towing Seat Ibiza SC 2010 Owner's manual

Contents3
ContentsManual structure
. . . . . . . . . . . . . . . . . . . .
Content
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety First
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Safe driving
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . .
Proper sitting position for occupants . . . . . . . . .
Pedal area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storing objects . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belts
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . .
Why wear seat belts? . . . . . . . . . . . . . . . . . . . . . .
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Belt tensioners* . . . . . . . . . . . . . . . . . . . . . . . . . .
Airbag system
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . .
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deactivating airbags* . . . . . . . . . . . . . . . . . . . . .
Child safety
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . .
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing child seats . . . . . . . . . . . . . . . . . . . . . .
Operating Instructions
. . . . . . . . . . . .
Cockpit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Digital instrument panel display . . . . . . . . . . . .
Warning lamps . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering column controls*
. . . . . . . . . . . . . . . .
General information . . . . . . . . . . . . . . . . . . . . . .
Audio Control . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio + Telephone Control . . . . . . . . . . . . . . . . .
Unlocking and locking
. . . . . . . . . . . . . . . . . . . .
Central locking . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio frequency remote control* . . . . . . . . . . . .
Anti-theft alarm system* . . . . . . . . . . . . . . . . . . .
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Panorama tilting sunroof* . . . . . . . . . . . . . . . . .
Lights and visibility
. . . . . . . . . . . . . . . . . . . . . . .
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior lights . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windscreen wipers . . . . . . . . . . . . . . . . . . . . . . .
Rear view mirrors . . . . . . . . . . . . . . . . . . . . . . . . .
Seats and storage compartments
. . . . . . . . . .
The importance of correct seat adjustment . . . .
Head restraints . . . . . . . . . . . . . . . . . . . . . . . . . .
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage compartment . . . . . . . . . . . . . . . . . . . . .
Ashtrays, cigarette lighter and power socket . .
First-aid kit, warning triangle, fire extinguisher*
Luggage compartment . . . . . . . . . . . . . . . . . . . .
Air conditioning
. . . . . . . . . . . . . . . . . . . . . . . . . .
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air conditioning* . . . . . . . . . . . . . . . . . . . . . . . . . Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting and stopping the engine . . . . . . . . . . .
Start-Stop function* . . . . . . . . . . . . . . . . . . . . . .
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic gearbox* . . . . . . . . . . . . . . . . . . . . . .
Handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acoustic parking aid system* . . . . . . . . . . . . . . .
Cruise control* . . . . . . . . . . . . . . . . . . . . . . . . . . .
Practical Tips
. . . . . . . . . . . . . . . . . . . . . . . .
Intelligent technology
. . . . . . . . . . . . . . . . . . . . .
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-lock brake system and traction control ABS
Electronic Stability Programme (ESP)* . . . . . . . .
Driving and the environment
. . . . . . . . . . . . . .
Running-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust gas purification system . . . . . . . . . . . . .
Economical and environmentally friendly driving
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle maintenance and cleaning
. . . . . . . .
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle exterior maintenance . . . . . . . . . . . . . . .
Vehicle interior maintenance . . . . . . . . . . . . . . .
5
6
7
7
7
9
14
15
16
16
18
21
25
26
26
30
33
37
39
39
41
44
49
49
49
51 52
58
70
70
71
72
74
74
78
79
81
83
85
87
90
90
97
98
99
102
105
105
106
108
110
111
115
117
117
120
120
123 126
129
130
130
131
131
133
135
137
138
145
147
149
153
153
153
154
155
158
158
159
160
163
163
166
166
167
173
IbizaSC_EN.book Seite 3 Donnerstag, 2. September 2010 6:10 18

