wheels SKODA OCTAVIA 2008 2.G / (1Z) Owner's Manual

Contents
4
Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multifunction steering wheel* . . . . . . . . . . . . . . . . .
Universal telephone preinstallation GSM II* . . . . .
Phone voice phonebook* . . . . . . . . . . . . . . . . . . . . .
Universal telephone preinstallation GSM III* . . . .
Phone voice phonebook* . . . . . . . . . . . . . . . . . . . . .
Mobile phones and two-way radio systems . . . . .
Input AUX-IN* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MDI input* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CD changer* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passive Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Correct seated position . . . . . . . . . . . . . . . . . . . . . . .
Seat belts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Why seat belts? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The physical principle of a frontal collision . . . . . .
Important safety information regarding the use of seat
belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How are seat belts correctly fastened? . . . . . . . . . .
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description of the airbag system . . . . . . . . . . . . . . .
Front airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side airbags* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head airbags* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deactivating an airbag . . . . . . . . . . . . . . . . . . . . . . . .
Transporting children safely . . . . . . . . . . . . . . . . . .
What you should know about transporting children!
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attaching a child seat using the “ISOFIX” system .
Attaching child seat using the “Top Tether” system
Driving Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intelligent Technology. . . . . . . . . . . . . . . . . . . . . . . . .
Electronic stability programme (ESP)* . . . . . . . . . .
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake booster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antilock brake system (ABS) . . . . . . . . . . . . . . . . . . .
Brake Assist* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Uphill-Start off-Assist* . . . . . . . . . . . . . . . . . . . . . . . .
Electromechanical power steering . . . . . . . . . . . . .
Tyre inflation pressure-control system* . . . . . . . . .
Diesel particle filter* (diesel engine) . . . . . . . . . . . .
Driving and the Environment . . . . . . . . . . . . . . . . .
The first 1 500 kilometres and then afterwards . .
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving in an economical and environmentally
conscious manner . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental compatibility . . . . . . . . . . . . . . . . . . .
Motoring abroad . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Avoiding damage to your vehicle . . . . . . . . . . . . . . .
Towing a trailer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Maintenance. . . . . . . . . . . . . . .
Taking care of your vehicle and cleaning the
vehicle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Care of the exterior of vehicle . . . . . . . . . . . . . . . . . .
Care of the interior of vehicle . . . . . . . . . . . . . . . . . .
Fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Biofuel Ethanol E85* . . . . . . . . . . . . . . . . . . . . . . . . . .
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspecting and replenishing . . . . . . . . . . . . . . . . . .
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . .
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield washer system . . . . . . . . . . . . . . . . . . . .
Wheels and Tyres. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories, changes and replacement of partsAccessories and replacement parts . . . . . . . . . . . . .
Technical changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Breakdown assistance . . . . . . . . . . . . . .
Breakdown assistance. . . . . . . . . . . . . . . . . . . . . . . . .
First-aid box* and Warning triangle* (Octavia) . . .
First-aid box* and warning triangle* (Estate car) .
Fire extinguisher* . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tyre repair kit* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare wheel* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tow-starting and towing vehicle . . . . . . . . . . . . . . . .
Fuses and light bulbs. . . . . . . . . . . . . . . . . . . . . . . . . .
Electric fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General information . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification details . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel consumption according to the regulations
(99/100/EU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine oil specifications . . . . . . . . . . . . . . . . . . . . . . .
141
141
143
150
152
158
160
161
161
162
163
163
163
164
168
168
169
169
170
174
174
175
178
180
181
184
184
187
190
191
193
193
193
196
197
197
197
198
198
199
200
201
201
202
202
206
206
207
208
208
211
211
211
211
216
219
219
219
221
222
224
224
227228
231
232
235
237
237
243
243
243
245
245
245
245
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246
246
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252
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257
257
262
269
269
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Instruments and Indicator/Warning Lights39
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
A fault in the ABS
The system is not functioning pr
operly 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 kn ow how great the damage is.
Further information about ABS ⇒page 197, “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 ⇒.
WARNING
•If the brake system warning light  comes on together with the ABS
warning light  stop the vehicle immediatel y and check the brake fluid
level in the reservoir ⇒page 231, “Brake fluid”. If the fluid level has dropped
below the MIN marking, do not drive any further - risk of accident! Contact
a Škoda dealer to obtain professional assistance.
