ECU Seat Exeo ST 2012 Owner's manual

Table of Contents
Manual structure . . . . . . . . . . . . . . . . . . . . 5
Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety First . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safe driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . . 7
Proper sitting position for occupants . . . . . . . . . 10
Pedal area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Storing objects . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . . 19
Why wear seat belts? . . . . . . . . . . . . . . . . . . . . . . 20
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Seat belt tensioners . . . . . . . . . . . . . . . . . . . . . . . 28
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . . 29
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Knee airbag* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Side airbags* . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Deactivating airbags . . . . . . . . . . . . . . . . . . . . . . . 45
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . . 47
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Securing child seats . . . . . . . . . . . . . . . . . . . . . . . 52 Operating Instructions
. . . . . . . . . . . . . 59
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Warning and indicator lamps . . . . . . . . . . . . . . . . 67
Driver information system . . . . . . . . . . . . . . . . . . 74
Auto-check system . . . . . . . . . . . . . . . . . . . . . . . . 78
Speed warning*  . . . . . . . . . . . . . . . . . . . . . . . . 85
Onboard computer . . . . . . . . . . . . . . . . . . . . . . . . 88
Menu display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Tyre pressure monitoring* . . . . . . . . . . . . . . . . . . 92
Steering wheel controls . . . . . . . . . . . . . . . . . . . . 94
Multifunction steering wheel* . . . . . . . . . . . . . . . 94
Unlocking and locking . . . . . . . . . . . . . . . . . . . . . 99
Remote control keys . . . . . . . . . . . . . . . . . . . . . . . 99
Central locking . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Childproof lock . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Remote control key . . . . . . . . . . . . . . . . . . . . . . . . 108
Anti-theft alarm system* . . . . . . . . . . . . . . . . . . . 110
Electric windows . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Sliding/tilting sunroof* . . . . . . . . . . . . . . . . . . . . 114
Lights and visibility . . . . . . . . . . . . . . . . . . . . . . . . 117
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Interior lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Visibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Windscreen wipers . . . . . . . . . . . . . . . . . . . . . . . . 129
Rear view mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Seats and storage compartments . . . . . . . . . . 135
Manual adjustment of the front seats . . . . . . . . . 135
Electric adjustment of front seats* . . . . . . . . . . . 137
Lumbar support* . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Driver seat memory* . . . . . . . . . . . . . . . . . . . . . . . 139 Head restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Armrests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Luggage compartment . . . . . . . . . . . . . . . . . . . . . 144
Roof rack / roof rails* . . . . . . . . . . . . . . . . . . . . . . 152
Drink holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Ashtray*, cigarette lighter* and electric sockets* . .154
Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Starting and stopping the engine . . . . . . . . . . . . 174
Start-Stop function* . . . . . . . . . . . . . . . . . . . . . . . 176
Handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Parking aid acoustic system . . . . . . . . . . . . . . . . . 181
Cruise speed* (Cruise control system) . . . . . . . . 183
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Automatic gearbox* . . . . . . . . . . . . . . . . . . . . . . . 187
Practical Tips . . . . . . . . . . . . . . . . . . . . . . . . . 195
Intelligent technology . . . . . . . . . . . . . . . . . . . . . 195
Electronic Stability Control (ESC) . . . . . . . . . . . . . 195
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Power steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Servotronic* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Driving and the environment . . . . . . . . . . . . . . . 201
Running-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Exhaust gas purification system . . . . . . . . . . . . . 202
Economical and environmentally friendly driving 203
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
3
Table of Contents