Contents
4Accessories, parts replacement and
modifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories and spare parts . . . . . . . . . . . . . . . .
Technical modifications . . . . . . . . . . . . . . . . . . .
Roof aerial* . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mobile telephones and two-way radios . . . . . . .
Fitting a towing bracket* . . . . . . . . . . . . . . . . . . .
Checking and refilling levels
. . . . . . . . . . . . . .
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Working in the engine compartment . . . . . . . . .
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washer fluid and windscreen wiper blades . . . .
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle battery . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If and when
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle tools, spare wheel . . . . . . . . . . . . . . . . .
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . .
Tyre repair kit (Tyre-Mobility-System)* . . . . . . . .
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb change . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Towing and tow-starting . . . . . . . . . . . . . . . . . . .
Technical Specifications
. . . . . . . . . .
Description of specifications
. . . . . . . . . . . . . .
Important information . . . . . . . . . . . . . . . . . . . . .
Information on fuel consumption . . . . . . . . . . . .
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications
. . . . . . . . . . . . . . . . . .
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . .
Petrol engine 1.2 44 kW (60 PS) . . . . . . . . . . . .
Petrol engine 1.2 51 kW (70 PS) . . . . . . . . . . . .
Petrol engine 1.4 63 kW (85 PS) . . . . . . . . . . . .
Petrol engine 1.2 TSI 77 kW (105 PS) . . . . . . . .
Petrol engine 1.2 TSI 77 kW (105 PS) Start&Stop
Petrol engine 1.6 77 kW (105 PS) . . . . . . . . . . .
Petrol engine 1.4 110 kW (150 PS) . . . . . . . . . .
Petrol engine 1.4 132 kW (180 PS) - Cupra . . . .
Diesel Engine 1.2 TDI CR 55 kW (75 PS) DPF
Start&Stop Ecomotive . . . . . . . . . . . . . . . . . . . . .
Diesel engine 1.2 TDI CR 55 kW (75 PS) DPF . . .
Diesel engine 1.4 TDI 59 kW (80 PS) Ecomotive
Diesel engine 1.6 TDI CR 66 kW (90 PS) DPF . . .
Diesel engine 1.6 TDI CR 77 kW (105 PS)
with/without DPF . . . . . . . . . . . . . . . . . . . . . . . . .
Diesel engine 2.0 TDI CR 105 kW (143 PS) DPF
Dimensions and capacities . . . . . . . . . . . . . . . .
Index
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
175
175
175
176
176
178
180
180
181
182
183
186
190
192
195
196
198
204
204
205
210
212
216
225
228
231
231
231
233
233
234 235
235
236
237
238
239
241
242
243
245
246
247
248
249
251
252
254
255
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Cockpit67
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Ta i l g a t e o p e n *

The warning lamp
 should switch off when the tailgate is fully closed.
Main beam headlights

The indicator lamp lights up when the main beams are on.The warning lamp
 is switched on once main beams are on or once the
headlight flasher is operating.
For further information see ⇒page 96.
Electro-hydraulic steering*

The level of steering assistance depends on the vehicle speed and on the
steering wheel turning speed.
The warning lamp should light up for a few seconds when the ignition is
switched on. It should go out once the engine is started.
There is a fault in the electro-hydraulic steering system if the lamp does not
go out or lights up whilst the vehicle is in motion. Take the vehicle to the
Authorised Service Centre as soon as possible.
Note
When towing the vehicle with the engine stopped or due to a fault in the
power steering, this will not operate. The vehicle can still be steered, but it
will require greater force to turn the steering wheel.
Emission control system*