•Pay attention to the following instructions ⇒page 225, “Working in the
engine compartment” before checking the brake fluid level and opening the
bonnet.
•If the brake fluid is at the correct level, the ABS control function has
failed. The rear wheels may then block ve ry rapidly when braking. In certain
circumstances, this can result in the rear end of the car breaking away - risk
of skidding! Drive carefully to the ne arest specialist garage and have the
fault rectified.
Bonnet 
The warning light  comes on if the bonnet is unl ocked. If the engine bonnet
unlocks while driving , the warning light lights up and an audible signal sounds.
The warning light comes on even when the ignition is switched off. The warning
light lights up for a maximum of 5 minutes. On vehicles with informatio
n display* this warning light is replaced by a vehicle
symbol ⇒page 27.
Seat belt warning light 
The warning light  comes on after the ignition is switched on as a reminder for the
driver and front passenger to fasten the seat belt. The warning light only goes out if
the driver or front passenger has fastened his seat belt.
If the seat belt has not been fastened by the driver or front passenger, a permanent
warning signal sounds at vehicle speeds greater than 20 km/h and simultaneously
the warning light
 flashes.
If the seat belt is not fastened by the dr iver or front passenger during the next 90
seconds, the warning signal is deactivated and the warning light
 lights up perma-
nently.
Further information on the seat belts ⇒page 168, “Seat belts”.
Thickness of the brake pads* 
The warning light  comes on for a few seconds 6) when the ignition is switched
on.
If the warning light
 comes on, contact a specialist garage immediately and have
the brake pads on all of the wheels inspected.
The following text will be displayed in the information display*: Check brake pads!
6)The warning light  on vehicles fitted with information display does not come on after
switching the ignition on, but only if a fault exists.
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Automatic gearbox135
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Information for driving with the automatic gearbox DSG*
The abbreviation DSG means Direct shift gearbox (Direct shift
gearbox).
Two independent clutches are needed for the power transmission
between the engine and the gearbox. These replace the torque converter
of the conventional automatic gearbox. Their shifting is matched in such
a way that there are no jerks when shifting the gear and the power trans-
mission of the engine to the front wheels is not interrupted. Shifting up
and down through the gears is perf ormed automatically. You can also,
however, switch the gearbox over into the Tiptronic mode. This mode
makes it possible for you to also shift gears manually ⇒page 138.
Starting-off and Driving
– Depress the brake pedal fully and keep it depressed.
– Press the Shiftlock button (button in handle of the selector lever),
move the selector lever into the desired position, e.g. in D, and then
release the Shiftlock button.
– Release the brake pedal and depress the accelerator ⇒.
Stopping for a short time
– The selector lever position N does not have to be selected when stop-
ping just for a short time, such as at a cross roads. It is absolutely suffi-
cient to hold the stopped vehicle stationary by depressing the foot
brake. The engine can, however, be allowed just to idle.
Parking
– Depress the brake pedal and hold it depressed.
– Apply the handbrake firmly.
– Press and Shiftlock button in the selector lever, move the selector lever to P and then release the Shiftlock button.
The engine can only be started when the selector lever is in position P or N
⇒ page 126. At temperatures below -10 °C the engine can only be started in the
selector lever position P.
It is sufficient to engage selector lever position P when parking on a flat surface.
When parking on a slope you should first apply the handbrake firmly and then
move the selector lever into position P. This is to ensure that there is no excessive
pressure acting on the lock mechanism and that it is easier to subsequently move
the selector lever out of position P.
If the selector lever position N is selected by accident while driving it is first neces-
sary to release pressure on the accelerato r pedal and wait for idling speed of the
engine to be reached before engaging a drive position in the selector lever.
WARNING
•Do not depress the accelerator when changing the position of the
selector lever if the car is stationary an d the engine is running - risk of acci-
dent!
•Never move the selector lever into position R or P when driving - risk of
an accident!
•If you are stopping at a hill (downhill section), never try to hold the car
stationary with the gear engaged by me ans of the “accelerator”, this means
by letting the clutch slip. This can lead to overheating of the clutch. If there is
a risk of overheating of the clutch due to overload, the clutch is opened auto-
matically and the vehicle rolls backward - risk of accident!
