differential SKODA ROOMSTER 2006 1.G Owner's Manual

Instruments and Indicator/Warning Lights35
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Selector lever lock*  (automatic gearbox)
If the warning light  lights up, operate the brake pedal. This is neces-
sary, in order to be able to move the selector lever out of the position P or
N .
Electronic stability programme (ESP)*
The warning light  comes on for a few seconds when the ignition is
switched on.
Components of the ESP system also include the Traction Control System
(TCS), Electronic Differential Lock (EDL), and the Antilock Brake System
ABS (ABS).
The warning light comes on when driving when a control cycle is acti-
vated.
The warning light will come on and remains on if the ESP is switched off
or if there is a fault in the system.
The fact that the ESP system operates together with the ABS means that
the ESP warning light will also come on if the ABS system is not operating
properly.
Further information on the ESP ⇒page 177, “Electronic stability
programme (ESP)*”.
Electronic Differential Lock (EDL)*
The EDL is a part of the ESP. A fault in the EDL is indicated by the ESP
warning light
 in the instrument cluster. Have the vehicle inspected
immediately by your specialist garage. Further information on the EDL
⇒ page 179.
Antilock brake system (ABS)* 
The warning light  shows the functionality of the ABS.
The warning light comes on for a few seconds after the ignition has been
switched on or when starting the engine. The warning light goes out after
an automatic check sequence has been completed.
A fault in the ABS
The system is not functioning properly if the ABS warning light
 does
not go out within a few seconds after switching on the ignition, does not
light up at all or lights up while driving. The vehicle will only be braked by
the normal brake system. Visit a specialist garage as quickly as possible
and adjust your style of driving in the meantime since you will not know
how great the damage is.
Three additional warning tones will sound if there is a major fault in the
ABS.
Further information about ABS ⇒page 181, “Antilock brake system
(ABS)*”.
A fault in the entire brake system
If the ABS warning light
 comes on together with the brake system
warning light  (handbrake must be released), there is a fault not only in
the ABS but also in another part of the brake system ⇒.
The following text will be displayed in the information display*: STOP BRAKE FAULT OWNER'S MANUAL!
WARNING
•If the brake system warning light  comes on together with the
ABS warning light  stop the vehicle immediately and check the
brake fluid level in the reservoir ⇒page 218, “Brake fluid”. If the
fluid level has dropped below the MIN marking, do not drive any
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Intelligent Technology177
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Driving Tips
Intelligent Technology
Electronic stability programme (ESP)*
General
General
The ESP aids you maintain control of your vehicle in situations in border-
line driving situations such as when negotiating a curve too fast. The risk
of skidding is reduced and your car thus offers greater driving stability
depending on the conditions of the road surface. This occurs at all speeds.
The following systems are integrated into the electronic stability
programme:
•Electronic Differential Lock (EDL),
•Traction control system (TCS),
•Antilock brake system (ABS),
•Brake Assist.
Operating principle
The ESP switches on automatically when the engine is started and then
conducts a self-test. The ESP control unit processes data from the indi-
vidual systems. It also processes additional measurement data which are
supplied by highly sensitive sensors: the rotational velocity of the vehicle
about its vertical axis, the lateral acceleration of the vehicle, the braking
pressure and the steering angle.
The direction which the driver wishes to take is determined based on the
steering angle and the speed of the vehicle and is constantly compared
with the actual behaviour of the vehicle. If differences exist, such as the
car beginning to skid, the ESP will automatically brake the appropriate
wheel.
The car is stabilised again by the forces which take effect when the wheel
is braked. Intervention into the brake system takes place primarily on the
outer front wheel of a vehicle which tends to oversteer (tendency for the
rear of the vehicle to break away) while occurs this is on the inner rear
wheel of a vehicle which tends to understeer (tendency to shift out of the
curve). This braking control cycle is accompanied by noises.
The ESP operates in combination with the ABS ⇒page 181, “Antilock
brake system (ABS)*”. If there is a fault in the ABS system, the ESP also
does not operate.
Fig. 145 ESP switch
NKO 20 A05.book Page 177 Wednesday, June 21, 2006 1:42 PM

Intelligent Technology179
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
mitted to the road surface is automatically adapted by reducing the engine
speed. This occurs at all speeds.
The TCS operates in combination with the ABS
⇒page 181, “Antilock
brake system (ABS)*”. The TCS will not f unction if a fault exists in the ABS
system.
The TCS warning light ⇒page 34 lights up in the instrument cluster when
there is a fault on the TCS.
Switching off
You can switch the TCS off and on again as you wish by pressing the
button ⇒page 178, fig. 146 . The TCS warning light ⇒page 34 lights up
in the instrument cluster when the TCS is switched off.
The TCS should normally always be switched on. It may be good practice
in certain exceptional cases, such as when you wish to have wheel slip,
to switch off the system.
Examples:
•when driving with snow chains,
•when driving in deep snow or on a loose surface,
•when it is necessary to rock a car free when it has become stuck.
then you should switch on the TCS again.
WARNING
You should always adjust your style of driving to the conditions of
the road surface and the traffic situation. The increased safety
offered must not tempt you to take greater risks than otherwise -
risk of an accident!
Note
•All four wheels must be fitted with the same tyres in order to achieve
problem-free operation of the TCS. Differing rolling circumferences of the
tyres can lead to an undesirable reduction in the engine output.
•Changes to vehicle (e.g. on engine, on the brakes, on chassis or other
assignment of tyres and wheels) can influence the function of the TCS
⇒ page 232, “Accessories, changes and replacement of parts”.
Electronic Differential Lock (EDL)*
The electronic differential lock prevents an individual
wheel from slipping.
Models fitted with ESP are equipped with electronic differential lock (EDL).
General
The EDL makes it much easier, and sometimes at all possible, to start off,
accelerate and climb a steep hill when the conditions of the road surface
are unfavourable.
Operating principle
The EDL is activated automatically, that is without any action on the part
of the driver. It monitors the speeds of the driven wheels with the aid of the
ABS sensors. Should only one drive wheel begin spinning on a slippery
surface there will be an appreciable difference in the speed of the driven
wheels. The EDL function brakes the slipping wheel and the differential
transmits a greater driving force to the other driven wheel. This control
process is also accompanied by noises.
Overheating of the brakes
The EDL switches off automatically if unusually severe stresses exist in
order to avoid excessive heat generation in the disc brake on the wheel
NKO 20 A05.book Page 179 Wednesday, June 21, 2006 1:42 PM

