engine Seat Leon 5D 2009 Owner's Guide

Heating, Ventilation and Air conditioning
154Air 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 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 conditioning fuse is faulty.•Another fault in the vehicle. Have the air conditioning checked by a qual-
ified workshop.Caution
•If you suspect that the air conditioning is damaged, switch it off with the button to prevent further damage and have it checked by a qualified
workshop.•Repairs to the air conditioning system require specialist knowledge and
special tools. Therefore, we recommend you to take the vehicle to a qualified
workshop.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 the passenger compartment and is
extracted by slots designed for this purpose. Therefore, do not cover these
slots with items of clothing or other objects.•The air conditioning system operates most effectively with the windows
and the sliding/tilting roof* closed. However, if the vehicle has been over-
heated by sun, the air inside can be cooled quicklier 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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156•Adjust the driver seat or steering wheel so that there is a distance of at
least 25 cm between the steering wheel and your chest ⇒page 155,
fig. 116 . If you fail to observe the minimum distance, the airbag will not
protect you. Risk of fatal injury.•If your physical constitution does not allow you to maintain the
minimum distance of 25 cm, contact an Authorised Service Centre. The
Authorised Service Centre will help you to decide if special specific modifi-
cations are necessary.•If you adjust the steering wheel so that it points towards your face, the
driver airbag will not protect you properly in the event of an accident. Make
sure that the steering wheel points towards your chest.•When driving, always hold the steering wheel with both hands on the
outside of the ring at the 9 o'clock and 3 o'clock positions. Never hold the
steering wheel at the 12 o'clock position, or in any other manner (e.g. in
the centre of the steering wheel, or on the inside of the rim). In such cases,
you could receive severe injuries to the arms, hands and head.
SafetyElectronic stabilisation programme (ESP)*
ESP helps make driving safer in certain situations.The Electronic Stabilisation Program (ESP) contains the electronic differential
lock (EDL) and the traction control system (TCS). The ESP function works
together with the ABS. Both warning lamps will light up if the ESP or ABS
systems are faulty.
The ESP is started automatically when the engine is started.
The ESP is always active, and cannot be switched off. With the ESP switch it is
only possible to switch TCS off.
The TCS can be deactivated when in cases where wheel sliding is desirable.
For example:•When driving with snow chains,
WARNING (continued)
Fig. 117 Detail of the
centre console: ESP
button
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Driving157
Safety First
Controls and equipment
Practical tips
Technical Data
•when driving in deep snow or on loose surfaces,•when rocking the vehicle backwards and forwards to free it from mud, for
example.
Next, the button should be pressed to reactivate the TCS.
When does the warning light switch on or flash ?•On switching the ignition on, it lights up for about two seconds to carry
out a function control.•The warning lamp will start flashing when the vehicle is moving if the ESP
or the TCS is activated. The warning lamp will light up slowly if the TCS is
switched off.•It will light up continuously if there is a malfunction in the ESP.WARNING
•The electronic stabilisation programme (ESP) cannot defy the laws of
physics. This should be kept in mind, particularly on slippery and wet
roads and when towing a trailer.•Always adapt your driving style to suit the condition of the roads and
the traffic situation. Do not let the extra safety afforded by ESP tempt you
into taking any risks when driving, this can cause accidents.•Please refer to the corresponding warning notes on ESP in ⇒page 181,
“Intelligent technology”.
Ignition lockPosition of the ignition keyIgnition switched off, steering lock
In this position ⇒ fig. 118 the ignition and the engine are OFF and the
steering may be locked.
For the Steering lock to operate without the ignition key, turn the steering
wheel until it locks with an audible sound. You should always lock the
steering wheel when you leave your vehicle. This will help prevent theft of the
vehicle ⇒.
Switching the ignition or the glow plug system on
Turn the ignition key to this position and release it. If the key cannot be turned
or it is difficult to turn from position to position , move the steering
wheel back and forth until it loosens up.