•If you must stop at a slope, depress and hold the brake pedal, so that you
can prevent the vehicle from rolling back.
Caution
•The double clutch on the automatic gear box DSG is equipped with an overload
protection. If you make use of the uphill function on a vehicle which is stationary or
driving slowly uphill, it will result in an increase of thermal stress of the clutches.
•An overheating of the clutches can be detected by the flashing of the selector
level indicator and the “jerk” of the clut ches, finally the clutches are opened. The
power transmission from the engine to the front wheels is interrupted and as a
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Automatic gearbox
136
result of this the vehicle can no longer be driven. If the clutch opens automatically,
depress the brake pedal, wait a few se conds and only then continue driving.
Selector lever positions
The current selector lever position is in dicated in the information display of the
instrument cluster ⇒fig. 154 . In the positions D and S the gear you have already
engaged will be additionally displayed on the display.
P - Parklock
The driven wheels are locked mechanically in this position.
The Parklock must only be engaged when the vehicle is stationary ⇒. I f y o u w i s h t o m o v e t h e s e l e c t o r l e v e r i n to
or out of this position, you must press the
Shiftlock button in the handle of the selector lever and at the same time depress the
brake pedal.
If the battery is used, the selector leve r cannot be moved out of the position P .
R - Reverse
Reverse gear must only be engaged when the vehicle is stationary and the engine
idling ⇒ .
The brake pedal must be depressed and at the same time the Shiftlock must be
pressed, if you wish to obtain the selector lever positions R, P or N.
When the ignition is switched on and the selector lever is in position R, the reverse
lights will come on.
N - Neutral
The transmission is in Neutral in this position.
The brake pedal must be depressed (if the lever is in its position for longer than 2
seconds) in order to move the selector lever out of the position N into the position
D or R , with the ignition switched on, on a vehicle travelling at less than 5 km/hour
or on a stationary vehicle.
D - Drive, position for driving forward
When the selector lever is in this position, the forward gears are shifted up and
down automatically in line with engine load, vehicle speed and the dynamic shift
programme.
You must depress the brake pedal if you wise to move into position D from N when
the vehicle is travelling at less than 5 km/hour or is stationary ⇒.
In certain circumstances (e.g. when driving in mountainous regions or when towing
a trailer) it may be beneficial to select the manual shift programme ⇒page 138 for
a short time in order to adapt the gearbox ratios manually to the driving situations.
S - Position for sporty style of driving
Shifting up later into a higher gear makes it possible to fully exploit the power
potential of the engine. The gearbox also then shifts down at higher engine speeds
as in the position D.
Fig. 153 Selector lever
Fig. 154 Information
display: Selector lever posi-
tions
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Automatic gearbox137
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
The gearbox does not shift into the 6th gear in the position
S, because the
maximum speed is reached with the 5th gear
12).
The Shiftlock on the selector lever grip must be pressed when moving the selector
lever out of the position D into the position S.
WARNING
•Never move the selector lever into position R or P when driving - risk of
an accident!
•When the engine is running and the vehicle is stationary, it is necessary
to hold the car with the brake pedal in all the positions of the selector lever
(except P and N) since the power transmission is never completely inter-
rupted, also not when the engine is idling - the vehicle "creeps".
•You must on no account unintentionally operate the throttle (e.g. by
hand from the engine compartment) if a drive position is engaged when the
car is stationary. The vehicle would ot herwise immediately start off - also
when the handbrake is firmly applied - risk of an accident!
•You must move the selector lever into position P and firmly apply the
handbrake first before you or any other person opens the bonnet and starts
working on the engine when it is running - risk of accident! It is also essential
to observe all warnings ⇒page 225, “Working in the engine
compartment”.
Selector lever lock
Automatic selector lever lock 
With the ignition on, the selector lever is locked when it is in the positions P and N.
You must first of all depress the brake peda l in order to move the selector lever out
of this position. The warning light
 ⇒ page 38 lights up in the instrument cluster
as a reminder for the driver when the selector lever is in position P and N:
A time delay element ensures that the selector lever is not blocked when rapidly
switching over the position N (e.g. from R to D). This does, for example, allow one to seesaw out a stuck vehicle. The selector
lever lock will click into place if the lever
is in the N position for more than 2 seconds without the brake pedal being pressed.