8Safe driving
Therefore, this chapter explains why these safety features are so important,
how they can protect you, what you need to remember when using them
and how you and your passengers can gain the most benefit from them.
There are also a number of important safety warnings that you and your
passengers should always observe in order to minimise the risk of injury.
Safety is everyone's responsibility! 
Before setting off
The driver is responsible for the safety of the passengers
and the safe operation of the vehicle at all times. For your own safety and the safety of your passengers, always note
the following points before setting off:
– Make sure that all lights and indicators are working properly.
– Check tyre pressure.
– Make sure that all windows are clean and give good visibility to
the outside.
– Secure all luggage and other items carefully ⇒ page 16.
– Make sure that no objects can interfere with the pedals.
– Adjust the front seat, head restraint and mirrors correctly.
– Make sure that the head restraints for all passengers are adjus-
ted to the correct position.
– Make sure that children are protected with suitable safety seats
and properly worn seat belts ⇒ page 47. –
Sit in a correct position. Inform your passengers as to how they
should sit ⇒ page 10.
– Fasten your seat belt correctly. Make sure that your passengers
do the same ⇒ page 19. 
What affects safe driving?
Safety on the road is directly related to how you drive, and
can also be affected by the passengers in the vehicle. The driver is responsible for the safety of the vehicle and all its oc-
cupants. If your ability to drive is impaired in any way, you endan-
ger yourself and other road users ⇒ 
. Therefore:
– Do not let yourself be distracted by passengers or by using a
mobile phone, etc.
– Never drive when your driving ability is impaired (by medica-
tion, alcohol, drugs, etc.).
– Obey all traffic regulations and speed limits and always main-
tain a safe distance to the vehicle in front.
– Always adjust your speed to suit the road, traffic and weather
conditions.
– Take frequent breaks on long trips. Do not drive for more than
two hours without a stop.
– If possible, avoid driving when you are tired or stressed. 

11
Safe driving
– Fasten your seat belt securely ⇒ page 19.
– Keep both feet in the footwell so that you have the vehicle un-
der control at all times.
Adjustment of the driver seat ⇒ page 135.
WARNING
● An incorrect sitting position of the driver can lead to severe injuries.
● Adjust the driver seat so that there is at least 25 cm distance between
the centre of the chest and the centre of the steering wheel ⇒ Fig. 1. If
you are sitting closer than 25 cm, the airbag system cannot protect you
properly.
● If your physical constitution prevents you from maintaining the mini-
mum distance of 25 cm, contact a specialised workshop. The workshop
will help you decide if special specific modifications are necessary.
● 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. This reduces
the risk of injury when the driver airbag is triggered.
● 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). In such cases, if
the airbag is triggered, you may sustain injuries to the arms, hands and
head.
● To reduce the risk of injury to the driver during sudden braking ma-
noeuvres or an accident, never drive with the backrest tilted far back! The
airbag system and seat belts can only provide optimal protection when
the backrest is in an upright position and the driver is wearing his or her
seat belt properly. The further the backrests are tilted to the rear, the
greater the risk of injury due to incorrect positioning of the belt web or to
the incorrect sitting position!
● Adjust the head restraint properly to achieve optimal protection.
 Proper sitting position for front passenger
The front passenger must sit at least 25 cm away from the
dash panel so that the airbag can provide the greatest pos-
sible protection in the event that it is triggered.
For your own safety and to reduce the risk of injury in the event of
an accident, we recommend the following adjustments for the front
passenger:
– Move the front passenger seat back as far as possible ⇒ 
.
– Move the backrest to an upright position so that your backrests
completely against it.
– Adjust the head restraint so that its upper edge is at the same
level as the top of your head, or as close as possible to the
same level as the top of your head ⇒ page 13.
– Keep both feet in the footwell in front of the front passenger
seat.
– Fasten your seat belt securely ⇒ page 19.
It is possible to deactivate the passenger airbag in exceptional circumstan-
ces ⇒ page 25.
Adjusting the front passenger seat ⇒ page 135. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