This warning lamp monitors the exhaust system.
Warning lamp
 flashes:
When there is misfiring that can damage the catalytic converter. Reduce
speed and drive carefully to the nearest specialised workshop to have the
engine checked.
Warning lamp  is lit:
If a fault has developed during driving which has reduced the quality of the
exhaust gas (e.g. lambda probe fault). Reduce speed and drive carefully to
the nearest specialised workshop to have the engine checked.
Coolant level* / temperature
v
The warning lamp lights up if the coolant temperature is too
high or if the coolant level is too low.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
If the warning light comes on, stop the vehicle, switch off the engine 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 radiator fan. Check the radiator fan fuse and have it replaced if neces-
sary ⇒page 212.
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Unlocking and locking81
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Anti-theft alarm system*Description of anti-theft alarm system*
The anti-theft alarm triggers if unauthorised movements are
detected around the vehicle.The anti-theft alarm makes it more difficult to break into the vehicle or steal
it. The system will initiate acoustic and optical warning signals when your
vehicle is tried to be forced.
The anti-theft alarm system is automatically connected on locking the
vehicle. For this, either rotate the key in the locking position or press button
on the radio-frequency remote control*. The system is immediately
activated and the turn signal light located on the driver door will flash along
with the turn signals, indicating that the alarm and the locking security
system (double lock) have been turned on.
If any of the doors or the bonnet are open, they will not be included in the
protection zones of the vehicle when the alarm is connected. If the door or the
bonnet are subsequently closed, they will be automatically included in the
protection areas of the vehicle and the turn signals will flash accordingly
when the doors close.•The turn signal light will flash twice on opening and deactivating the
alarm.•The turn signal light will flash once on closing and activating the alarm.
When does the system trigger an alarm?
The system triggers an alarm if the following unauthorised actions are carried
out when the car is locked:•Opening of vehicle with mechanical key without switching ignition on
within the next 15 seconds•Opening a door
•Opening the bonnet•Opening the tailgate•Ignition switched on with a non-validated key.•Movements in the driving compartment (vehicles with a volume sensor)•Towing of the vehicle
8)
•Tilt angle (tow-away protection)
8)
•Undue manipulation of the alarm•Battery handling
The acoustic signals sound and the turn signals flash for approx. 30 seconds.
This may be repeated up to 10 times depending on the country.
How to switch the alarm off
To deactivate the anti-theft alarm, turn the key to the opening direction, open
the door and switch the ignition on, or press the unlocking button on the
remote control.
In vehicles equipped with an anti-theft alarm system, you have 15 seconds to
insert the key in the ignition lock and activate the ignition if the vehicle is
opened using the driver door key.
Otherwise, the alarm will trigger for 30 sec. and the ignition will be blocked.Note
•After 28 days, the indicator light will be switched off to prevent the battery
from exhausting if the vehicle has been left parked for a long period of time.
The alarm system remains activated.•The alarm will trigger again if attempts are made to open another protec-
tion zone.•The alarm system can be activated or deactivated using the remote
control. ⇒page 79.
A2
8)With vehicles fitted with a tow-away protection

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Unlocking and locking
82Interior monitoring and anti-towing alarm*
Monitoring or control function incorporated in the anti-theft
alarm* which detects unauthorized vehicle entry by means of
ultrasound.Activation
– It is connected automatically when the anti-theft alarm is acti-
vated.
Deactivation
– Open the vehicle with the key, either mechanically
9) or by
pressing the button on the remote control.
– Press the button on the remote control twice. The volumetric sensor and tilt sensors will be deactivated. The alarm system
remains activated.
The interior monitoring and the anti-towing alarm are automatically switched
on again next time the vehicle is locked.
The interior monitoring and anti-towing alarm (tilt sensor) are automatically
switched on when the anti-theft alarm is switched on. In order to activate it,
all the doors and the tailgate must be closed.
If you wish to disconnect the interior monitoring and the anti-towing system,
it must be done each time that the vehicle is locked; if not, they will connect
automatically.
The interior monitoring and the anti-towing system should be disconnected
if animals are left inside the locked vehicle (otherwise, their movements will trigger the alarm) or when, for example, the vehicle is transported or has to
be towed with only one axle on the ground.
False alarms
The interior monitoring only operates correctly if the vehicle is completely
closed. Please observe legal requirements when doing so.
The following cases may cause a false alarm:
•opened windows (partially or fully)•panorama/tilting sunroof open (partially or completely).•movement of objects inside the vehicle, such as loose papers, items
hanging from the rear view mirror (air fresheners), etc.Note
•If the vehicle is relocked and the alarm is activated without the volumetric
sensor function, relocking will activate the alarm with all its functions, except
the volumetric sensor. This function is reactivated when the alarm is switched
on again, unless it is deliberately switched off.•If the alarm has been triggered by the volumetric sensor, this will be indi-
cated by a flashing of the indicator on the driver door. The flash is different to
the flash indicating the alarm is activated.•The vibration of a mobile phone left inside the vehicle may cause the inte-
rior monitoring alarm to trigger, as both sensors react to movements and
shakes inside the vehicle.•If on activating the alarm, any door or the tailgate is open, only the alarm
will be activated. The interior monitoring and the anti-towing system will only
be activated once all the doors are closed (including the tailgate).
9)The time period from when the door is opened until the key is inserted in the contact
should not exceed 15 sec., otherwise the alarm will be triggered.