Index
266
Child safety lock . . . . . . . . . . . . . . . . . . . . . . 42
Child safety seat
on the front passenger seat . . . . . . . . . 168
Safety information . . . . . . . . . . . . . . . . . 166
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Classification into groups . . . . . . . . . . . 170
ISOFIX system . . . . . . . . . . . . . . . . . . . 174
Children and safety . . . . . . . . . . . . . . . . . . . 166
Chrome parts . . . . . . . . . . . . . . . . . . . . . . . 200
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . 88
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Climatronic Air outlet vents . . . . . . . . . . . . . . . . . . . 108
Defrosting windows . . . . . . . . . . . . . . . . 106
Recirculated air mode . . . . . . . . . . . . . . 107
Setting temperature . . . . . . . . . . . . . . . . 107
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Clothes hooks . . . . . . . . . . . . . . . . . . . . . . . . 95
Cockpit General view . . . . . . . . . . . . . . . . . . . . . . 11
Compartments . . . . . . . . . . . . . . . . . . . . . . . 90
Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Convenience operation . . . . . . . . . . . . . . . . . 53
Converting/masking over headlights . . . . . . 192
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 replenishing . . . . . . . . . . . . . . . . . . . . . . 217
Warning light . . . . . . . . . . . . . . . . . . . . . . 31
Coolant level Warning light . . . . . . . . . . . . . . . . . . . . . . 31
Coolant temperature gauge . . . . . . . . . . . . . 14 Coolant temperature/coolant level
Warning light . . . . . . . . . . . . . . . . . . . . . . 31
Cornering lights . . . . . . . . . . . . . . . . . . . . . . . 56 Warning light . . . . . . . . . . . . . . . . . . . . . . 29
Correct seated position . . . . . . . . . . . . . . . . 143
Counter for distance driven . . . . . . . . . . . . . . 15
Cruise control system . . . . . . . . . . . . . . . . . 116
Cup holder front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
D
Deactivating an airbag . . . . . . . . . . . . . . . . 163
Defrosting rear window . . . . . . . . . . . . . . . . . 62
Defrosting windows . . . . . . . . . . . . . . . . 97, 101
De-icing the windows . . . . . . . . . . . . . . . . . 200
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Diesel enginesStarting the engine . . . . . . . . . . . . . . . . 112
Diesel particle filter Warning light . . . . . . . . . . . . . . . . . . . . . . 37
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Direction indicators . . . . . . . . . . . . . . . . . . . . 59 Warning light . . . . . . . . . . . . . . . . . . . . . . 29
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Distance driven . . . . . . . . . . . . . . . . . . . . . . . 15
Door Child safety lock . . . . . . . . . . . . . . . . . . . 42
Warning light . . . . . . . . . . . . . . . . . . . . . . 33
Door, tailgate and bonnet ajar warning . . . . . 24 Driving economically . . . . . . . . . . . . . . . . . . 187
Driving time . . . . . . . . . . . . . . . . . . . . . . . . . . 21
E
EDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Electric power-operated window
Operational faults . . . . . . . . . . . . . . . . . . . 53
Electrically adjustable rear mirror . . . . . . . . . 66
Electronic Differential Lock . . . . . . . . . . . . . 179 Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Electronic Differential Lock (EDL) . . . . . . . . 179
Electronic immobiliser . . . . . . . . . . . . . . . 32, 41 Warning light . . . . . . . . . . . . . . . . . . . . . . 32
Electronic stability programme (ESP) . . . . . 177 Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Emergency locking of the door . . . . . . . . . . . 46
Engine starting . . . . . . . . . . . . . . . . . . . . . . . . . . 111
switching off . . . . . . . . . . . . . . . . . . . . . . 112
Engine compartment Safety information . . . . . . . . . . . . . . . . . 210
Engine electronics Warning light . . . . . . . . . . . . . . . . . . . . . . 30
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 change . . . . . . . . . . . . . . . . . . . . . . . . . . 215
check . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
replenishing . . . . . . . . . . . . . . . . . . . . . . 214
Warning light . . . . . . . . . . . . . . . . . . . . . . 32
Engine revolutions counter . . . . . . . . . . . . . . 14
Environment . . . . . . . . . . . . . . . . . . . . . . . . 187
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