12Safe driving
WARNING
● An incorrect sitting position of the front passenger can lead to severe
injuries.
● Adjust the front passenger seat so that there is at least 25 cm be-
tween your chest and the dash panel. If you are sitting closer than 25 cm,
the airbag system cannot protect you properly.
● If your physical constitution prevents you from maintaining the mini-
mum distance of 25 cm, contact a specialised workshop. The workshop
will help you decide if special specific modifications are necessary.
● Always keep your feet in the footwell when the vehicle is moving;
never rest them on the dash panel, out the window or on the seat. An in-
correct sitting position exposes you to an increased risk of injury in case
of a sudden braking or an accident. If the airbag is triggered, you could
sustain severe injuries due to an incorrect sitting position.
● To reduce the risk of injury to the front passenger in events such sud-
den braking manoeuvres or an accident, never travel with the backrest
tilted far back! The airbag system and seat belts can only provide optimal
protection when the backrest is in an upright position and the front pas-
senger is wearing his or her seat belt properly. The further the backrests
are tilted to the rear, the greater the risk of injury due to incorrect posi-
tioning of the belt web or to the incorrect sitting position!
● Adjust the head restraint properly in order to achieve maximum pro-
tection.
 Correct sitting position for passengers in the rear seats
Passengers in the rear seats must sit up straight, keep their
feet on the footwells, have the head restraints positioned for
use and wear their seat belts properly.
To reduce the risk of injury in the event of a sudden braking ma-
noeuvre or an accident, passengers on the rear bench seat must
consider the following:
–
Adjust the head restraint to the correct position ⇒ page 14.
– Keep both feet in the footwell in front of the rear seat.
– Fasten your seat belt securely ⇒ page 19.
– Use an appropriate child restraint system when you take chil-
dren in the vehicle ⇒ page 47.
WARNING
● If the passengers on the rear seat are not sitting properly, they could
sustain severe injuries.
● Adjust the head restraint properly in order to achieve maximum pro-
tection.
● Seat belts can only provide optimal protection when backrests are in
an upright position and the passengers are wearing their seat belts prop-
erly. If passengers on the rear seat are not sitting in an upright position,
the risk of injury due to incorrect positioning of the seat belt increases.


16Safe driving
Pedal area
Pedals
The operation of all pedals must never be impaired by ob-
jects or floor mats. – Ensure that you can always press the accelerator, brake and
clutch pedals unimpaired to the floor.
– Ensure that the pedals can return unimpaired to their initial po-
sitions.
Use only floor mats which leave the pedal area free and can be securely fas-
tened on the footwell.
If a brake circuit fails, the brake pedal must be pressed down thoroughly in
order to stop the vehicle.
Wearing suitable shoes
Always wear shoes which support your feet properly and give you a good
feeling for the pedals.
WARNING
● Restricting pedal operation can lead to critical situations while driv-
ing.
● Never place objects on the driver footwell. An object could move into
the pedal area and impair pedal operation. In the event of a sudden driv-
ing or braking manoeuvre, you will not be able to operate the brake,
clutch or accelerator pedal. Risk of accident!
 Floor mats on the driver side
Only floor mats may be used which can be securely fastened
in the footwell and do not impair operation of the pedals.
– Ensure that the floor mats are securely fastened during the trip
and do not obstruct the pedals ⇒ 
.
Only use floor mats which leave the pedals clear and which are secured to
prevent them from slipping. You can obtain suitable floor mats from a speci-
alised dealership.
WARNING
● If the pedals are obstructed, an accident may occur. Risk of serious
injuries.
● Ensure that the floor mats are always securely attached.
● Never lay or fit floor mats or other floor coverings over the original
floor mats. This would reduce the pedal area and could obstruct the ped-
als. Risk of accident.

Storing objects Loading the luggage compartment
All luggage and other loose objects must be safely secured
in the luggage compartment.
Unsecured objects which shift back and forth could impair the driv-
ing safety or driving characteristics of the vehicle by shifting the
centre of gravity. 