The selector lever lock is only active if th e vehicle is stationary or moving at speed
of less than 5 km/hour. The lock is switched off automatically into position N when
the car is travelling at a higher speed.
Shiftlock button
The Shiftlock button in the handle of selector lever prevents certain selector lever
positions being engaged inadvertently. The selector lever lock is cancelled when
you press the Shiftlock button.
Keylock - Ignition key withdrawal lock
You can only withdraw the ignition key after switching off the ignition if the selector
lever is in position P. If the ignition key is withdrawn, the selector lever is blocked in
position P.
Kickdown function
The kickdown function provides you with maximum acceleration
power.
Depressing the accelerator pedal allows the kickdown function to be activated in
the desired driving program. This function has precedence over the driving
programme and serves for maximum accelera tion of the vehicle when exploiting
the maximum power potential of the engine without taking into account the
current selector lever position ( D, S or Tiptronic ). The gearbox shifts down to one
or several gears in line with the driving state and the vehicle accelerates. The
gearbox does not shift up into the highes t gear until the engine has reached its
maximum revolutions for this gear range.
WARNING
Please note that using the kickdown f unction can result in the driven wheels
spinning on a smooth or slippery road surface - risk of skidding!
12)Not valid for vehicles with automatic gearbox DSG.
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Intelligent Technology
194
•when driving with snow chains
•when driving in deep snow or on a loose surface
•when it is necessary to rock a ca r free when it has become stuck.
then you should switch on the ESP again.
WARNING
It is also not possible for the ESP to overcome the physical limits of the
vehicle. Even if a vehicle fitted with ESP you should still always adapt your
style of driving to the condition of the road surface and the traffic situation.
This particularly applies when driving on slippery and wet roads. The
increased safety offered must not tempt you to take greater risks than other-
wise - risk of an accident!
Note
•All four wheels must be fitted with the same tyres in order to achieve problem-
free operation of the ESP. 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 assign-
ment of tyres and wheels) can influence the function of the ESP ⇒page 243,
“Accessories, changes and replacement of parts”.
Electronic Differential Lock (EDS)*
The electronic differential lock pr events 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 conditio ns 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 proces s 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 which is being
braked. The vehicle can continue to be driven and has the same characteristics as a
vehicle not fitted with EDL.
The EDL switches on again automatically as soon as the brake has cooled down.
WARNING
•Depress the accelerator carefully when accelerating on uniformly slip-
pery road surfaces, such as ice and snow. The driven wheels might still spin
despite the EDL and affect the stability of the vehicle - risk of an accident!
•You should always adapt your style of driving to the condition of road
surface and to the traffic situation even when your vehicle is fitted with EDL.
The increased safety offered must not tempt you to take greater risks than
otherwise - risk of an accident!
Note
•If the ABS or ESP warning light comes on, this may also indicate a fault in the
EDL. Please have the car inspected as soon as possible by a specialist garage.
•Changes to vehicle (e.g. on engine, on the brakes, on chassis or other assign-
ment of tyres and wheels) can in fluence the function of the EDL ⇒page 243,
“Accessories, changes and replacement of parts”.
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Intelligent Technology195
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Traction control system (TCS)
The traction control system prevents the driven wheels from spinning
when accelerating.
General
The TCS makes it much easier, and sometimes at all possible, to start off, accelerate
and climb a steep hill when the conditio ns of the road surface are unfavourable.
Operating principle
The TCS switches on automatically when th e engine is started and then conducts a
self-test. The system monitors the speeds of the driven wheels with the aid of the
ABS sensors. If the wheels are spinning, the force transmitted to the road surface is
automatically adapted by redu cing the engine speed. This occurs at all speeds.
The TCS operates in combination with the ABS ⇒page 197, “Antilock brake system
(ABS)”. The TCS will not function if a fault exists in the ABS system.
The TCS warning light lights up in the instrument cluster when there is a fault on the
TCS
 ⇒ page 37.
