2015 Seat Altea engine overheat

Operation
●
Due care must be taken to avoid any risk of
fire or explosion.
● When parking the vehicle in a closed area
(e.g. in a garage), make sure that there is ad-
equate ventilation, either natural or mechani-
cal, to neutralise the LPG in the event of a
leak. Note
● The values shown in the average fuel con-
sumption and distance to empty indications
on the multifunction display (MFI) 1)
on the in-
strument panel display 2)
are approximate val-
ues only.
● Two different consumption values are given
on the MFI, depending on whether the vehi-
cle is running in gas or petrol mode.
● Please check the fuel level on the fuel level
gauge on the instrument panel ››› page 33.
● If frequent short journeys are made, espe-
cially when the outside temperature is low,
the vehicle will tend to run on petrol more of-
ten than on LPG. Therefore, the petrol tank
may empty before the LPG tank. Engine coolant temperature gauge
 Fig. 29
Instrument panel: Engine coolant
temperature gauge. Needle in cold zone
A Avoid high engine speeds and heavy engine
loads
››› Fig. 29 .
Needl e in norm
al zone B In normal driving conditions, the needle
should be in the middle section of the scale.
The temperature may also rise when the en-
gine is working hard, especially at high out-
side temperatures. This is no cause for con-
cern as long as the warning lamp does notlight up and no warning message* appears
on the dash panel display.
Needle in warning zone
C The warning lamp*
››› Fig. 30 2 will light up
if the needle is in the warning zone. The fol-
lowing warning message appears on the in-
strument panel display 3)
. Stop the vehicle
and sw it

ch off the engine. Check the coolant
level ››› page 169 ››› .
Even if the coolant level is correct do not con-
tinue driving . You should obtain technical as-
s i

stance. WARNING
When working in the engine compartment, al-
ways observe the safety warnings
››› page 163. CAUTION
Accessories in front of the air inlet reduce the
cooling effect of the coolant. At high outside
temperatures and high engine loads, there is
a risk of the engine overheating. 1)
Optional equipment
2) Depending on the model version
3) Depending on the version of the model.
34

Dash panel
● Coolant symbol  with the warning mes-
s ag
e STOP SEE COOLANT INSTRUCTION MAN-
UAL.
● Engine oil pressure symbol  with the
warnin

g message STOP ENGINE OIL PRESSURE
LOW! INSTRUCTION MANUAL.
Warning messages, Priority 2 (yellow)
If one of these faults occurs, the correspond-
ing warning lamp lights up and is accompa-
nied by an audible warning. Check the corre-
sponding function as soon as possible al-
though the vehicle may be used without risk.
If several priority 2 warning messages are de-
tected at the same time, the symbols are dis-
played one after the other for about 2 sec-
onds at a time. After a set time, the informa-
tion text will disappear and the symbol will
be shown as a reminder at the side of the
display.
Priority 2 warning messages will not be
shown until all Priority 1 warning messages
have been dealt with!
Examples of priority 2 warning messages
(yellow): 1)
● Fuel warning light with the information text
PLEASE REFUEL . ●
Windscreen washer fluid symbol  with the
inform

