
The auxiliary heating (parking heating) warms up the coolant by combusting fuel
from the vehicle tank. The coolant warms up the air, which (if the blower speed is
not set to zero) flows into the passenger compartment.
Auxiliary ventilation
The auxiliary ventilation enables fresh air to flow into the vehicle interior by
switching off the engine, whereby the interior temperature is effectively de-
creased (e.g. with the vehicle parked in the sun).
WARNING
■ The auxiliary heating must never be operated in closed rooms - risk of poi-
soning! ■ The auxiliary heating must not be running during refuelling - risk of fire.
■ The exhaust pipe of the auxiliary heating is located on the underside of the
vehicle. Therefore, if you wish to operate the auxiliary heating, do not park the
vehicle in such a way that the exhaust gases from the auxiliary heating can
come into contact with highly flammable materials (e.g. dry grass) or easily in-
flammable substances (e.g. spilt fuel). Note
■ If the auxiliary heating runs, the fuel consumption comes from the vehicle tank.
The auxiliary heating automatically controls the filling level in the fuel tank. If only
a low quantity of fuel is present in the fuel tank, the function of the auxiliary
heating is blocked. ■ The exhaust pipe of the auxiliary heating, which is located on the underside of
the vehicle, must not be clogged and the exhaust flow must not be blocked.
■ If the auxiliary heating and ventilation is running, the vehicle battery discharges.
If the auxiliary heating and ventilation has been operated several times over a
longer period, the vehicle must be driven a few kilometres in order to recharge
the vehicle battery.
■ The auxiliary heating only switches the blower on, if it has achieved a coolant
temperature of approx. 50 °C.
■ At low outside temperatures, this can result in a formation of water vapour in
the area of the engine compartment. This is quite normal and is not an operating
problem.
■ After switching off the auxiliary heating, the coolant pump runs for a short peri-
od.
■ The auxiliary heating and ventilation does not switch on or comes on, if the ve-
hicle battery indicates a low loading state » page 169, Automatic load deactiva-
tion . ■
The auxiliary heating (parking heating) does not switch on, if the following was
shown in the information display or before switching off the ignition: Please re-
fuel! ■ The air inlet in front of the windscreen must be free of ice, snow or leaves in
order to ensure that the auxiliary heating operates properly.
■ So that warm air can flow into the vehicle interior after switching on the auxili-
ary heating, you must maintain the comfort temperature normally selected by
you, leave the fan switched on and leave the air outlet vents in an open position.
It is recommended to put the air flow in the position or .Ð Direct switching on/off
Fig. 91
Button for direct switching on/
off of the auxiliary heating (aux-
iliary heating and ventilation) on
the operating part of the air con-
ditioning system
First read and observe the introductory information and safety warn-
ings on page 87.
The auxiliary heating (auxiliary heating and ventilation) can be
directly switched
on or off at any time using the button » Fig. 91 on the operating part of the air-
conditioning system, on the operating part of the Climatronic system or via the ra-
dio remote control » page 89.
If the auxiliary heating and ventilation is not switched off earlier, it switches off
automatically after the set operating period, in the menu Running time has ex-
pired. Ð
ä
88 Using the system