Switching off
You can switch the TCS off and on again as you wish by pressing the button
⇒ fig. 198 . The TCS warning light lights up in the instrument cluster when the TCS is
switched off
 ⇒ page 37. 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 assign-
ment of tyres and wheels) can in fluence the function of the TCS ⇒page 243,
“Accessories, changes and replacement of parts”.
Driver-steering recommendation*
The driver-steering recommendation is an additional function of the electronic
stability programme (ESP). This function indicates to the driver in critical situations
by means of slight steering wheel impulses the direction evaluated by the system,
in which the vehicle must be steered, so that it stabilizes. The driver-steering
recommendation is active when braking shar ply on different road surfaces and on
the right and left vehicle side.
Fig. 198 TCS switch
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Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
vehicle and reduces the strain on the brakes
. Any additional braking should be done
intermittently, no t continuously.
Note
The hazard warning light system is switched on automatically in case of an emer-
gency braking at speeds greater than 60 km /h. The hazard warning light system is
switched off automatically after a ccelerating or driving off again.
Brake booster
The brake booster boosts the pressure which you generate with the brake pedal.
The necessary pressure is only gene rated when the engine is running.
WARNING
•Never switch off the engine before the vehicle is stationary.
•The brake booster only operates when the engine is running. Greater
physical effort for braking is required when engine is switched off. Because
if you do not stop as normal, this can cause an accident and severe injuries.
Antilock brake system (ABS)
ABS prevents the wheels locking when braking.
General
The ABS contributes significan tly to enhancing the active safety of your vehicle.
Compared to a car not fitted with the ABS brake system, you are able to retain
optimal steering ability even during a fu ll brake application on a slippery road
surface because the wheels do not lock up.
You must not expect, however, that the br aking distance will be shorter under all
circumstances as a result of the ABS. Th e braking distance for example on gravel
and fresh snow, when you should anyway be driving slowly and cautiously, will be
longer. Operating principle
The brake pressure will be reduced on a wheel which is rotating at a speed which is
too low for the speed of the vehicle and tend
ing to lock. This control cycle is notice-
able from a pulsating movement of the brake pedal which is accompanied by
noises. This is consciously intended to provide the driver with the information that
the wheels are tending to lock (ABS control range). You must always keep the brake
pedal depressed to enable the ABS to optima lly control the brake application in this
braking range. Never interrupt the application of the brakes!
WARNING
•The ABS can also not overcome the physic al limits of your vehicle. Please
do not forget this, particularly when driv ing on icy or wet road surfaces. If the
ABS is operating within the control ra nge, adapt your speed immediately to
the conditions of the road surface and the traffic situation. The increased
safety offered by the ABS must not tempt you to take greater risks than
otherwise - risk of an accident!
•The normal braking system is still fully functional if there is an ABS fault.
Visit a specialist garage as quickly as po ssible and adjust your style of driving
to take account of the ABS fault in the meantime since you will not know how
great the damage is.
Note
•A warning light comes on if a fault occurs in the ABS system  ⇒ page 38.
•Changes to vehicle (e.g. on engine, on the brakes, on chassis or other assign-
ment of tyres and wheels) can in fluence the function of the ABS ⇒ page 243,
“Accessories, changes and replacement of parts”.
Brake Assist*
During a severe brake application (e.g. if a hazard exists), the Brake Assist increases
the braking force and thus makes it possible to rapidly produce the pressure
required in the brake system.
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Tyre inflation pressure-control system*
The tyre inflation pressure-control system compares with the aid of the ABS sensors
the speed and also the rolling circumference of the individual wheels. If the rolling
circumference of a wheel is changed, the warning light
 lights up in the instru-
ment cluster ⇒page 38 and an audible signal sound s. The rolling circumference of
the tyre can change if:
•the tyre inflation pressure is too low,
•the structure of the tyre is damaged,
•the vehicle is loaded on one side,
•the wheels of an axle are loaded heavily (e.g. when towing a trailer or when
driving uphill or downhill),
•snow chains are mounted,
•the temporary spare wheel is mounted,
•one wheel per axle was changed.
Basic setting of tyre inflation pressure-control system
After changing the tyre inflation pressures or after changing one or several wheels,
a basic setting of the system must be carried out as follows.
•Inflate all tyres to the specified inflation pressure ⇒page 237.
•Switch on the ignition.
