2012 Seat Exeo ST cooling

Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Removable towing bracket . . . . . . . . . . . . . . . . . . 209
Vehicle maintenance and cleaning . . . . . . . . . 216
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Care of the vehicle exterior . . . . . . . . . . . . . . . . . . 217
Vehicle interior maintenance . . . . . . . . . . . . . . . . 222
Accessories, replacement of parts and
modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Accessories and spare parts . . . . . . . . . . . . . . . . 228
Technical modifications . . . . . . . . . . . . . . . . . . . . 228
Mobile phones and two-way radios . . . . . . . . . . . 229
Athermic windscreen* . . . . . . . . . . . . . . . . . . . . . 229
Checking and refilling levels . . . . . . . . . . . . . . . 230
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Washer fluid and windscreen wiper blades . . . . 241
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Vehicle battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
If and when . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Tools, tyre repair kit and spare wheel . . . . . . . . . 259
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . 262
Tyre repair* (Tyre-Mobility-System) . . . . . . . . . . . 266
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Changing bulbs. Halogen headlights . . . . . . . . . 273
Changing bulbs. Bi-Xenon AFS headlights . . . . . 279
Changing tail light bulbs (on side panel) . . . . . . 283
Changing tail light bulbs (on rear lid) . . . . . . . . . 288
Side turn signals . . . . . . . . . . . . . . . . . . . . . . . . . . 291 Luggage compartment lights . . . . . . . . . . . . . . . . 292
Registration light . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Sun visor light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Towing and tow-starting . . . . . . . . . . . . . . . . . . . . 297
Technical Specifications . . . . . . . . . . . 300
Description of specifications . . . . . . . . . . . . . . . 300
Important information . . . . . . . . . . . . . . . . . . . . . 300
Information on fuel consumption . . . . . . . . . . . . 302
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Technical specifications . . . . . . . . . . . . . . . . . . . . 304
Engine specifications . . . . . . . . . . . . . . . . . . . . . . 304
Dimensions and capacities . . . . . . . . . . . . . . . . . 312
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
4Table of Contents

62Cockpit
CHECK button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Call-up button for service indicator . . . . . . . . . . . . . . . . . . . . . . . . .77
Reset button for trip recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Coolant temperature gauge
Fig. 38 Engine coolant
temperature gauge
The coolant temperature gauge ⇒ Fig. 38 only works when the ignition is
switched on. In order to avoid engine damage, please read the following
notes for the different temperature ranges.
Cold temperature A
If the needle is still on the left of the dial, this indicates that the engine has
not yet reached operating temperature. Avoid high revs and heavy accelera-
tion and do not make the engine work hard.
Normal temperature B
In normal operations, the needle will settle somewhere in the centre of the
dial once the engine has reached running temperature. The temperature
may also rise when the engine is working hard, especially at high outside8
910
temperatures. This is no cause for concern, provided the warning lamp

does not light up in the instrument panel.
Warning temperature C
If the symbol
 flashes in the display, this means that either the coolant
temperature is too high or the coolant level is too low ⇒ page 81.
WARNING
● Before opening the bonnet and checking the coolant level, observe
the warning information ⇒ page 234.
● Never open the bonnet when steam or coolant is being released from
it. This could lead to burns. Wait until you can no longer see or hear es-
caping steam or coolant.
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. 

81
Cockpit
WARNING
● Before opening the bonnet and checking the brake fluid level, ob-
serve the warning information in ⇒ page 234, Work in the engine com-
partment.
● If the brake fluid level in the reservoir is too low, this could result in
an accident. Do not drive on! Obtain technical assistance.
● If the brake warning lamp lights up together with the ABS warning
lamp, this can mean that there is a fault in the ABS control function. As a
result, the rear wheels can lock relatively easily when braking. Under cer-
tain circumstances, the rear of the vehicle could suddenly sway from side
to side, with the subsequent danger of skidding. Drive carefully to the
nearest specialised workshop and have the fault repaired.