ation text REFILL WINDSCREEN WASHER
FLUID. Top up the washer fluid level.
Information messages displayed on
the screen*
Messages a)Description
SERVICEThe service interval has ended. Take
the vehicle to a Technical Service.
IMMOBILISERImmobiliser system active. The vehicle
will not start. Take the vehicle to a
Technical Service.
ERRORInstrument panel faulty. Take the vehi-
cle to a Technical Service.
CLEAN AIR FIL-
TERWarning: The air filter must be cleaned
NO KEYWarning: Correct key cannot be found
in the vehicle.
KEY BATTERYWarning: Key battery low. Change the
battery.
CLUTCHWarning: Press the clutch to start. In
vehicles with manual gearbox and
Start-Stop system.
--> P/NWarning: Place the selector level in po-
sition P/N to start. Only in vehicles
with automatic gearbox.
Messages a)Description
--> PWarning: Place the selector lever in po-
sition P to stop the engine.
STARTINGWarning: The engine starts automati-
cally. Start-Stop system activated.
START MAN-
UALLYWarning: The engine must be started
manually. Start-Stop system activated
ERROR START- STOPWarning: Start-Stop system error.
START-STOP
IMPOSSIBLEWarning: Although the Start-Stop sys-
tem is switched on, the engine cannot
be stopped automatically. Not all the
necessary conditions are met
START-STOP ACTIVEWarning: Start-Stop system activated.
Vehicle in Stop mode.
SWITCH OFFWarning: Start-Stop system activated.
Switch off the ignition when you leave
the vehicle.
STOP TRANS-
MISSION TOO HOTWarning: Stop the engine. Gearbox
overheated.
BRAKEWarning: To start the engine, press the
brake pedal. Only in vehicles with au-
tomatic gearbox.
COASTINGFUNCTIONWarning: Coasting mode active. Trans-
mission engaged. Only in vehicles with
automatic gearbox.
» 1)
Depending on the version of the model.
39
Technical specifications
Advice
Operation
Safety

OperationMessages
a)Description
CHECK SAFE-
LOCKNotification of central locking function
activated.
a)These messages may vary according the version of the vehi-
cle model.
Fuel level/reserve The light comes on when only 7 litres of fuel
remain in the tank, and an acoustic signal
al-
so sou nd

s. It reminds you to fuel up the fuel
tank as soon as possible ›››
page 158.
The instrument panel displays the following
message 1)
: PLEASE REFUEL!
.
Coolant level* / temperature  (red) 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
1)
: CHECK COOLANT INSTRUCTION
MANU AL

››› page 169.
Firs
t 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 radia-
tor fan. Check the radiator fan fuse and have
it replaced if necessary ››› page 196.
If the control lamp lights up again after driv-
ing on for a short distance, stop the vehicle
and switch the engine off. Contact a Techni-
cal

Service or a specialised workshop.
Coolant level too low
The instrument panel displays the following
message 1)
: STOP CHECK COOLANT INSTRUC-
TION MANUAL.
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 traf-
fic. 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 en-
gine compartment. Risk of scalding. Wait un-
til 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 en-
gine compartment, switch off the engine and
allow it to cool down. Always note the corre-
sponding warnings ››› page 163. Coolant temperature
 (blue) 3 Applies to vehicles with LPG
This lamp lights up when the coolant is be-
low approximately +45 °C (+113 °F). When it
exceeds this temperature the lamp turns off.
Rear fog light  The warning lamp  lights up when the rear
fog light is switched on. For further informa-
tion see
›››
page 75 . 1)
Depending on the version of the model.
40

Operation
WARNING
● Apply the brakes heavily to clean the brake
system only in a suitable traffic situation. Do
not put other road users in danger: there is
risk of causing an accident.
● Ensure the vehicle does not move while in
neutral, when the engine is stopped. Failure
to follow this instruction could result in an
accident.
● If the brake fluid loses its viscosity and is
subjected to heavy use, vapour bubbles can
form in the brake system. This reduces the ef-
ficiency of the brakes.
● If a brake system circuit fails, the braking
distance will be increased considerably. Con-
tact a specialised workshop immediately and
avoid unnecessary journeys. CAUTION
● Never let the brakes “drag” by leaving your
foot on the pedal when it is not necessary to
brake. This overheats the brakes, resulting in
longer stopping distances and greater wear.
● Before driving down a long, steep gradient,
it is advisable to reduce speed and select a
lower gear. This makes use of engine braking
and relieves the brakes. If you still have to
use the brakes, it is better to brake firmly at
intervals than to apply the brakes continu-
ously. Note
● If the brake servo is out of action, for exam-
ple when the car is being towed, you will
have to press the brake pedal considerably
harder than normal to make up for the lack of
servo assistance.
● If you wish to equip the vehicle with acces-
sories such as a front spoiler or wheel covers,
it is important that the flow of air to the front
wheels is not obstructed, otherwise the
brakes can overheat. Before purchasing ac-
cessories please observe the relevant instruc-
tions ››› page 147, Technical modifications . Operating the handbrake
Fig. 123
Handbrake between the front seats. The handbrake should be applied firmly to
prevent the vehicle from accidentally rolling
away.Always apply the handbrake when you leave
your vehicle and when you park.
Applying the handbrake
– Pull the handbrake lever up firmly
››› Fig. 123 .
R el
easing the handbrake
– Pull the lever up slightly and press the re-
lease knob in the direction of the arrow
››› Fig. 123 and guide the handbrake lever
down f

