check engine Seat Leon 5D 2011 User Guide

88Cockpit
Cruise speed (Cruise control)* 
The warning lamp comes on when the cruise control system
is switched on.
The warning lamp  lights up when the cruise control system is switched
on. For further information on the cruise control system, see ⇒ page 178.
Indicator for open doors or tailgate* 
This warning lamp lights up if one of the doors or the tail-
gate is open. The warning light  should go off when all the doors are closed correctly.
The system also works when the ignition is switched off. It should go off ap-
prox. 15 seconds after the vehicle is locked. 
Electromechanical steering* 
For vehicles with power steering, the level of steering assistance depends
on the vehicle's speed and on the steering angle.
The warning lamp should light up for a few seconds when the ignition is
switched on. It should go out once the engine is started.
If the battery is disconnected, the indicator remains lit, even with the en-
gine running. The warning light only goes off after a distance of approx. 50
m. There is a fault in the electromechanical steering system if the lamp does
not go out or lights up whilst the vehicle is in motion. The warning lamp
may appear in two different colours to indicate faults. If it lights yellow, this
indicates a minor fault. If it lights red, seek workshop assistance immedi-
ately, as the steering assistance is not working; in this case you should not
keep driving. Stop the vehicle and seek technical assistance. The power
steering does not work if the battery is flat or if the engine is off (for exam-
ple, for towing). You should take into account that you will need considera-
bly more power than normal to steer the vehicle if the power steering is not
working correctly or at all.
For those vehicles fitted with ESC (ESP)* the function “Recommended steer-
ing manoeuvre” is included. See
⇒ page 184. 
Emission control system* 
This warning lamp monitors the exhaust system.
Warning lamp  flashes:
When there is misfiring that can damage the catalytic converter. Reduce
speed and drive carefully to the nearest specialised workshop to have the
engine checked.
The instrument panel displays the following message 1)
: EXHAUST GAS SEE
WORKSHOP.
Warning lamp  is lit:
If a fault has developed during driving which has reduced the quality of the
exhaust gas (e.g. lambda probe fault). Reduce speed and drive carefully to
the nearest specialised workshop to have the engine checked.
The following message is shown in the instrument panel display: EXHAUST
GAS SEE WORKSHOP . 
1)
Depending on the version of the model.

89
Cockpit
Electronic Stability Control ESC (ESP) *  / 
There are two control lamps for the electronic stability con-
trol. The  lamp provides information concerning the func-
tion and the  provides information on the disconnection
status
Both lamps come on together when the ignition is switched on and should
go out after approx. 2 seconds, which is how long the function check lasts.
This programme includes the ABS, EDL and ASR (TCS). This also includes
the brake assist system (BAS), automatic cleaning of the brake discs and
the trailer stability programme (TSP).
The warning lamp  has the following functions: ● It flashes when the ASR (TCS)/ESC (ESP) is activated when driving.
● It will light up continuously if there is a malfunction in the ESC (ESP).
● The ESC (ESP) lamp will also come on if a fault should occur in the ABS
because the ESC (ESP) operates in conjunction with the ABS.
If the ESP warning lamp  lights up and stays on after the engine is started,
this may mean that the control system has temporarily switched off the ESP.
In this case the ESC (ESP) can be reactivated by switching the ignition off
and then on again. If the warning lamp goes out, this means the system is
fully functional.
The  lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR (TCS) is disconnected after pressing the 
switch. Differential lock fault (EDL)*EDL operates along with the ABS in vehicles equipped with
the Electronic Stability Control ESC (ESP)*
A malfunction in the EDL is indicated by the ABS warning lamp . Take the
vehicle to a specialised workshop as soon as possible. For further informa-
tion on the EDL see ⇒ page 185, Electronic differential lock (EDL)*. 
Traction control system ASR (TCS)*  / 
The traction control system prevents the driven wheels from
spinning when the vehicle is accelerating
There are two warning lamps for the traction control system:  and . Both
lamps come on together when the ignition is switched on and should go out
after approx. 2 seconds, which is how long the function check lasts.
The  lamp has the following function:
● It flashes when the ASR (TCS) is activated while driving.
If the system is deactivated or if it has any fault, the warning lamp will re-
main lit. The ASR (TCS) lamp will also come on if a fault should occur in the
ABS because the ASR (TCS) operates in conjunction with the ABS. For fur-
ther information, see ⇒  page 182, Brakes
The  lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR (TCS) is disconnected after pressing the OFF
switch.
By pressing again, the ASR (TCS) function is reactivated and the warning
lamp switched off. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