17
Safe driving
– Distribute the load evenly in the luggage compartment.
– Place heavy objects as far forward as possible in the luggage
compartment.
– Place the heavy objects first.
– Secure heavy objects to the fitted fastening rings ⇒ page 17.
WARNING
● Loose luggage and other objects in the luggage compartment could
cause serious injuries.
● Always stow objects in the luggage compartment and secure them on
the fastening rings.
● Use suitable straps to secure heavy objects.
● During sudden manoeuvres or accidents, loose objects can be thrown
forward, injuring vehicle occupants or passers-by. This increased risk of
injury will be further increased if a loose object is struck by an inflating
airbag. If this happens, objects can be transformed into “missiles”. Risk
of fatal injury.
● Please note that the centre of gravity may shift when transporting
heavy objects; this may affect the vehicle's handling and lead to an acci-
dent. Therefore, it is essential to adjust your speed and driving style ac-
cordingly, to avoid accidents.
● Never exceed the allowed axle weights or allowed maximum weight.
If the allowed axle load or the allowed total weight is exceeded, the driv-
ing characteristics of the vehicle may change, leading to accidents, inju-
ries and damage to the vehicle.
● Never leave your vehicle unattended, especially when the rear lid is
open. Children could climb into the luggage compartment, closing the
door behind them; they will be trapped and run the risk of death.
WARNING (Continued)
● Never allow children to play in or around the vehicle. Close and lock
all the doors and rear lid when you leave the vehicle. Before you lock the
vehicle, make sure that there are no adults or children in the vehicle.
● Never transport passengers in the luggage compartment. All passen-
gers must have their seat belt fastened ⇒ page 19.
Note
● Air circulation in the vehicle helps reduce fogging of the windows. Used
air escapes through ventilation slits in the side trim of the luggage compart-
ment. Ensure that the ventilation slits are never covered.
● Straps for securing the load to the fastening rings are commercially
available. 
Fastening rings
There can be four fastening rings in the luggage compart-
ment for fastening luggage and other objects.
– Always use suitable and undamaged straps to secure luggage
and other objects to the fastening rings ⇒ 
in Loading the lug-
gage compartment on page 17.
– Pull up the fastening rings to attach the straps.
During a collision or an accident, even small and light objects can build up
so much energy that they can cause very severe injuries. The amount of ki-
netic energy depends on the speed of the vehicle and the weight of the ob-
ject. The most significant factor, however, is the speed of the vehicle.
Example: An object weighing 4.5 kg is lying unsecured in the vehicle. Dur-
ing a frontal collision at a speed of 50 km/h, this object generates a force
corresponding to 20 times its weight. That means that the effective weight 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

18Safe driving
of the object increases to about 90 kg. You can imagine the severity of the
injuries which might be sustained if this object strikes an occupant as it
flies through the passenger compartment. This increased risk of injury will
be further increased if a loose object is struck by an inflating airbag.
WARNING
● If pieces of luggage or other objects are secured to the fastening
rings with inappropriate or damaged retaining cords, injuries could be
sustained in the event of braking manoeuvres or accidents.
● To prevent pieces of luggage or other objects from flying forward, al-
ways use appropriate retaining cords which are secured to the fastening
rings.
● Never secure a child seat on the fastening rings.


19
Seat belts
Seat belts
Brief introduction Before driving: remember your seat belt!
Wearing a seat belt properly can save your life!
In this chapter you will learn the importance of wearing seat belts,
how they work and how to properly fasten, adjust and wear them.
– Read and consider all the information as well as the warnings in
this chapter.
WARNING
● If seat belts are worn incorrectly or not at all, the risk of severe inju-
ries increases.
● Properly worn seat belts can reduce severe injuries in case of sudden
braking manoeuvres or accidents. For safety reasons, you and your pas-
sengers must always wear the seat belts properly while the vehicle is
moving.
● Pregnant women or people with physical disabilities must also use
seat belts. Like all other passengers, these people can also sustain se-
vere injuries if they are not wearing their seat belts properly.

Number of seats
Your vehicle has five seats, two in the front and three in the rear. Each seat
is equipped with a three-point seat belt. In some versions, your vehicle is approved
only for four seats. Two front
seats and two rear seats.
WARNING
● More people than available seats must never be transported in your
vehicle.
● Every passenger in the vehicle must properly fasten and wear the
seat belt belonging to his or her seat. Children must be protected with an
appropriate child restraint system.

