2012 Seat Exeo ST differential

70Cockpit
Where a turn signal bulb does not work, either on the trailer or on the tow-
ing vehicle, the turn signal bulb will not flash. 
Anti-lock brake system (ABS) 
The warning lamp monitors the ABS and the integrated elec-
tronic differential lock (EDL).
The warning lamp  lights up for a few seconds when the ignition is switch-
ed on and while the engine is being started. The lamp goes out again after
the system has run through an automatic test sequence.
There is a fault in the ABS if:
● The warning lamp does not light up when the ignition is switched on
● The warning lamp does not go out again after a few seconds
● The warning lamp lights up when the vehicle is moving
The vehicle can still brake in the normal way (except that the ABS control
function is out of action). Please take the vehicle to a specialised workshop
as soon as possible. For further information on the ABS, see ⇒ page 196.
If a malfunction should occur in the ABS, the ESC warning lamp will also
light up.
Entire brake system fault
If the ABS warning lamp  lights up together with the brake warning lamp
 ⇒  page 73 (with the handbrake released), this indicates not only a
fault in the ABS function, but probably also a malfunction in the main brake
system ⇒ 
.
The symbol  will light up on the instrument panel if there if a fault in the
brake system. Please refer to ⇒ page 80. Electronic differential lock (EDL) fault
The EDL works in conjunction with the ABS. The ABS indicator lamp will light
up  to indicate an EDL fault. Please take the vehicle to a specialised work-
shop as soon as possible. For further information on the EDL, see
⇒ page 197.
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 warning lamp  should light up together with the ABS
warning lamp , stop the vehicle immediately and check the brake fluid
level in the reservoir. If the fluid level has dropped below the "MIN" mark
you must not drive on, as there is a risk of accident. Obtain technical as-
sistance.
● If the brake fluid level is correct, the fault in the brake system may
have been caused by a fault in the ABS control function. As a result, the
rear wheels can lock relatively easily when braking. Under certain cir-
cumstances, the rear of the vehicle could suddenly sway from side to
side, with the subsequent danger of skidding. Drive carefully to the near-
est specialised workshop and have the fault repaired.

Seat belt warning lamp* 
The warning lamp acts as a reminder to the driver to fasten
the seat belt. 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.
For further information on the seat belts, see ⇒ page 24.

173
Driving
The Electronic Stability Control (ESC) contains the electronic differential lock
(EDL) and the traction control system (ASR). The ESC works together with
the ABS. If a fault in the ABS occurs, both warning lamps light up, but if the
ESC fails, only the ESC warning lamp lights up.
The ESC system is started automatically when the engine is started.
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 surfaces.
● When the vehicle is stuck, to rock it backwards and forwards.
Press the button to switch the ASR back on when you no longer need wheel
spin.
Situations in which the warning lamp lights 
●
On switching the ignition on, it lights up for about two seconds to carry
out a function control.
● The warning lamp will start flashing when the vehicle is moving if the
ESC or the ASR is activated.
● It will light up continuously if there is a fault in the ESC.
WARNING
● Do not forget that the electronic stability control ESC cannot 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 situation. The greater safety provided by the ESC should not
encourage you to run any risks.
● Please refer to the corresponding warning notes on ESC in
⇒ page 195, Intelligent technology.

Ignition lock Ignition key positions
The ignition key is used to start and stop the engine.
Fig. 145 Ignition key po-
sitions 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

195
Intelligent technology
Practical Tips Intelligent technology
Electronic Stability Control (ESC)
General Observations
The Electronic Stability Control increases the vehicle's stabil-
ity on the road.
Fig. 163 Centre console
with ESC switch
The ESC is designed to increase the degree of control in situations where
the vehicle approaches the limits of adhesion, especially when accelerating
and cornering. It reduces the risk of skidding and improves stability in all
road conditions. The system is active across the entire speed range. The anti-lock brake system (ABS), the electronic differential lock (EDL) and
the traction control system (ASR) are all integrated into the Electronic Stabil-
ity Control.
How it works
The ESC control unit processes data from the three integrated systems. It al-
so processes additional inputs provided by other high-precision sensors.
These register the vehicle's rotation about the vertical axis (yaw rate), later-
al acceleration, brake pressure and steering wheel angle.
The system uses the steering wheel angle and road speed to calculate the
changes of direction desired by the driver, and constantly compares them
with the actual behaviour of the vehicle. If the desired course is not being
maintained (for instance, if the vehicle is starting to skid), then the ESC
compensates automatically by braking the appropriate wheel.
The forces acting on the braked wheel bring the vehicle back to a stable
condition. If the vehicle
over swerves (tendency of the rear to leave the
road), the brakes will act on the front wheel facing the outside of the bend.
If the vehicle under swerves (tendency to leave the bend), the braking force
is applied to the rear wheel facing the inside of the bend.
The ESC works in conjunction with the ABS ⇒ page 196. If a malfunction
should occur in the ABS, the ESC will also stop working.
Deactivating
The ESC is activated automatically when the engine is started and performs
a self-test routine.
The ESC cannot be deactivated. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

197
Intelligent technology
WARNING
Please remember that the accident risk always increases if you drive too
fast, especially in corners or on a slippery road, or if you follow too close
behind the vehicle in front of you. An increased accident risk cannot be
compensated even by the brake assist system. Risk of accident.