System settings
First read and observe the introductory information and safety warn-
ings on page 87.
The following menu items can be selected in the menu
Aux. heating in the infor-
mation display (depending on the equipment fitted in the vehicle):
■ Day of the wk. - Set the current weekday.
■ Time- Set the desired running time in 5
minute increments. The running time
can be 10 to 60 minutes.
■ Mode - Set the desired heating/ventilation mode.
■ Starting time 1-3 - In each pre-set time, the day and the time (hour and minute)
can be set for switching on the auxiliary heating and/or ventilation. An empty
position can be found between Sunday and Monday when selecting the day. If
this empty position is selected, the activation is performed without taking into
account the day.
■ Activate - Enable pre-set mode.
■ Dectivate - Disable pre-set mode.
■ Factory setting - Restore factory setting.
■ Back - Return to main menu.
Only one programmed pre-set time can be active.
The last programmed pre-set time remains active.
After the auxiliary heating activates at the set time, it is necessary to pre-set a
time again.
If the pre-set menu is closed by selecting the menu item Back or if no changes
are made on the display for more than 10 seconds, the set values are stored, but
the pre-set time is not activated.
An warning light on the button »
Fig. 91
on page 88 is illuminated when the
system is running.
The running system deactivates after expiration of the operating period or can be
deactivated earlier by pressing the button to directly switch on/off the auxiliary
heating » Fig. 91 on page 88
or by using the radio remote control. Ð
ä Radio remote control
Fig. 92
Auxiliary heating: Radio remote control
First read and observe the introductory information and safety warn-
ings on page 87.
›
For switching on, press the button
ON » Fig. 92.
› For switching off, press the button
OFF .
The transmitter and the battery are housed in the housing of the remote control.
The receiver is located in the interior of the vehicle.
If the battery is properly charged, the effective range is up to 600
m. To switch
on/off the auxiliary heating, hold the radio remote control vertically with the an-
tenna A
» Fig. 92 facing upwards. The antenna must not be covered with the fin-
gers or the palm of the hand during this process. Obstacles between the radio re-
mote control and the vehicle, bad weather conditions and a weaker battery can
clearly reduce the range.
The auxiliary heating can only be switched on/off safely using the radio remote
control, if the distance between the radio remote control and the vehicle is at
least 2
m.
Warning light in the radio remote control
The warning light in the radio remote control C
» Fig. 92 indicates after a key-
stroke if the remote control signal was received by the auxiliary heating and if the
battery is adequately charged.
Display warning light Importance
Lights up green for 2 seconds. The auxiliary heating was switched on.
Lights up red for 2 seconds. The auxiliary heating was switched off.
Slowly flashes green for 2 seconds. The ignition signal was not received. £ ä
89
Heating and air conditioning system

Display warning light
Importance
Quickly flashes green for 2 seconds. The auxiliary heating is blocked, e. g
because the tank is nearly empty or
there is a fault in the auxiliary heating.
Flashes red for 2 seconds. The switch off signal was not received.
Lights up orange for 2 seconds, then
green or red. The battery is weak, however the
switching on or off signal was received.
Lights up orange for 2 seconds, then
flashes green or red. The battery is weak, however the
switching on or off signal was not re-
ceived.
Flashes orange for 5 seconds. The battery is discharged, however the
switching on or off signal was not re-
ceived.CAUTION
The radio remote control comprises electronic components and must therefore be
protected against water, severe impacts and direct sunlight. ÐChanging the battery of the radio remote control
First read and observe the introductory information and safety warn-
ings on page 87.
If the warning light on the radio remote control indicates a weak or discharged
battery, C
» Fig. 92 on page 89
, it must be replaced. The battery is located under
a cover B
» Fig. 92
on page 89 on the back of the radio remote control.
› Insert a flat, blunt object, such as a coin, into the gap on the battery cover, turn
the cover in the opposite direction of the arrow up to the mark and unlock it.
› Change the battery, replace the battery cover and lock it by moving it in the di-
rection of the arrow. For the sake of the environment
Dispose of the old battery in accordance with environmental regulations. Note
■ Pay attention to the correct polarity when changing the battery.
■ The replacement battery must have the same specification as the original bat-
tery. Ð
ä
90
Using the system

Button Action
Radio, traffic information CD/CD changer/MP3 Navigation3
Press briefly
Changing to the previously stored radio station
Changing to the previously stored traffic information Interrupting the traffic report Changing to the previous title3 Press button for a
long period of time Interruption of the traffic report
Fast rewind4
Press briefly
changing the audio source5
Press briefly
Call up the main menu6
Press briefly
Interruption of the traffic report without function6
Turn upwards
Display of the stored/accessible stations
Scroll upwards
Interruption of the traffic report Changing to the previous title
without
function 6
Turn downwards
Display of the stored/accessible stations
Scroll downwards
Interruption of the traffic report Changing to the next titlea)
Only valid for the navigation system Columbus. Note
■ The loudspeakers in the vehicle are adjusted to the power output of the radio
and navigation system of 4x20°W. ■ The sound system equipment comprises loudspeakers that are adjusted to the
amplifier power output of 4x50°W + 6x25 W. ÐAUX-IN and MDI inputs
The AUX-IN input is located below the front armrest and is marked with .
The input MDI is located in the storage compartment on the front passenger side.
The AUX-IN and MDI inputs are used to connect external audio sources (e.g. iPod
or mp3 player) and to play back music from these devices via the factory-fitted ra-
dio or navigation system.
For a description of use, refer to the operating instructions for the relevant radio
or navigation system. Ð CD change
Fig. 109
The CD changer
The CD changer for the radio and navigation system is located in the left side
compartment of the boot.
Inserting the CD
› Touch the button C
» Fig. 109
and guide the CD (compact disc) into the CD-
case B
. The CD is automatically loaded onto the lowest free position in the CD
changer. The warning light in the corresponding button D
stops flashing.
£
119
Communication