Fault in the cooling system 
Faults in the cooling system must be repaired immediately.
If the  symbol flashes in the display, this means that either the
coolant temperature is too high or the coolant level is too low. The
following message will appear in the display together with the
symbol:
Switch off engine and check coolant level
– Stop the vehicle.
– Switch the engine off.
– Check the coolant level ⇒ page 239.
– Add more coolant if necessary ⇒ page 240.
– Wait for the symbol to go out before driving on. –
Obtain professional assistance if necessary.
If the coolant level is correct, the overheating may be caused by a malfunc-
tion of the radiator fan.
If the alternator warning lamp lights up as well ⇒ page 72, it is possible that
the drive belt has broken.
CAUTION
Do not drive on if the symbol  has come on to indicate a fault in the cool-
ing system, otherwise there is a risk of engine damage. 
Engine oil pressure too low 
If the engine oil pressure is too low the fault must be re-
paired immediately.
If the  symbol flashes in the display, the oil pressure is too low.
The following message will appear in the display together with the
symbol:
Switch off engine, check oil level
– Stop the vehicle.
– Switch the engine off.
– Check the engine oil level ⇒ page 237.
– Obtain professional assistance if necessary.
Engine oil level too low
If the engine oil level is too low, add more oil ⇒ page 238.

Safety FirstOperating InstructionsPractical TipsTechnical Specifications

162Air conditioning
Air conditioning
2C-Climatronic
Description
The air conditioner is designed to automatically keep the
passenger compartment at the temperature you find most
comfortable at all times of the year. Recommended settings:
– Set the temperature to 22°C (71°F).
– Press the AUTO
⇒ Fig. 139 button.
The following setting quickly provides a comfortable temperature inside the
vehicle. We therefore recommend you do not modify the setting unless you
find this temperature uncomfortable or where circumstances require as
such.
The air conditioner provides heating and ventilation and also cools and de-
humidifies the air inside the vehicle.
The air conditioner is fully automatic and will constantly maintain the tem-
perature which has been set. To achieve this, the temperature of the air sup-
plied to the interior, the blower speed (volume of air delivery) and the air
distribution are regulated automatically. The system also takes solar radia-
tion into account and, therefore, no subsequent manual readjustments are
required. Therefore, automatic mode ⇒ page 165 should be used for the
comfort of all the passengers in virtually all conditions throughout the year.
Please note the following points: The humidity of the air is automatically reduced when the system cools the
interior of the vehicle. This helps to prevent condensation on the windows.
If the humidity and temperature outside the vehicle are high,
condensation
can drip off the evaporator in the air cooling system and form a pool under-
neath the vehicle. This is normal and does not indicate a leak.
If the outside temperature is low, the blower normally only switches to a
higher speed once the coolant has warmed up sufficiently (this does not ap-
ply to the defrost setting).
In order to achieve maximum engine power, the air conditioner compressor
is temporarily switched off when pulling away from standstill with full throt-
tle.
The compressor also switches off if the coolant temperature is excessively
high to ensure adequate engine cooling under extreme loads.
Pollution filter
The pollution filter (a combined particulate filter and activated charcoal fil-
ter) serves as a barrier against impurities in the outside air, including dust
and pollen.
For the air conditioner to work with maximum efficiency, the pollution filter
element must be replaced at the intervals specified in the Service Plan.
If the vehicle is driven in areas with a high level of air pollution and the filter
is no longer fully effective, it may be necessary to change the filter element
more frequently. 

163
Air conditioning
CAUTION
● If you suspect that the air conditioner system is damaged, switch over to
ECON mode to prevent further damage and have the system checked by a
specialised workshop.
● Repairs to the air conditioner require specialist knowledge and special
tools. For this reason, please contact a specialised workshop if the system
is not working properly.
Note
● Keep the air intake slots in front of the windscreen clear of snow, ice and
leaves to ensure unimpaired heating and cooling and to prevent the win-
dows misting over.
● The air from the outlets flows through the passenger compartment and
out through the slots below the rear window. 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 vehicle has heated up after
standing in the sun for some time, the air inside can be cooled more quickly
by opening the windows briefly. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