Electronic differential lock (EDL)
The electronic differential lock prevents the loss of traction
caused if one wheel starts spinning. General notes
The electronic differential lock (EDL) helps the vehicle to start moving, ac-
celerate and climb a gradient in slippery conditions where this may other-
wise be difficult or even impossible.
How it works
The EDL works automatically, without the driver's involvement. With the aid
of the ABS sensors, the system monitors the rotational speed of the drive
wheels ⇒ page 196. If a considerable difference in revs is detected (approx.
100 rpm) in the speed of the drive wheels, e.g. when only one part of the
surface supporting the wheels is slippery, the system applies the brake to
slow down the skidding wheel so that more of the power is directed to the
other wheels. The systems works up to a speed of approx. 80 km/h. The
system will make noise while it is working.
Starting the vehicle
If one wheel has less grip and starts spinning (for instance, if one of the
drive wheels is on ice), keep pressing the accelerator gradually until the ve-
hicle starts moving. Overheating of the brakes
To prevent the brake disk of the braked wheel from overheating, the EDL
cuts out automatically if subjected to excessive loads. In this case, the vehi-
cle will continue to run and will have the same running properties as those
of another without EDL.
The EDL will switch on again automatically when the brake has cooled
down.
WARNING
● When accelerating on a uniformly slippery surface (for instance all
four wheels on ice or snow), press the accelerator gradually and careful-
ly. Despite EDL, the drive wheels may otherwise start to spin. This could
impair the vehicle's stability. Risk of accident.
● Even with EDL, you should always adjust your speed to suit the road
and traffic conditions. Do not let the extra safety features tempt you into
taking any risks when driving. Failure to do so could result in an accident.
Note
If the ABS warning lamp lights up, this can also mean there is a fault in the
EDL. Take the vehicle to a specialised workshop as soon as possible. 
Traction control system (ASR)
The traction control system prevents the drive wheels from
spinning when the vehicle is accelerating. General notes
The traction control system (ASR) is one of the functions incorporated in the
Electronic Stability Control (ESC) 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

Cruise control system . . . . . . . . . . . . . . . . . . . . 183Adjust the stored speed . . . . . . . . . . . . . . . 185
Deactivating . . . . . . . . . . . . . . . . . . . . . . . . 186
Deactivating temporarily . . . . . . . . . . . . . . 185
Setting the speed . . . . . . . . . . . . . . . . . . . . 184
Cruise speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 43
D Danger of fitting a child seat on the front pas- senger seat . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Dash panel cleaning . . . . . . . . . . . . . . . . . . . . 226
Data entry control . . . . . . . . . . . . . . . . . . . . . . . . 92
Date display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Daytime running lights . . . . . . . . . . . . . . . . . . 122
Deactivating front passenger airbag Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 46
Deactivating the airbag Front passenger airbag . . . . . . . . . . . . . . . . 45
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Diesel engine Winter driving . . . . . . . . . . . . . . . . . . . . . . . 233
Diesel engine particulate filter . . . . . . . . . . . . 203
Diesel particulate filter . . . . . . . . . . . . . . . . . . . 83 Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Dipped beam headlights . . . . . . . . . . . . . . . . . 117 DIS
Average fuel consumption . . . . . . . . . . . . . . 88
Average speed . . . . . . . . . . . . . . . . . . . . . . . 88
Driving time . . . . . . . . . . . . . . . . . . . . . . . . . 88
Instantaneous fuel consumption . . . . . . . . 88
Disposal Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Seat belt tensioners . . . . . . . . . . . . . . . . . . . 28
Distance covered . . . . . . . . . . . . . . . . . . . . . . . . 89
Distance to empty . . . . . . . . . . . . . . . . . . . . 76, 88
Door and rear lid warning . . . . . . . . . . . . . . . . . 77
Door lock cylinders . . . . . . . . . . . . . . . . . . . . . . 220
Doors Childproof lock . . . . . . . . . . . . . . . . . . . . . . 107
Locking the doors manually if the centrallocking fails to work . . . . . . . . . . . . . . . . 105
Driver see Correct sitting position . . . . . . . 10, 11, 12
Driver information system . . . . . . . . . . . . . . . . . 74 Auto-check system . . . . . . . . . . . . . . . . . . . . 78
CD and radio display . . . . . . . . . . . . . . . . . . 75
Door and rear lid warning . . . . . . . . . . . . . . 77
Driver messages . . . . . . . . . . . . . . . . . . . . . . 79
Handbrake warning . . . . . . . . . . . . . . . . . . . 79
Menu display . . . . . . . . . . . . . . . . . . . . . . . . 91
Onboard computer . . . . . . . . . . . . . . . . . . . . 88
Outside temperature display . . . . . . . . . . . . 75
Red symbols . . . . . . . . . . . . . . . . . . . . . . . . . 80
Speed warning . . . . . . . . . . . . . . . . . . . . . . . 85
Warning messages . . . . . . . . . . . . . . . . . . . . 79
Yellow symbols . . . . . . . . . . . . . . . . . . . . . . . 82
Driver messages . . . . . . . . . . . . . . . . . . . . . . . . . 79 driver seat
Assigning the key to the seat . . . . . . . . . . 141
Driver seat Activating stored settings . . . . . . . . . . . . . 140
With memory . . . . . . . . . . . . . . . . . . . . . . . 139
Driving Driving abroad . . . . . . . . . . . . . . . . . . . . . . 205
Economically / Environmentally friendly . 203
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . . . 205 Headlights . . . . . . . . . . . . . . . . . . . . . . . . . 205
Driving safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DRP see Dynamic gear control programme . . . 191
Dynamic gear control programme . . . . . . . . . . 191
E
Economical driving . . . . . . . . . . . . . . . . . . . . . . 203
Electric socket . . . . . . . . . . . . . . . . . . . . . . . . . 156
Electric windows . . . . . . . . . . . . . . . . . . . . . . . . 112 Central locking system . . . . . . . . . . . . . . . . 114
Possible malfunctions . . . . . . . . . . . . . . . . 114
Rear doors . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Switches on the driver door . . . . . . . . . . . . 112
Switch on front passenger's door . . . . . . . 113
Electronic differential lock How it works . . . . . . . . . . . . . . . . . . . . . . . . 197
Electronic immobiliser . . . . . . . . . . . . . . . . . . . 101
Electronic Stability Control . . . . . . . . . . . . . . . . 71 description . . . . . . . . . . . . . . . . . . . . . . . . . 172
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 195
warning lamp . . . . . . . . . . . . . . . . . . . . . . . 173
315
Index