Fig. 118 Ignition key
positions
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A1
A0
A1
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158Starting
The engine is started when the key is in this position. Electrical components
with a high power consumption are switched off temporarily.
Every time the vehicle is started again, the ignition key must be turned to
position . The repetitive start prevention lock of the ignition prevents
possible damage to the starter motor if the engine is already running.
WARNING
•The ignition key must NOT be removed from the lock until the vehicle
comes to a standstill. Otherwise, the steering could be immediately
blocked- Risk of accident!•Always remove the key from the ignition lock when leaving the vehicle,
even for a short period. This is especially important if children or disabled
people are left alone in the vehicle. They could accidentally start the
engine or work electrical equipment such as the electric windows, conse-
quently resulting in an accident.•Unsupervised use of the keys could start the engine or any electrical
system, such as the electric window. This could result in serious injury.Caution
The starter motor will only work when the engine is stopped (ignition key
position ).Electronic immobiliser
The immobiliser prevents unauthorised persons from driving
the vehicle.Inside the key there is a chip that deactivates the electronic immobiliser auto-
matically when the key is inserted into the ignition. The immobiliser will be activated again automatically as soon as you pull the
key out of the ignition lock.
The engine can only be started using a genuine SEAT key with its correct code.
Note
A perfect operation of the vehicle is ensured if genuine SEAT keys are used.Starting and stopping the engineStarting petrol engines
The engine can only be started using a genuine SEAT key with
its correct code.– Move the gear lever to the neutral position and depress the
clutch pedal thoroughly and hold it in this position for the starter
to turn the engine on.
– Turn the ignition key to the starting position ⇒page 157.
– Le t go o f t he ign itio n key as so o n as t he eng in e sta r ts; t he sta r te r motor must not run on with the engine.After starting a very hot engine, you may need to slightly press down the
accelerator.
When starting a very cold engine, it may be a little noisy for the first few
seconds until oil pressure has built up in the hydraulic valve compensators.
This is quite normal, and no cause for concern.
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Driving159
Safety First
Controls and equipment
Practical tips
Technical Data
If the engine does not start immediately, switch the starter off after
10 seconds and try again after half a minute. If the engine still does not start,
the fuel pump fuse should be checked
⇒page 249, “Fuses”.
WARNING
•Never start or run the engine in unventilated or closed rooms. The
exhaust fumes contain carbon monoxide, an odourless and colourless
poisonous gas. Risk of fatal accidents. Carbon monoxide can cause loss of
consciousness. It can also cause death.•Never leave the vehicle unattended if the engine is running.•Never use “cold start sprays”, they could explode or cause the engine
to run at high revs. Risk of injury.Caution
•When the engine is cold, you should avoid high engine speeds, driving at
full throttle and over-loading the engine. Risk of engine damage.•The vehicle should not be pushed or towed more than 50 metres to start
the engine. Unburnt fuel could enter the catalytic converter and damage it.•Before attempting to push-start or tow a vehicle in order to start it, you
should first try to start it using the battery of another vehicle. Note and follow
the instructions ⇒page 263, “Jump-starting”.For the sake of the environment
Do not warm-up the engine by running the engine with the vehicle stationary.
You should drive off as soon as you start the engine. This helps the engine
reach operating temperature faster and reduces emissions.
Starting diesel engines
The engine can only be started using a genuine SEAT key with
its correct code.– Move the gear lever to the neutral position and depress the
clutch pedal thoroughly and hold it in this position for the starter
to turn the engine on.
– Turn the ignition key to the starting position.
– Turn the ignition key to position ⇒page 157, fig. 118 . The
indication lamp
 will light for engine pre-heating.
– When the warning lamp turns off, turn the key to position to start the engine. Do not press the accelerator.
– Let go of the ignition key as soon as the engine starts, the starter motor must not be allowed to run on with the engine.