Seat belt warning lamp* 
The warning lamp acts as a reminder to the driver to fasten
the seat belt.
Before starting the vehicle:
– Fasten your seat belt securely.
– Instruct your passengers to fasten their seat belts properly be-
fore driving off.
– Protect children by using a child seat according to the child's
height and weight.
After switching on the ignition, the warning lamp  will remain lit until the
driver and front passenger (if applicable) have fastened their seat belts.
When the vehicle has reached a certain speed, you will also hear a warning
signal and the warning light will flash. 
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22Seat belts
Seat belt protection
Passengers not wearing seat belts risk severe injuries in the
event of an accident.
Fig. 10 A driver wearing
the seat belt properly is
secured by the belt in
sharp braking
Properly worn seat belts hold the vehicle occupants in the correct sitting po-
sitions and substantially reduce the kinetic energy in the event of an acci-
dent. Seat belts also help to prevent uncontrolled movements that could
lead to severe injuries. In addition, properly worn seat belts reduce the dan-
ger of being thrown from the vehicle.
Passengers wearing their seat belts correctly benefit greatly from the ability
of the belts to absorb kinetic energy. The front part of your vehicle and other
passive safety features (such as the airbag system) are also designed to ab-
sorb the kinetic energy released in a collision. Taken together, all these fea-
tures reduce the releasing kinetic energy and consequently, the risk of in-
jury.
Our examples describe frontal collisions. Of course, properly worn seat belts
substantially reduce the risk of injury in all other types of accidents. This is
why it is so important to fasten seat belts before every trip, even when "just
driving around the corner". Ensure that your passengers wear their seat belts as well. Accident statistics
have shown that wearing seat belts is an effective means of substantially
reducing the risk of injury and improving the chances of survival in a seri-
ous accident. Furthermore, properly worn seat belts improve the protection
provided by airbags in the event of an accident. For this reason, wearing a
seat belt is required by law in most countries.
Although your vehicle is equipped with airbags, the seat belts must be fas-
tened and worn. The front airbags, for example, are only triggered in some
frontal accidents. The front airbags will not be triggered during minor frontal
collisions, minor side collisions, rear collisions, overturns or accidents in
which the airbag trigger threshold value in the control unit is not exceeded.
Therefore, you should always wear your seat belt and ensure that your pas-
sengers have fastened their seat belts properly before you drive off!

Safety instructions on using seat belts
If seat belts are used correctly, they can reduce the risk of in-
jury in an accident.
– Always wear the seat belt as described in this section.
– Ensure that the seat belts can be fastened at all times and are
not damaged. 

23
Seat belts
WARNING
● If the seat belts are worn incorrectly or not at all, the risk of severe
injuries increases. The optimal protection from seat belts can be ach-
ieved only if you use them properly.
● Fasten your seat belt before every trip - even when driving in town.
The other passengers must also wear the seat belts at all times, other-
wise they run the risk of being injured.
● The seat belt cannot offer its full protection if the seat belt is not
positioned correctly.
● Never allow two passengers (even children) to share the same seat
belt.
● Keep both feet in the footwell in front of your seat as long as the vehi-
cle is in motion.
● Never unbuckle a seat belt while the vehicle is in motion. Risk of fatal
injury.
● The seat belt must never be twisted while it is being worn.
● The seat belt should never lie on hard or fragile objects (such as
glasses or pens, etc.) because this can cause injuries.
● Do not allow the seat belt to be damaged or jammed, or to rub on any
sharp edges.
● Never wear the seat belt under the arm or in any other incorrect posi-
tion.
● Loose, bulky clothing (such as an overcoat over a jacket) impairs the
proper fit and function of the belts, reducing their capacity to protect.
● The slot in the seat belt buckle must not be blocked with paper or
other objects, as this can prevent the latch plate from engaging securely.
● Never use seat belt clips, retaining rings or similar instruments to al-
ter the position of the belt webbing.WARNING (Continued)
● Frayed or torn seat belts or damage to the connections, belt retrac-
tors or parts of the buckle could cause severe injuries in the event of an
accident. Therefore, you must check the condition of all seat belts at reg-
ular intervals.
● Seat belts which have been worn in an accident and stretched must
be replaced by a specialised workshop. Renewal may be necessary even
if there is no apparent damage. The belt anchorage should also be
checked.
● Do not attempt to repair a damaged seat belt yourself. The seat belts
must not be removed or modified in any way.
● The belts must be kept clean, otherwise the retractors may not work
properly ⇒ page 226.

Safety FirstOperating InstructionsPractical TipsTechnical Specifications