natural leather . . . . . . . . . . . . . . . . . . . . . . 225
non-electrically adjustable seats . . . . . . . 224
seats with airbag components . . . . . . . . . 224
seats without airbag components . . . . . . 224
trim fabrics . . . . . . . . . . . . . . . . . . . . . . . . . 224
unheated seats . . . . . . . . . . . . . . . . . . . . . . 224
Vehicle modifications . . . . . . . . . . . . . . . . . . . 228
Vehicle paintwork Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 218
Products for vehicle maintenance . . . . . . . 216
Vehicle washing . . . . . . . . . . . . . . . . . . . . . . . . 217
Ventilation slits . . . . . . . . . . . . . . . . . . . . . . . . . 17
W Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Warning lamps Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Anti-lock brake system . . . . . . . . . . . . . . . . . 70
Electronic differential lock . . . . . . . . . . . . . . 70
Engine management (EPC) . . . . . . . . . . . . . 72
Exhaust emission control system . . . . . . . . 68
Handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Red symbols in central display . . . . . . . . . . 80
Seat belt warning lamp . . . . . . . . . . . . . . . . 70
Yellow symbols on central display . . . . . . . 82
Warning lamps - overview . . . . . . . . . . . . . . . . . 67
Washer fluid level . . . . . . . . . . . . . . . . . . . . . . . . 84
Washing by hand . . . . . . . . . . . . . . . . . . . . . . . 217
Washing the vehicle . . . . . . . . . . . . . . . . . . . . . 217
Washing with high pressure cleaners . . . . . . . 218 Wear indicators . . . . . . . . . . . . . . . . . . . . . . . . 253
Wearing suitable shoes . . . . . . . . . . . . . . . . . . . 16
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Tightening torque . . . . . . . . . . . . . . . . . . . . 256
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 249, 303 Changing a wheel . . . . . . . . . . . . . . . . . . . 262
Why assume the correct sitting position? . . . . . 29
Why should head restraints be correctly adjus- ted? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Why wear seat belts? . . . . . . . . . . . . . . . 19, 20, 29
Windows Defrosting . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Windscreen washer system . . . . . . . . . . . . . . . 241
Windscreen wiper blades Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Windscreen wipers . . . . . . . . . . . . . . . . . . . . . . 129 Changing blades . . . . . . . . . . . . . . . . . . . . 242
Changing the rear wiper blade . . . . . . . . . 243
Rain sensor . . . . . . . . . . . . . . . . . . . . . . . . . 129
Washer jets . . . . . . . . . . . . . . . . . . . . . . . . . 129
Winter Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Winter conditions Defrost function . . . . . . . . . . . . . . . . . . . . . 166
Winter driving Diesel engine . . . . . . . . . . . . . . . . . . . . . . . 233
Winter operation Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Wiper and washer system . . . . . . . . . . . . . . . . 129
Wooden trim cleaning . . . . . . . . . . . . . . . . . . . 226
321
Index