ully ››› .
Always pull the handbrake all the way up, so
there is less risk of driving off with it still en-
gaged ››› .
The handbrake warning lamp  lights up
when the handbrake is applied and the igni-
tion switched on. The warning lamp turns off
when the handbrake is released.
If you drive faster than 6 km/h (4 mph) with
the handbrake on, the following message*
will appear on the instrument panel: HAND-
BRAKE ON. You will also hear an audible
warning. WARNING
● Never use the handbrake to stop the vehi-
cle when it is in motion. The braking distance
is considerably longer, because braking is
only applied to the rear wheels. Risk of acci-
dent! 124

Driving
●
If the handbrake is only partially released,
this will cause the rear brakes to overheat,
which can impair the function of the brake
system and could lead to an accident. This al-
so causes premature wear on the rear brake
pads. CAUTION
Always apply the handbrake before you leave
the vehicle. Put it in 1st gear as well. Parking
The handbrake should always be firmly ap-
plied when the vehicle is parked.
Always note the following points when park-
ing the vehicle:
– Use the brake pedal to stop the vehicle.
– Apply the handbrake.
– Put it in 1st gear.
– Switch the engine off and remove the key
from the ignition. Turn the steering wheel
slightly to engage the steering lock.
– Always take you keys with you when you
leave the vehicle ››› .Additional notes on parking the vehicle on
gradients:
Turn the steering wheel so that the vehicle
rolls against the kerb if it started to roll.
●
If the vehicle is parked facing downhill,
turn the front wheels so that they point to-
wards the kerb .
● If the vehicle is parked facing uphill, turn
the fr ont
wheels so that they point away from
the kerb
.
● Secure the vehicle as usual by applying the
handbrake firmly and putting it in 1st gear. WARNING
● Take measures to reduce the risk of injury
when you leave your vehicle unattended.
● Never park where the hot exhaust system
could ignite inflammable materials, such as
dry grass, low bushes, spilt fuel etc.
● Never allow vehicle occupants to remain in
the vehicle when it is locked. They would be
unable to open the vehicle from the inside,
and could become trapped in the vehicle in
an emergency. In the event of an emergency,
locked doors will delay assistance to vehicle
occupants.
● Never leave children alone in the vehicle.
They could set the vehicle in motion, for ex-
ample, by releasing the handbrake or the
gearbox lever. ●
Depending on weather conditions, it may
become extremely hot or cold inside the vehi-
cle. This can be fatal. Hill driving assistant*
This function is only included in vehicles with
ESC.
The hill driving assistant helps the driver to
move off and upward on a hill without rolling
backward.
The system maintains brake pressure for ap-
proximately 2 seconds after the driver takes
his foot off the brake pedal to prevent the ve-
hicle from rolling backward when starting off.
During these 2 seconds, the driver has
enough time to release the clutch pedal and
accelerate without the vehicle moving and
without having to use the handbrake, making
starting off easier, more comfortable and saf-
er.
These are the basic operation conditions:
● being on a ramp or hill/slope,
● closed doors,
● vehicle completely stationary,
● engine running and foot on the brake,
● besides having a gear engaged or being in
neutral for manual gear change and with the
selector lever at position S,
D
or R for an au-
tomatic gearbox. »
125
Technical specifications
Advice
Operation
Safety

Driving
The ignition key cannot be removed unless
the selector lever is in position P.
C ontr
ol lamp “Pressing brake pedal” 
When the warning lamp next to the selector
lever lights up, press the brake pedal. This is
necessary when the automatic gearbox selec-
tor lever is moved out of positions P or N
. A
text message or instructions to perform nec-
essary operations may appear on the instru-
ment panel. WARNING
● As a driver, you should never leave your ve-
hicle if the engine is running and a gear range
is engaged. If you have to leave your vehicle
while the engine is running, you must apply
the parking brake and put the selector lever
in position P.
● If the engine is running and if D or R is en-
gaged, you will need to hold the car on the
foot brake. The car will creep forward as the
power transmission is not fully interrupted
even when the engine is idling.
● Never accelerate when moving the selector
lever or you may cause an accident.
● Never move the selector lever to R or P
when driving. Risk of accident!
● Before driving down a long, steep slope, it
is advisable to reduce speed and change into
a lower gear. ●
If you stop the vehicle up hill, always hold
the foot brake strongly depressed down to
stop it from rolling back.
● Never allow the brake to rub and do not use
the brake pedal too often or for long periods.
Constant braking will cause the brakes to
overheat and will considerably reduce the
brake effect. This increases the braking dis-
tance and could cause the brake system to
fail.
● Never allow the car to roll down a gradient
with the gear in neutral N, or in selector lever
position D, even if the engine is not running. CAUTION
● If you stop the vehicle up hills, do not at-
tempt to stop it from rolling back by depress-
ing the accelerator when a gear has been se-
lected. Otherwise, the automatic gearbox
may overheat causing damage. Pull the hand-
brake up or fully depress the brake pedal to
prevent the vehicle from rolling away.
● If you allow the vehicle to roll when the en-
gine is not running, or with the selector lever
in position N, a lack of lubrication in the auto-
matic gearbox will damage it. Changing gear in Tiptronic mode*
Fig. 128
Changing gear with Tiptronic. Fig. 129
Steering wheel with paddle shifters
for automatic gearbox. The Tiptronic system allows the driver to se-
lect gears manually.
Changing gear with the selector lever
– Press the selector lever from position D to
the right int

o the tiptronic selector gate. »
129
Technical specifications
Advice
Operation
Safety

Operation
●
Do not apply additional underseal or anti-
corrosion coatings to the exhaust pipes, cata-
lytic converter or the heat shields on the ex-
haust system. These materials could catch
fire when the vehicle is being driven. CAUTION
Never run the fuel tank completely dry be-
cause the irregularity of the fuel supply may
cause ignition problems. This allows unburnt
fuel to enter the exhaust system, which could
cause overheating and damage the catalytic
converter. For the sake of the environment
Even when the emission control system is
working perfectly, there may be a smell of
sulphur from the exhaust gas under some
conditions. This depends on the sulphur con-
tent of the fuel used. Quite often the problem
can be solved by changing to another brand
of fuel. Diesel engine particulate filter*
Fig. 130
Vehicle data sticker on back cover of
the Maintenance Programme. Your vehicle is fitted with a DPF (Diesel partic-
ulate filter) if the vehicle data sticker (back
cover of the “Maintenance Programme)” lists
the PR code 7GG or 7MG
››› Fig. 130 .
The die sel
engine particulate filter eliminates
most of the soot from the exhaust gas sys-
tem. Under normal driving conditions, the fil-
ter cleans itself. If this is not possible (for ex-
ample, multiple short trips) the filter will be
obstructed by soot and  the diesel engine
particulate filter warning lamp will light up.
This does not represent a fault, it is a warning
that indicates that the filter has not been
able to regenerate automatically and that you
must perform a cleaning cycle, as indicated
in ››› page 41
. WARNING
● The diesel engine particulate filter may
reach extremely high temperatures; the vehi-
cle should be parked so that the exhaust pipe
does not come into contact with flammable
materials underneath the vehicle. Otherwise
there is a risk of fire. CAUTION
● Your vehicle is not designed to use biodie-
sel fuel. Never, under any circumstances re-
fuel with biodiesel. The use of biodiesel fuel
could damage the engine and the fuel sys-
tem. The addition of biodiesel to diesel by
the diesel producer in accordance with stand-
ard EN 590 is authorised and will not cause
damage to the engine or the fuel system.
● Using diesel fuel with a high sulphur con-
tent may significantly reduce the useful life of
the diesel particulate filter. Your Technical
Service will be able to tell you which coun-
tries have diesel with a high sulphur content. Economical and environmentally
friendly driving
Fuel consumption, environmental pollution
and wear to the engine, brakes and tyres de-
pends in large part on your driving style. By
adopting an economical driving style and an-
ticipating the traffic situation ahead, you can
easily reduce fuel consumption by 10-15%.
132

Driver assistance systems
The ESC system is always active and cannot
be switched off. The ESC switch only switches
the ASR off.
The ASR can be deactivated when wheel spin
is desirable.
For example:
● When driving with snow chains.
● When driving in deep snow or on loose sur-
faces.
● When the vehicle is stuck, to rock it back-
wards and forwards.
Press the button to switch the ASR back on
when you no longer need wheel spin.
Electronic Stability Control (ESC)*
The ESC reduces the risk of skidding by brak-
ing the wheels individually.
The system uses the steering wheel angle
and road speed to calculate the changes of
direction desired by the driver, and constant-
ly compares them with the actual behaviour
of the vehicle. When irregularities occur, for
example, if the vehicle begins to skid, the
ESC brakes the appropriate wheel automati-
cally.
The forces acting on the braked wheel bring
the vehicle back to a stable condition. If the
vehicle tends to oversteer (the rear end
slides out), the system will act on the front
wheel on the outside of the turn. Steering manoeuvre recommendations
This is a complementary safety function in-
cluded in the ESC. This function aids the driv-
er to better stabilize the vehicle in a critical
situation. For example, in case of sudden
braking on a surface with varied adherence,
the vehicle will tend to destabilise its trajec-
tory to the right or to the left. In this case, the
ESC recognises the situation and assists the
driver with a counter steering manoeuvre
from the power steering.
This function simply provides the driver with
a recommended manoeuvre in critical situa-
tions.
The vehicle does not steer itself with this
function, the driver has full control of the ve-
hicle at all times.
WARNING
● Remember that not even the ESC can 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 situa-
tion. The greater safety provided by the ESC
should not encourage you to run any risks. CAUTION
● To ensure that the ESC works correctly, all
four wheels must be fitted with the same
tyres. Any differences in the rolling radius of the tyres can cause the system to reduce en-
gine power when this is not desired.
● Any modifications made to the vehicle (for
example, to the engine, brake system, run-
ning gear or to the combination of wheels
and tyres) may affect the operation of the
ABS, EDL, ESC and ASR. Electronic differential lock (EDL)*
EDL helps the vehicle to start moving, accel-
erate and climb a gradient in slippery condi-
tions where this may otherwise be difficult or
even impossible.
It uses the ABS sensors to monitor the speed
of the driven wheels. In case of an EDL fault,
the warning light for ABS lights up
››› page 41 .
At s
peeds of up to approximately 80 km/h
(50 mph), it is able to balance out differences
in the speed of the driven wheels of approxi-
mately 100 rpm/min caused by a partially
slippery road surface. It does this by braking
the wheel which has lost traction and distrib-
uting more driving force to the other driven
wheel via the differential.
To prevent the disc brake of the braking
wheel from overheating, the EDL cuts out au-
tomatically if subjected to excessive loads.
The vehicle will continue to function normally »
135
Technical specifications
Advice
Operation
Safety