113
Unlocking and locking
Closing the sliding/tilting sunroof
– Turn the rotary button to position A
⇒ fig. 68 ⇒ .
Opening the sliding/tilting sunroof
– Turn the rotary button to position B
. The sunroof opens to the
convenience position where wind noise is reduced.
– To open the roof further, turn the switch to position C
and hold
the switch in this position until the roof opens to the desired
position.
Tilting the sliding/tilting sunroof
– Turn the rotary button to position D
.
Always close the sliding/tilting sunroof fully if you park the vehicle or leave
it unattended ⇒ 
.
The sliding/tilting sunroof can be operated for up to about 10 minutes after
the ignition has been switched off, provided the driver door and the front
passenger door are not opened.
Sun visor
The sun visor is opened together with the sliding/tilting sunroof. If required,
it can be closed by hand when the sunroof is closed.
WARNING
● Incorrect use of the sliding/tilting sunroof can result in injury.
● Never close the sliding/tilting sunroof without checking there are no
obstructions, to do otherwise could cause serious injury to you and oth-
ers. Make sure that no one is in the path of the sliding/tilting sunroof.
● Always take the vehicle key with you when you leave the vehicle.
WARNING (Continued)
● Never leave children or disabled persons in the vehicle, particularly if
they have access to the keys. Unsupervised use of a key could mean that
the engine is started or that electrical equipment is used (e.g. electric
sliding/tilting sunroof). Risk of accident! The doors can be locked using
the remote control key. This could make the aid difficult in an emergency
situation.
● The sliding/tilting sunroof continues to function until one of the front
doors is opened and the key removed from the ignition.

Convenience closing*
Using the door lock
– Hold the key in the door lock of the driver door in the locking
position until the sliding/tilting sunroof is closed.
– Release the key to interrupt this function.
Using the remote control
– Push the lock button on the remote control for about 3 seconds.
The sliding/tilting sunroof is closed.
– Release the unlock button to interrupt the function.
– When the sliding/tilting sunroof has closed completely, the turn
signals flash once.
Note
The sliding/tilting sunroof rotary knob remains in the last position selected
if the roof is closed using convenience closing from outside the vehicle and
will have to be re-positioned the next time you drive. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

149
Air conditioning
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 speci-
alised 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

Safety FirstOperating InstructionsPractical TipsTechnical Specifications

156Air conditioning
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 AC
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 speci-
alised workshop.
CAUTION
● If you suspect that the air conditioner is damaged, switch it off with but-
ton AC
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
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 pud-
dle 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 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 vehi-
cle 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. 

161
Driving
If the engine does not start immediately, switch the starter off after 10 sec-
onds and try again after half a minute. If the engine still does not start, the
fuel pump fuse should be checked ⇒ page 250, Fuses.
WARNING
● Never start or run the engine in unventilated or closed rooms. The ex-
haust fumes contain carbon monoxide, an odourless and colourless poi-
sonous 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 fol-
low the instructions in ⇒ page 263, Jump-starting.
For the sake of the environment
Do not warm-up the engine by running the engine with the vehicle station-
ary. Start off immediately, driving gently. This helps the engine reach oper-
ating 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 start-
er to turn the engine on.
– Turn the ignition key to the starting position.
– Turn the ignition key to position ⇒ fig. 117 1
. The indicator
lamp  will light for engine pre-heating.
– When the warning lamp turns off, turn the key to position 2
to
start the engine. Do not press the accelerator.
– Let go of the ignition key as soon as the engine starts, the start-
er 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 sec-
onds 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 the ⇒ 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 83 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. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