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Lights and visibility95
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Hazard warning lights

The hazard warning lights are used to draw the attention of
other road users to your vehicle in emergencies.
If your vehicle breaks down:
1. Park your vehicle at a safe distance from moving traffic.
2. Press the button to switch on the hazard warning lights ⇒.
3. Switch the engine off.
4. Apply the handbrake.
5. On a manual gearbox engage 1st gear, and for an automatic move the selector lever to P.
6. Use the warning triangle to draw the attention of other road users to your vehicle. 7. Always take the vehicle key with you when you leave the vehicle.
Switch on the hazard warning lights to warn other road users, for example
when:•reaching the tail end of a traffic jam,•there is an emergency•your vehicle breaks down due to a technical fault,•you are towing another vehicle or your vehicle is being towed.
All turn signals flash simultaneously when the hazard warning lights are
switched on. That is that the two turn signal turn signal lamps

and the
turn signal lamp in the switch
 will flash at the same time. The hazard
warning lights also work when the ignition is switched off.
WARNING
•The risk of an accident increases if your vehicle breaks down. Always
use the hazard warning lights and a warning triangle to draw the attention
of other road users to your stationary vehicle.•Never park where the catalytic converter could come into contact with
inflammable materials under the vehicle, for example dry grass or spilt
petrol. This could start a fire!Note
•The battery will run down if the hazard warning lights are left on for a long
time, even if the ignition is switched off.•The use of the hazard warning lights described here is subject to the rele-
vant statutory requirements.
Fig. 56 Centre console:
switch for hazard warning
lights
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Driving131
Safety First
Operating Instructions
Practical Tips
Technical Specifications
SafetyElectronic Stabilit y Programme (ESP)*
ESP helps make driving safer in certain situations.The Electronic Stability Programme (ESP) contains the electronic differential
lock (EDL) and the traction control system (TCS). The ESP function works
together with the ABS. Both warning lamps will light up if the ESP or ABS
systems are faulty.
The ESP is started automatically when the engine is started.
The ESP is always active, and cannot be switched off. With the ESP switch it is
only possible to switch TCS off.
WARNING
•The Electronic Stability Programme (ESP) 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. Do not let the extra safety afforded by ESP tempt you
into taking any risks when driving, as this can cause accidents.•Please refer to the corresponding warning notes on ESP in ⇒page 153,
“Intelligent technology”.
Ignition lockPosition of the ignition key
Fig. 94 Detailed view of
the centre console: ESP
button
Fig. 95 Ignition key posi-
tions
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Driving
148Reverse gear
The distance warning will begin as soon as an obstacle is detected by the
system. The frequency of the bleeps emitted by the system will increase
rapidly as the vehicle approaches the obstacle.
Within a short distance of about 30cm, a continuous signal sounds (stop
signal). The driver should not reverse any further.
Models with a factory-fitted towing bracket: When the vehicle is less than
0.35 m away from the obstacle the warning tone will sound continuously. The
driver should then not reverse any further.
The warning tone decreases by 30% after 3 seconds from the start of the
system.
Provided that it is not in continuous mode, the tone on the parking aid system
stops when it detects a wall parallel to the vehicle.
Trailer towing
For vehicles factory-fitted with a towing bar, the parking aid system will not
be activated by the engagement of the reverse gear when pulling a trailer, as
the trailer’s electric connector will be plugged into the vehicle.
Possible faults
If a continuous beep sounds for some seconds when the reverse gear is
engaged, this indicates that there is a fault in the parking aid system.
If the fault continues until the ignition is turned off, the acoustic signal
warning of the fault will not be emitted every time the system is reactivated
(by engaging the reverse gear). Thus, the system ready indication will not
sound either. Have the fault repaired by an Authorised Service Centre as soon
as possible.
If there is no ready signal or no acoustic warning signal, then the parking aid
loudspeaker is faulty and may not warn of obstacles.
To ensure that the system works properly, the sensors must be kept clean and
free of ice and snow.
WARNING
•The sensors have blind spots in which obstacles may not be detected.•Always look out for small children and animals because the system will
not always detect them. Always pay attention when reversing to avoid acci-
dents.•The parking aid is not a replacement for driver awareness. The driver
must take full responsibility for parking and other manoeuvres.Caution
•Please note that low obstacles detected by the system may no longer be
registered by the sensors as the car moves closer, so the system will not give
any further warning. Certain kinds of obstacles (such as wire fences, chains,
thin posts or trailer draw bars, high kerbs or painted railings etc) may not
always be detected by the system, so there is a risk of damaging the vehicle
