spill liquids on a hot engine or on a hot exhaust gas system. This
is a fire hazard.•Avoid causing short-circuits in the electrical system, particularly at the
points where the jump leads are attached ⇒page 268. The battery could
explode.
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