188Intelligent technology
steering wheel to its limit places a load on the system, which causes noise.
It will also reduce the idling speed of the engine.
CAUTION
When the engine is running, do not turn the steering wheel to its limit for
more than 15 seconds. Otherwise, there is a risk of damaging the power
steering.
Note
● If the power steering should fail at any time or the engine is switched off
(for instance when being towed), the vehicle can still be steered. However,
more effort will be required to turn the steering wheel.
● If the system is leaking or malfunctioning, please take the vehicle to a
specialised workshop as soon as possible.
● The power steering system requires a special hydraulic fluid. The con-
tainer is located in the engine compartment (front left). The correct fluid lev-
el in the reservoir is important for the power steering to function properly.
The hydraulic fluid level is checked at the Inspection Service. 

189
Driving and the environment
Driving and the environment
Running-in Running in a new engine
The engine needs to be run in over the first 1500 km.
Up to 1000 kilometres
– Do not drive at speeds of more than 2/3 the maximum speed.
– Do not accelerate hard.
– Avoid high engine revolutions.
– Do not tow a trailer.
From 1000 to 1500 kilometres
– Speeds can be gradually increased to the maximum road speed
or maximum permissible engine speed (rpm).
During its first few hours of running, the internal friction in the engine is
greater than later on, when all the moving parts have bedded in.
For the sake of the environment
If the engine is run in gently, its life will be increased and its oil consump-
tion reduced. Braking capacity and braking distance
The braking capacity and braking distance are influenced by
driving situations and road conditions.
The efficiency of the brakes depends directly on the
brake pad wear. The
rate of wear of the brake pads depends to a great extent on the conditions
under which the vehicle is operated and the way the vehicle is driven. If you
often drive in town traffic, drive short distances or have a sporty driving
style, we recommend that you have the thickness of your brake pads
checked by an Authorised Service Centre more frequently than recommen-
ded in the Service Plan.
If you drive with wet brakes, for example, after crossing areas of water, in
heavy rainfall or even after washing the vehicle, the effect of the brakes is
lessened as the brake discs are wet or even frozen (in winter). In this case
the brakes should be dried by pressing the brake pedal several times.
WARNING
Longer braking distances and faults in the brake system increase the risk
of accidents.
● New brake pads must be run in and do not have the correct friction
during the first 400 km. However, the reduced braking capacity may be
compensated by pressing on the brake pedal a little harder. This also ap-
plies when the brake pads have to be changed further on.
● If brakes are wet or frozen, or if you are driving on roads which have
been salted, braking power may be lower than normal. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