When starting a very cold engine, it may be a little noisy for the first few
seconds until oil pressure has built up in the hydraulic valve compensators.
This is quite normal, and no cause for concern.
If there are problems starting the engine, see ⇒page 263.
Glow plug system for the diesel engine
To avoid unnecessary discharging of the battery, do not use any other major
electrical equipment while the glow plugs are pre-heating.
Start the engine as soon as the glow plug warning lamp ⇒page 78 goes out.
Starting the engine after the fuel tank has been completely run dry
If the fuel tank has been completely run dry, it may take longer than normal
(up to one minute) to start the engine after refuelling with diesel fuel. This is
because the system must eliminate air first.
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160
WARNING
•Never start or run the engine in un ventilated or closed rooms. The
exhaust fumes contain carbon monoxide, an odourless and colourless
poisonous gas. Risk of fatal accidents. Carbon monoxide can cause loss of
consciousness. It can also cause death.•Never leave the vehicle unattended if the engine is running.•Never use “cold start sprays”, they could explode or cause the engine
to run at high revs. Risk of injury.Caution
•When the engine is cold, you should avoid high engine speeds, driving at
full throttle and over-loading the engine. Risk of engine damage.•The vehicle should not be pushed or towed more than 50 metres to start
the engine. Unburnt fuel could enter the catalytic converter and damage it.•Before attempting to push-start or tow a vehicle in order to start it, you
should first try to start it using the battery of another vehicle. Note and follow
the instructions ⇒page 263, “Jump-starting”.For the sake of the environment
Do not warm-up the engine by running the engine with the vehicle stationary.
You should drive off as soon as you start the engine. This helps the engine
reach operating temperature faster and reduces emissions.Switching the engine off– Stop the engine.
– Turn the ignition key to position ⇒page 157, fig. 118 .
After switching the engine off, the radiator fan may run on for up to 10
m i n u t e s . I t is a l s o p o ss i b l e t h a t t h e fa n tu r ns i t s e l f o n o n ce m o r e i f t h e co o la n t
temperature increases due to the heat accumulated in the engine compart-
ment or due to its prolonged exposure to solar radiation.
WARNING
•Never switch the engine off until the vehicle is completely stationary.•The brake servo works only when the engine is running. With the
engine switched off, more strength is needed to brake. As normal brake
operation cannot be performed, risk of accidents and serious injury may
exist.•The steering lock can be immediately blocked once the key is removed
from the ignition lock. The vehicle cannot be steered. Risk of accident.Caution
If the engine has been driven hard for a long period, the engine could over-
heat when it is switched off. Risk of engine damage. For this reason, you
should idle the engine for approx. 2 minutes before you switch it off.
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Safety First
Controls and equipment
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Technical Data
Driving with LPG*
switch.
Warning light OFF – Running on petrol
Warning light ON – Running on LPG
Your SEAT vehicle has a bivalent engine able to run on either LPG or petrol.
The LPG tank ⇒page 210, “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 ⇒fig. 119 . The
selected operating mode is shown by the lights OFF (running on petrol)
and ON (running on LPG).
Starting the engine
The engine is always started with petrol, even when LPG was being used
when it was switched off. Automatic switch from petrol to LPG
After checking, the system automatically switches from petrol to LPG
provided the following conditions are met:
•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.•The button is pressed and the warning light
ON is flashing or
the engine was using LPG when it was switched off.
When these conditions are met, the system switches to LPG mode and the ON
lamp is lit .
Automatic switch from LPG to petrol
The system automatically switches from LPG to petrol in the following cases:•When the engine is started.•If the LPG tank is empty.
Fig. 119 Centre console: gas system control warning
lights and switch.
A1
GAS
A2A3
GAS
A1
A2
A3
GAS
A1
A3
A3
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162•If there is a fault in the LPG system.•At very low temperatures below minus 10°C.
Manual switch from petrol to LPG
Press the GAS button to switch modes. When the necessary conditions are
met, the system switches to LPG mode and the ON lamp is lit. If the ON
lamp flashes, the following conditions have not been met:•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.