•Press button ⇒fig. 199 for more than 2 seconds. While pressing the
button, the warning light  lights up. At the same time the memory of the system
is erased and the new calibration is star ted, which is confirmed with an audible
signal and then the warning light
 goes out.
•If the warning light  does not go out after the basic setting, there is a fault in
the system. Have the vehicle inspected by your nearest specialist garage.
Warning light
 lights up
If the tyre inflation pressure of at least on e wheel is insufficiently inflated in compar-
ison to the stored basic value, the warning light
 ⇒ lights up.
Warning light
 flashes
If the warning light flashes, there is a system fault. Have the vehicle inspected by
your nearest specialist garage.
WARNING
•When the warning light  lights up, immediately reduce the speed and
avoid sudden steering and brake mano euvres. Please stop the vehicle
without delay at the nearest possible stop and inspect the tyres and their
inflation pressures.
•The driver is responsible for the correct tyre inflation pressures. For this
reason, the tyre inflation pressures must be checked regularly.
•Under certain circumstances (e.g. sporty style of driving, wintry or
unpaved roads) the warning light  can be delayed or does not light up at
all.
•The tyre inflation pressure-control system does not take away the
responsability from the driver for the correct tyre inflation pressure.
Note
The tyre inflation pressure-control system:
•does not replace the regular tyre inflatio n pressure control, because the system
cannot detect an even pressure loss,
Fig. 199 Button for setting
the tyre inflation pressure
control value
 
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Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
should be attached to folding arms. Adjust
the mirrors so that they provide you with
an adequate field of view to the rear.
Headlights
Before starting off with a hitched trailer, also check the setting of the headlights.
Alter the setting as necessary with th e aid of the headlight beam adjuster
⇒ page 64.
Detachable ball head
The ball rod is detachable on vehicles which feature a factory-fitted towing device.
It is stowed together with separate fitting instructions in the spare wheel well in the
luggage compartment of the vehicle.
Further information on the towing device ⇒page 210.
Note
•We recommend that you also have your vehicle inspected between service
intervals if you tow a trailer frequently.
•The handbrake on the towing vehicle must be put on when coupling and
decoupling the trailer.
Driving Tips
Particular caution is required when towing a trailer.
– Do not, as far as possible, drive with your vehicle unladen and the
trailer laden.
– Do not make full use of the legal maximum speeds. This applies in particular to downhill sections.
– Apply the brakes in good time.
– Keep a check on the coolant temperature gauge if the outside temper- ature is high.
Distribution of weight
The distribution of the weight is very poor if your vehicle is unladen and the trailer
is laden. Maintain a particularly low speed if you cannot avoid driving with this
combination.
Driving speed
Do not drive faster than 80 km/hour for safety reasons. This also applies for coun-
tries in which higher speeds are allowed.
The fact that the driving stability of the vehicle + trailer combination reduces with
increasing speed means that the legally allowed speed should not be used when
there are unfavourable road, weather or wind conditions, particularly near accident
black spots.
You must always reduce your speed immedi ately as soon as you detect even just
the slightest swaying of the trailer. On no account attempt to stop the trailer from
“swaying” by accelerating.
Apply the brakes in good time! If the trailer is fitted with a trailer brake, apply the
brakes gently at first and then brake firmly . This will avoid brake jolts resulting from
the trailer wheels locking. Shift down gears in good time before negotiating a down-
hill section to allow the engine to also act as a brake.
Engine overheating
Please keep a check on the coolant temperature gauge if you have to negotiate a
lengthy slope in a low gear at a high engine speed when the outside temperature is
very high ⇒page 18, “Coolant temperature gauge”.
If the needle of the coolant temperature gauge moves into the right-hand area or
even the red area of the scale, reduce yo ur speed immediately. Stop and switch off
the engine if the warning light
 in the instrument cluste r begins flashing. Wait a
few minutes and check the level of coolant in the coolant expansion bottle
⇒ page 229, “Inspecting the coolant level”.
Please refer to the following guidelines ⇒page 37, “Coolant temperature/ Coolant
quantity ”.
The coolant temperature can be reduced by switching on the heating.
Any increase in the cooling effect of the coolant fan through shifting down a gear
and increasing the engine speed is not possible since the fan speed is independent
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