in such cases.•In some cases, obstacles with uniform edges and bumps may not be
detected immediately by the system due to their geometry. Take special care
of this type of obstacle (corners, rectangular objects, etc.), as they can cause
damage to the vehicle.•Be especially careful when manoeuvring into a corner between two
perpendicular walls. Carefully watch the approach of the wall to the side of
the vehicle (using the mirrors).•The parking aid system does not replace use of the mirrors for manoeu-
vres.•External ultra-sonic sources (pneumatic drills, construction machinery,
other vehicles with PDC) may interfere with the operation of the system.•Periodic cleaning of the sensors, take care not to damage or scratch them.
When cleaning with high pressure washers or steam cleaners, the sensors
should be sprayed for only a very short period and from a distance of more
than 10 cm.
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Intelligent technology155
Safety First
Operating Instructions
Practical Tips
Technical Specifications
T h e T C S is s w i tch e d o n a u t o m a t i ca ll y w h e n t h e e n g i n e is s ta r t e d . I f n e ce s sa r y,
it may be turned on or off by briefly pushing the ESP button on the centre
console.
When the TCS is off, the warning lamp
l is lit. The TCS should normally be left
on. Only in exceptional circumstances, when the slipping of the wheels is
required, can they be disconnected using the ESP button, for example.
•With compact temporary spare wheel.•When using the snow chains.•When driving in deep snow or on loose surfaces•When the vehicle is bogged-down, to free it by rocking.
The TCS should be switched on again as soon as possible.WARNING
•It must be remembered that TCS 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. Do not let the extra safety afforded by TCS tempt you
into taking any risks when driving, this can cause accidents.Caution
•In order to ensure that TCS function 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 engine power when this is not desired.•Modifications to the vehicle (e.g. to the engine, the brake system, running
gear or any components affecting the wheels and tyres) could affect the effi-
ciency of the ABS and TCS.
XDS*
Driveshaft differentialWhen taking a bend, the driveshaft differential mechanism allows the outer
wheel to turn at a higher speed than the inner wheel. In this way, the wheel
that is turning faster (outer 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.
By using the ESP sensors and signals, the XDS system is able to detect and
correct this effect.
Through the ESP, the XDS brakes the inner wheel, thereby counteracting the
excess drive torque in this wheel. This means that the driver’s desired trajec-
tory is much more precise,
The XDS system operates in combination with the ESP and is always active,
even when the traction control, TCS, is disconnected.Electronic Stability Programme (ESP)*General notes
The Electronic Stability Programme increases the vehicle’s
stability on the road.The Electronic Stability Programme helps reduce the danger of skidding.
The Electronic Stability Programme (ESP) consists of ABS, EDL and TCS.
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Intelligent technology
156Electronic Stability Programme (ESP)*
ESP reduces the danger of skidding by braking the wheels individually.
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 ESP
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 tends to oversteer, the system will act on the front
wheel on the outside of the turn.
WARNING
•It must be remembered that ESP 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. Do not let the extra safety afforded by ESP tempt you
into taking any risks when driving, as this can cause accidents.Caution
•In order to ensure that ESP functions 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 engine power when this is not desired.•Modifications to the vehicle (e.g. to the engine, the brake system, running
gear or any components affecting the wheels and tyres) could affect the effi-
ciency of the ABS, EDL, ESP and TCS.
Anti-lock brake system (ABS)The anti-lock brake system prevents the wheels locking during braking
⇒ page 154.Electronic differential lock (EDL)*
The electronic differential lock helps prevent the loss of trac-
tion caused if one of the driven wheels starts spinning.EDL helps the vehicle to start moving, accelerate and climb a gradient in slip-
pery conditions where this may otherwise be difficult or even impossible.
The system will control the revolutions of the drive wheels using the ABS
sensors (in case of an EDL fault the warning lamp for ABS lights up)
⇒ page 63.
At speeds of up to approximately 80 km/h, it is able to balance out differ-
ences in the speed of the driven wheels of approximately 100 rpm caused by
a slippery road surface on one side of the vehicle. It does this by braking the
wheel which has lost traction and distributing 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 automatically if subjected to excessive loads. The vehicle will continue to
function normally without EDL. For this reason, the driver is not informed that
the EDL has been switched off.
The EDL will switch on again automatically when the brake has cooled down.
WARNING
•When accelerating on a slippery surface, for example on ice and snow,
press the accelerator carefully. Despite EDL, the driven wheels may start to
spin. This could impair the vehicle’s stability.
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