192Driving and the environment
Drive anticipating the traffic situation
A vehicle uses most fuel when accelerating. When you anticipate the situa-
tion, you have to brake less often and, thus, accelerate less. If it is possible,
let the vehicle roll with a gear engaged, for example, if you see a red light
ahead. The braking effect achieved in this way helps to reduce the wear of
brakes and tyres; emissions and fuel consumption are reduced to zero (dis-
connection due to inertia).
Change gear early to save energy
An effective way of saving fuel is to change up quickly through the gears.
Running the engine at high rpm in the lower gears uses an unnecessary
amount of fuel.
Manual gearbox: Change from first to second gear as quickly as possible.
We recommend that, whenever possible, you change to a higher gear upon
reaching 2000 rpm. Follow the “recommended gear” indication that ap-
pears on the instrument panel ⇒ page 62.
Avoid driving at high speed
We advise you not to drive at the top speed permitted by the vehicle. Fuel
consumption, exhaust emissions and noise levels all increase very rapidly
at higher speeds. Driving at moderate speeds will help to save fuel.
Avoid idling
It is worthwhile switching off the engine when waiting in a traffic jam, at lev-
el crossings or at traffic lights with a long red phase. The fuel saved after
only 30 - 40 seconds is greater than the amount of fuel needed to restart
the engine.
The engine takes a long time to warm up when it is idling. Mechanical wear
and pollutant emissions are also especially high during this initial warm-up
phase. It is therefore best to drive off immediately after starting the engine.
Avoid running the engine at high speed.
Periodic maintenance
Periodic maintenance work guarantees that, before beginning a journey,
you will not consume more than the required amount of fuel. A well-serviced engine gives you the benefit of
improved fuel efficiency as well as maxi-
mum reliability and an enhanced resale value.
A badly serviced engine can consume up to 10% more fuel than necessary.
Avoid short journeys
To reduce the consumption and emission of polluting gases, the engine and
the exhaust filtration systems should reach the optimum service tempera-
ture.
With the engine cold, fuel consumption is proportionally higher. The engine
does not warm up and fuel consumption does not normalise until having
driven approximately four kilometres. This is why we recommend avoiding
short trips whenever possible.
Maintain the correct tyre pressures
Bear in mind that keeping the tyres at an adequate pressure saves fuel. If
the tyre pressure is just one bar too low, fuel consumption can increase by
as much as 5%. Due to the greater rolling resistance, under-inflation also
increases tyre wear and impairs handling.
The tyre pressures should always be checked when the tyres are cold.
Do not use winter tyres all year round as they increase fuel consumption by
up to 10%.
Avoid unnecessary weight
Every kilo of extra weight will put up the fuel consumption, so it is worth
checking the luggage compartment occasionally to make sure that no un-
necessary loads are being transported.
A roof rack is often left in place for the sake of convenience, even when it is
no longer needed. At a speed of 100-120 km/h your vehicle will use about
12% more fuel as a result of the extra wind resistance caused by the roof
rack even when it is not in use. 

195
Trailer towing
Trailer towing Instructions to follow
Your vehicle may be used to tow a trailer when fitted with the correct equip-
ment.
If the car is supplied with a factory-fitted towing bracket it will already have
the necessary technical modifications and meet the statutory requirements
for towing a trailer. If you wish to retrofit a towing bracket, consult
⇒ page 196.
Connectors
Your vehicle is fitted with a 12-pin connector for the electrical connection
between the trailer and the vehicle.
If the trailer has a 7-pin plug you will need to use an adapter cable. This is
available in any SEAT dealer.
Trailer weight / drawbar load
Never exceed the authorised trailer weight. If you do not load the trailer up
to the maximum permitted trailer weight, you can then climb correspond-
ingly steeper slopes.
The maximum trailer weights listed are only applicable for altitudes up to
1000 m above sea level. With increasing altitude the engine power and
therefore the vehicle's climbing ability are impaired because of the reduced
air density. The maximum trailer weight has to be reduced accordingly. The
weight of the vehicle and trailer combination must be reduced by 10% for
every further 1000 m (or part thereof). The gross combination weight is the
actual weight of the laden vehicle plus the actual weight of the laden trailer.
When possible, operate the trailer with the maximum permitted drawbar
load on the ball joint of the towing bracket, but do not exceed the specified
limit. The figures for
trailer weights and drawbar loads that are given on the data
plate of the towing bracket are for certification purposes only. The correct
figures for your specific model, which may be lower than these figures for
the towing bracket, are given in the vehicle documents or in ⇒ chapter Tech-
nical Data.
Distributing the load
Distribute loads in the trailer so that heavy objects are as near to the axle as
possible. Loads carried in the trailer must be secured to prevent them mov-
ing.
Tyre pressure
Set tyre pressure to the maximum permissible pressure shown on the stick-
er on the inside of the fuel tank flap. Set the tyre pressure of the trailer tyres
in accordance with the trailer manufacturer's recommendations.
Exterior mirrors
Check whether you can see enough of the road behind the trailer with the
standard mirrors. If this is not the case, you should have additional mirrors
fitted. Both exterior mirrors should be mounted on hinged extension brack-
ets. Adjust the mirrors to give sufficient vision to the rear.
WARNING
Never transport people in a trailer. This could result in fatal accidents.
Note
● Towing a trailer places additional demands on the vehicle. We recom-
mend additional services between the normal inspection intervals if the ve-
hicle is used frequently for towing a trailer.
● Find out whether special regulations apply to towing a trailer in your
country. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications