2015 Seat Altea XL engine

Operation
and 120 km/h (75 mph) 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.
Save electricity
The engine activates the alternator, which
produces electricity. With the need for elec-
tricity, fuel consumption is also increased.
Because of this, always turn off electrical de-
vices when you do not need them. Examples
of devices that use a lot of electricity are: the
fan at high speeds, the rear window heating
or the seat heaters*. Note
● If you vehicle has Start-Stop, it is not rec-
ommended t o sw
itch this function off.
● It is recommended to close the windows
when driving at more than 60 km/h
● Do not drive with your foot resting on the
clutch pedal,, as the pressure can make the
pl

ate spin, more fuel will be used and it can
burn the clutch plate lining, causing a serious
fault.
● Do not hold the vehicle on a hill with the
clutch, use the foot brake or hand brake, us-
ing the latter to start. The fuel consumption
will be lower and you will prevent the clutch
plate from being damaged.
● On descents, use the engine brake, chang-
ing to the gear that is more suitable for the slope. Fuel consumption will be “zero” and
the brakes will not suffer.
Driver assistance systems
Braking and stability systems Electronic Stability Control (ESC)* Fig. 131
Detailed view of the centre console:
ESC switch. This Electronic Stability System reduces the
risk of skidding and improves the vehicle's
stability and ability to hold the road.
Electronic Stability Control (ESC) includes the
electronic differential lock (EDL), the traction
control system (TCS), the brake assist system
(BAS) and the trailer stabilisation programme
(TSP). The ESC works together with the ABS.
Both control lamps will light up if the ESC or
ABS systems are faulty.
The ESC system is started automatically
when the engine is started.
134

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

Driver assistance systems
brake on gravel or on fresh snow on a
slippery surface. WARNING
● The anti-lock brake system cannot defy the
laws of physics. Slippery and wet roads are
dangerous even with ABS! If you notice that
the ABS is working (to counteract locked
wheels under braking), you should reduce
speed immediately to suit the road and traffic
conditions. Do not let the extra safety fea-
tures tempt you into taking any risks when
driving.
● The effectiveness of ABS is also determined
by the tyres fitted ››› page 175.
● If the ru
nning gear or brake system is modi-
fied, the effectiveness of the ABS could be se-
verely limited. Drive wheel traction control system
(ASR)
The traction control system prevents the driv-
en wheels from spinning when the vehicle is
accelerating.
Description and operation of the traction
control system during acceleration (ASR
On front-wheel drive vehicles, the ASR sys-
tem intervenes, reducing engine power and
preventing the driven wheels from slipping
during acceleration. The system works in the entire speed range in conjunction with ABS.
If a failure occurs in the ABS, the ASR will al-
so stop working.
TCS helps the car to start moving, accelerate
and climb a gradient in slippery conditions
where this may otherwise be difficult or even
impossible.
The ASR automatically switches on when the
engine is started. If necessary, it may be
turned on or off by briefly pushing the button
on the centre console.
When the ASR is switched off, the
 OFF warning lamp will light up. The ASR should
normally be left on. Only in exceptional cir-
cumstances, when slipping of the wheels is
desired, should it be disconnected.
●
With compact temporary spare wheel.
● When using the snow chains.
● When driving in deep snow or on soft ter-
rain.
● When the vehicle is bogged-down, to free it
by “rocking.”
The ASR should be switched on again as
soon as possible. WARNING
● Remember that not even the ASR 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 ASR
should not encourage you to run any risks. CAUTION
● To ensure that the ASR works correctly,
identical tyres should be fitted on all four
wheels. Any differences in the rolling radius
of the tyres can cause the system to reduce
engine 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 and ASR. XDS*
When taking a curve, the driveshaft differen-
tial mechanism allows the outer wheel to turn
at a higher speed than the inner wheel. In
this way, the wheel that is turning faster (out-
er wheel) receives less drive torque than the
inner wheel. This may mean that in certain
situations the torque delivered to the inner
wheel is too high, causing the wheels to
spin. On the other hand, the outer wheel is
receiving a lower drive torque than it could
transmit. This causes an overall loss of lateral
grip on the front axle, resulting in understeer
or “lengthening” of the trajectory.
»
137
Technical specifications
Advice
Operation
Safety

Operation
The XDS system can detect and correct this
effect via the sensors and signals of the ESC.
Via the ESC, the XDS will brake the inside
wheel and counter the excess driving torque
of that wheel. This means that the driver's
desired trajectory is much more precise,
The XDS system works in combination with
the ESC and is always active, even when ASR
traction control is disconnected.
Brake servo The brake servo increases the pressure you
apply to the brake pedal. It works
only when
the engine is running .
If the brake servo is not functioning, e.g. due
to a malfunction, or if the vehicle is being
towed, you will have to press the brake pedal
considerably harder to make up for the lack
of servo assistance. WARNING
The braking distance can also be affected by
external factors.
● Never let the vehicle coast with the engine
switched off. Failure to follow this instruction
could result in an accident. The braking dis-
tance is increased considerably when the
brake servo is not active.
● If the brake servo is not working, for exam-
ple when the vehicle is being towed, you will have to press the brake pedal considerably
harder than normal.
Start-Stop System*
Description and operation The Start-Stop function stops the engine
when the vehicle is stopped and starts it au-
tomatically when required.
– When the vehicle is stopped, put it in neu-
tral and release the clutch pedal. The en-
gine will stop.
– When the clutch pedal is pressed, the en-
gine starts again.
– The instrument panel display shows infor-
mation about the status of the Start-Stop
function ››› Fig. 133 .
St ar
t-Stop function conditions
● The driver seat belt must be buckled.
● The bonnet must be closed.
● The engine must be at operating tempera-
ture.
● The steering wheel must be straight.
● The vehicle must not be on a steep gradi-
ent.
● The vehicle must not be in reverse.
● A trailer must not be connected. ●
The temperature of the passenger compart-
ment must be within comfort limits (button A/C
11
››› Fig. 120 should be selected).
● The w ind

screen de-mist function must be
off.
● If not
, it requires an increase in airflow 10 ›››
Fig. 120 for more than three presses.
● The t emper
ature must not be set to HI or
LO.
● The driver 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.
● Battery temperature must be between -1 °C
(+30 °F) and +55 °C (+131 °F).
● The Parking aid system (Park Assist*) must
not be activated.
Start-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 excessive-
ly.
● The Start-Stop System is manually deacti-
vated.
138

Driver assistance systems
● The windscreen de-mist function is turned
on.
● The temperature of the passenger compart-
ment exceeds comfort limits (button A/C
11 ›››
Fig. 120 should be selected).
● If in an inc
rease in airflow 10
››› Fig. 120 is
r equir

ed for more than three presses.
● Temperature setting HI or LO is selected.
● The engine coolant temperature is insuffi-
cient.
● 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 en-
gine off for any reason. You could lose control
of your vehicle. This could cause an accident
and serious injury.
● Power steering does not work when the en-
gine is not running. That is why it is much
more difficult to turn the steering wheel.
● Turn off the Start-Stop system when driving
through water (fording streams, etc.). 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 instrument pan-
el displays the Start-Stop indicator dimmed.
● If the steering wheel is turned more than
270°, Stop will not function; however, the an-
gle of steering wheel turn does not affect
starting the vehicle. Activating and deactivating the Start-
Stop function
Fig. 132
The Start-Stop function button. Every time the ignition is switched on, the
Start-Stop function is automatically activa-
ted.
Manually deactivating the Start-Stop
function
– Press the A
››› Fig. 132 located in the cen-
tre console. When the Start-Stop function is deactivated, the pushbutton indicator
lights.
– If the Start-Stop function is operating then
the engine starts immediately.
Switching the Start-Stop function on
manually – Press the A
››› Fig. 132 located in the cen-
tre console. The indicator on the button will
go out.
Driver messages Fig. 133
Display on the instrument panel dur-
ing Start-Stop function operation. When the engine is turned off by the Start-
Stop function, this is displayed on the instru-
ment panel.
»
139Technical specifications
Advice
Operation
Safety

Operation
once on the upper part of the rocker switch RES/+ ››› Fig. 137 A .
Complete system deactivation* Vehicles with a manual gearbox
The system is completely turned off
by mov-
ing the control B
››› Fig. 137 all the way to
the right (OFF
engaged), or when the vehicle
is stationary, by switching off the ignition.
Vehicles with automatic gearbox/DSG
automatic gearbox
To completely disengage the system, the se-
lector lever must be placed in one of the fol-
lowing positions: P ,
N, R or 1 or with the vehi-
cle stopped and the ignition turned off. Towing bracket device
Trailer towing Instructions to follow Your vehicle may be used to tow a trailer
when fitted with the correct equipment.
If the car is supplied with a
factory-fitted tow-
in g br

acket it will already have the necessary
technical modifications and meet the statuto-
ry requirements for towing a trailer. If you
wish to retrofit a towing bracket, consult
›

›› page 146.
Connect
ors
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 a

dapter cable. It is available at any
Technical Service.
Trailer weight/drawbar load
Never exceed the authorised trailer weight. If
you do not load the trailer up to the maxi-
mum permitted trailer weight, you can then
climb correspondingly steeper slopes.
The maximum trailer weights listed are only applicable for altitudes up to 1000 m above
sea l

evel. With increasing altitude the engine power and therefore the vehicle 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 re-
duced 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 maxi-
mum permitted drawbar load on the ball joint
of the t

owing 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 fig-
ures for the towing bracket, are given in the
vehicle documentation 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 moving.
144

Towing bracket device
Tyre pressure
Set tyre pressure to the maximum permissi-
ble pressure shown on the sticker on the in-
side of the fuel tank flap. Set the tyre pres-
sure 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 rear
vision mirrors. If this is not the case, you
should have additional exterior mirrors fitted.
Both exterior mirrors should be mounted on
hinged extension brackets. 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 recommend additional
services between the normal inspection inter-
vals if the vehicle is used frequently for tow-
ing a trailer.
● Find out whether special regulations apply
to towing a trailer in your country. Ball coupling of towing bracket*
Depending on the model version, the spheri-
cal head on the trailer hook may be stored in
the tool box.
The ball coupling is provided with instruc-
tions on fitting and removing the ball cou-
pling 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 vehi-
cle and causing injury. Note
● By law, the ball coupling must be removed
if a trailer is not being towed if it obscures
the number plate. Driving tips
Driving 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 ex-
tra slowly to allow for the unbalanced weight
distribution.Speed
The stability of the vehicle and trailer is re-
duced 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 es-
pecially when driving downhill.
You should always reduce speed immediately
if the trailer shows the slightest sign of
snak-
ing . Never try to stop the “snaking” by in-
c r
easing 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 locking of trail-
er wheels. Select a low gear in due course
before going down a steep downhill. This en-
ables you to use the engine braking to slow
down the vehicle.
Reheating
At very high temperatures and during pro-
longed slopes, driving in a low gear and high
engine speed, always monitor the coolant
temperature gauge ››› page 31.
Electronic Stability Control*
The ESC* system helps to stabilise the trailer
in case of skidding or rocking.
145
Technical specifications
Advice
Operation
Safety

Advice
To return to working position
Continue in the reverse order to the previous
instruction. CAUTION
If an automatic car wash tunnel is used, be-
fore entering the tunnel, put the aerial down
parallel to the roof and do not tighten to
avoid damage. Mobile phones and two-way radios
First consult your Technical Service if you
wish to use a mobile telephone or a two-way
radio with a transmitting power output in ex-
cess of 10 watts. Here you will receive infor-
mation concerning the technical possibilities
for retrofitting this equipment.
Mobile telephones and two-way radios
should be only fitted by a specialised work-
shop, for example a SEAT dealership.
WARNING
● Always concentrate primarily on driving. If
you are distracted while driving you could
have an accident.
● Never attach the telephone mountings to
the surfaces covering the airbag units or
within the range of the airbags. There is a
high danger of injury if the airbag is trig-
gered. Note
Please observe the operating instructions of
your mobile telephone/two-way radio. Care and cleaning
General information Vehicle maintenance
Regular care and washing help to maintain
the value
of the vehicle. This may also be one
of the requirements for acknowledging war-
ranty claims in the event of bodywork corro-
sion or paint defects.
The best way to protect your vehicle against
the harmful effects of the environment is
through correct maintenance and frequent
washing. The longer substances such as in-
sect remains, bird droppings, resinous tree
sap, road dirt, industrial deposits, tar, soot or
road salt and other aggressive materials re-
main on the vehicle, the more damage they
do to the paintwork. High temperatures, for
instance in strong sunlight, further intensify
the corrosive effect.
After winter, a period when salt is put on the
roads, it is important to have the underside
of the vehicle washed thoroughly. Products for vehicle maintenance
Car-care products are available in your Tech-
nical Services. Keep the product instructions
until you have used them up. WARNING
● Car-care products can be toxic. Because of
this, they must always be kept closed in their
original container. Keep them out of the reach
of children. Failure to comply could result in
poisoning.
● Always read and observe the instructions
and warnings on the package before using
car-care products. Improper use could cause
health problems or damage the vehicle. The
use of certain products may produce noxious
vapours; they should be used in well ventila-
ted areas.
● Never use fuel, turpentine, engine oil, nail
varnish remover or other volatile fluids.
These are toxic and highly flammable. Risk of
fire and explosion.
● Before washing your vehicle, or carrying
out any maintenance, switch the engine off,
apply the handbrake firmly and remove the
key from the ignition. CAUTION
Never attempt to remove dirt, mud or dust if
the surface of the vehicle is dry. Never use a
dry cloth or sponge for cleaning purposes.
This could damage the paintwork or the win-
dows of your vehicle. Soak dirt, mud or dust
with plenty of water. 148