When these conditions are met, the system switches to LPG mode and the ON
lamp is lit .
Manual switch from LPG to petrol
Press the button to switch modes. When the OFF lamp is lit, the
vehicle is running on petrol.
Running on petrol
Run the engine with petrol for short journeys at regular intervals to avoid
problems in the petrol system.WARNING
LPG is a highly explosive and inflammable substance. It may cause severe
burns and other injury.•Due care must be taken to avoid any risk of fire or explosion.•When parking the vehicle in a closed area (for example in a garage),
make sure that there is adequate ventilation, either natural or mechanical,
to neutralise the LPG in the event of a leak.
Note
•If frequent short journeys are made, especially when the outside temper-
ature is low, the vehicle will tend to run on petrol more often than on LPG.
Therefore, the petrol tank may empty before the LPG tank.Start-Stop function*Description and operationThe Start-Stop function stops the engine when the vehicle is
stopped and starts it automatically when required.
– When the vehicle is stopped, put it in neutral and release the clutch pedal. The engine will stop.
– When the clutch pedal is pressed, the engine starts again.
– The instrument panel screen displays information about the status of the Start-Stop function ⇒page 164, fig. 121 .Start-Stop function conditions•The driver's seat belt must be buckled.•The engine hood must be closed.•The engine must be at operating temperature•The steering wheel must be straight.•The vehicle must be on flat ground.•The vehicle must not be in reverse.•A trailer must not be connected.
A1
A3
A3A3GAS
A1
A2
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Driving163
Safety First
Controls and equipment
Practical tips
Technical Data
•The temperature of the passenger compartment must be within the
convenience limits (button ⇒page 152, fig. 114 should be selected).•The windscreen de-mist function must be off.•If not , it requires an increase in airflow ⇒page 152, fig. 114 for more
than three presses.•Either of the temperature settings, HI or LO must not be set.•The driver's door must be closed.•The diesel particulate filter must not be in regeneration mode, for diesel
engines.•The battery charge must not be low for the next start.•The battery temperature must be between -1°C and 55°C.•The parking assistant, Park Assist* must not be activated.
Interrupting the Start-Stop function
In the following situations, the Start-Stop function will be interrupted and the
engine will automatically start:•The vehicle is moving.•The brake pedal is pressed several times in a row.•The battery has been discharged excessively.•The Start-Stop System has been manually deactivated.•The windscreen de-mist function is turned on.•The temperature of the passenger compartment exceeds the convenience
limits (button ⇒page 152, fig. 114 should be selected).•If in an increase in airflow ⇒page 152, fig. 114 is required for more
than three presses.•Either of the temperature settings, 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 servo does not work when the engine is not running. You
need more force to stop the vehicle.•Power assisted steering does not work when the engine is not running.
That is why it is much more difficult to turn the steering wheel.Note
•For vehicles with the Start-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 dash
panel displays the Start-Stop indicator dimmed.•The vehicle can be restarted by rotating the steering wheel three times,
that is, more than 270°.
ACA11
A10
ACA11
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164Deactivating and activating the Start-Stop functionEvery time the ignition is switched on, the Start-Stop function is
automatically switched on.
Manually deactivating the Start-Stop function
–Press the ⇒fig. 120 located in the centre console. When the
Start-Stop function is deactivated, the pushbutton indicator
lights.
– If the Start-Stop function is operating then the engine starts immediately.
Manually activating the Start-Stop function
–Press the ⇒fig. 120 located in the centre console. The indi-
cator on the button will go out.
Driver messagesWhen the engine is turned off by the Start-Stop function, this is displayed on
the dash panel.
Note
There are different versions of the dash panel; the display of indications on
the screen may differ.
Fig. 120 The Start-Stop
function button.
AAAA
Fig. 121 Display on the
dash panel during Start-
Stop function operation.
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