164Air conditioning
Controls
This overview will help you become quickly familiar with the controls for the air conditioner.
Fig. 139 Air conditioner controls
The left-hand display shows the temperature selected for the left-hand side
and the right-hand display the temperature for the right-hand side.
The functions can be switched on or off by briefly pressing the buttons. The
diode on the buttons lights up when the function is enabled.
The grille between buttons 
and  must be kept clear, as the tempera-
ture sensors are located behind the grille.
● Do not cover the grille.
● Do not clean the grille with a vacuum cleaner, as this could damage the
temperature sensors located behind the grille.
Button(s)Meaning
Automatic mode
 (left and right)Temperature selection for driver and passenger
sides
Defrost
Manual air recirculation mode
Switches off air cooling
Switches off air conditioner (instead of )
Automatic air recirculation mode (instead of OFF)


165
Air conditioning
Button(s)Meaning
 (in the centre)Adjusts blower speed
Air to the windows
Air from the dashboard outlets
Air to the footwells
The ,  and  buttons (which regulate air distribution) can either be
selected individually or in combination. 
Automatic mode AUTO
Standard setting for all seasons.
Switching on automatic mode
– It is possible to select interior temperatures from +18°C (64°F)
to +29°C (86°F).
– Press the AUTO
⇒ 
Fig. 139 button.
The automatic mode maintains a constant temperature inside the vehicle
and dehumidifies the air. Air temperature, air delivery and air distribution
are regulated automatically to reach the desired interior temperature as
quickly as possible, and then to maintain this temperature. The system au-
tomatically compensates for any variations in the outside temperature and
for the effect of direct sunlight.
The automatic temperature regulation only operates at temperature settings
between +18°C and +29°C. If a temperature below +18°C is selected, LO ap-
pears on the display. If a temperature is selected which is higher than +29°C, the display will show
HI. In the maximum and minimum settings, the
climate control operates continuously with maximum cooling or heating
output and the temperature is not regulated automatically. The temperature
is not regulated.
Note
By keeping the AUTO button on the driver side pressed for several seconds,
the temperature of the passenger side can be set to the temperature of the
driver side or vice versa. The display indicates the new temperature value. 
Selecting the temperature -
+
Separate temperatures can be selected for the driver and
front passenger sides.
– Press the -
or + buttons below the displays
⇒ Fig. 139 until
the desired temperature is selected for the driver side or front
passenger side.
The currently selected temperature setting is shown in the display above
the buttons.
By keeping the AUTO
button on the driver side pressed for several seconds,
the temperature of the passenger side can be set to the temperature of the
driver side or vice versa. The display indicates the new temperature value.
The previous temperature setting can be restored by resetting the display
on the driver or passenger side as required. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

166Air conditioning
Defrosting 
The windscreen and side windows are defrosted or demisted
as quickly as possible.
– To enable this mode, press the 
⇒ 
Fig. 139 button.
– To switch off, press the 
button again, or select the AUTO but-
ton.
The temperature is regulated automatically. The air output is increased to
maximum and most of the air comes out of outlets 1 and 2 ⇒ page 169.
The air recirculation and ECON modes are switched off when the 
button
is pressed. 
Air recirculation: manual activation 
The air recirculation setting prevents fumes etc. from enter-
ing the interior.
Activating air recirculation mode
– Press button 
⇒ Fig. 139 ⇒ .
Deactivating air recirculation mode
– Press the 
button again or
– Press the AUTO
button or
– Press button 
.
In this setting, the air in the vehicle is constantly recirculated. We recom-
mend using the air recirculation mode in the following circumstances: ●
When driving through a tunnel or in traffic congestions, to prevent ex-
haust gas entering the interior of the vehicle.
WARNING
Do not drive for too long with the air recirculation mode enabled because,
if the compressor is disconnected, the windscreen may mist up because
no fresh air is entering the interior of the vehicle, with the subsequent
risk of accidents.

ECON Mode (economy) ECON
ECON mode helps save fuel.
– To activate, press the ECON
button ⇒ Fig. 139.
– To deactivate, press the ECON
button again or select the AUTObutton.
Air cooling is disconnected in ECON mode. The heating and the blower are
adjusted automatically. “ECON” stands for “Economy”. Disconnecting air
cooling (compressor) reduces fuel consumption.
Please note that the interior temperature must not be lower than the outside
temperature in ECON mode. The blower does not cool or dehumidify the air
in the interior. The windows could therefore mist up.
In diesel vehicles, the auxiliary heater is switched off in ECON mode to save
fuel. 