Inspecting and replenishing
Fuel
ä
Introduction
This chapter contains information on the following subjects:
Refuelling 155
Unleaded petrol 156
Ethanol E85 157
Diesel fuel 158
The correct type of fuel for your vehicle and the tyre size and inflation pressure
are specified on the inside of the fuel filler flap » Fig. 129 on page 155 - . WARNING
The national legal requirements must be observed if carrying a spare canister
in the vehicle. We do not recommend carrying any fuel canisters in your vehi-
cle for safety reasons. In the event of an accident, the canister might be dam-
aged and fuel may leak out - risk of fire! CAUTION
■ Never drive until the fuel tank is completely empty! The irregular supply of fuel
can cause misfiring, which can result in considerable damage to parts of the en-
gine and exhaust system. ■ Immediately remove any fuel that has spilled onto the vehicle's paintwork - risk
of paint damage! Ð Refuelling
Fig. 129
Right rear side of the vehicle: Open fuel filler flap/fuel filler flap
with cap unscrewed
First read and observe the introductory information and safety warn-
ings on page 155.
The filler flap is automatically unlocked or locked with the central locking.
Open fuel filler flap
›
Press in the middle of the left area of the fuel filler flap
» Fig. 129 - .
› Unscrew the filler cap by turning it to the left and place the cap onto the top of
the fuel filler flap » Fig. 129 - .
Closing the filler cap
› Turn the filler cap to the right until it clicks into place.
› Close the fuel filler flap until it clicks into place.
Check that the fuel filler flap is closed properly. CAUTION
■ Before refuelling it is necessary to switch off the auxiliary heating system (aux-
iliary heating and ventilation).
■ The fuel tank is full just as soon as the pump nozzle switches off for the first
time, provided the nozzle has been operated properly. Do not continue filling the
fuel tank otherwise the expansion volume is filled up. £
ä
155
Inspecting and replenishing

Changing engine oil
First read and observe the introductory information and safety warn-
ings on page 158.
The engine oil must be changed at the intervals stated in the Service schedule or
according to the service interval indicator
» page 10, Service Interval Display.CAUTION
Additives must not be added to the engine oil - risk of causing considerable dam-
age to parts of the engine! Damage, which results from such product, are exclu-
ded from the warranty. Note
If your skin has come into contact with oil, it must be washed thoroughly. ÐCoolant
First read and observe the introductory information and safety warn-
ings on page 158.
The cooling system is filled with a coolant in the factory.
The coolant consists of water with a concentration of coolant additive of 40 %.
This mixture provides antifreeze protection down to -25
°C and also protects the
cooling and heating system from corrosion. It also prevents the formation of scale
and significantly increases the boiling point of the coolant.
The concentration of coolant must therefore not be reduced by adding water dur-
ing the summer months or in countries with a warm climate. The concentration of
coolant additive in the coolant must be at least 40 %. 40 %.
If a higher concentration of antifreeze is required for climatic reasons, the amount
of coolant additive can only be increased up to 60 % (antifreeze protection down
to approx. -40 °C). The antifreeze protection tails off above that concentration.
Vehicles exported to countries with a cold climate are already factory-filled with a
coolant which offers antifreeze protection down to about -35 °C. In these coun-
tries the concentration of coolant additive should be at least 50 %.
When refilling, we only recommend you use the same antifreeze written on the
antifreeze expansion tank » Fig. 135 on page 163.
ä
ä
Coolant capacity
Petrol engines Capacities (in litres)
1.2 ltr./77 kW TSI 7.7
1.4 l/59 kW 7.1
1.4 ltr./90 kW TSI 7.7
1.6 l/75 kW 7.4
1.8 ltr./112 kW TSI 8.6
1.8 ltr./118 kW TSI 8.6
2.0 ltr./147 kW TSI 8.6 Diesel engines
Capacities (in litres)
1.6 ltr./77 kW TDI CR 8.4
1.9 l/77 kW TDI PD 8.4
1.9 ltr./77 kW TD PD DPF 8.4
2.0 ltr./81 kW TDI CR 8.4
2.0 ltr/103 kW TDI CR DPF 8.4
2.0 ltr./125 kW TDI CR 8.4 CAUTION
■ Other coolant additives that do not comply with the correct specifications can
above all significantly reduce the anticorrosion effect.
■ Any faults resulting from corrosion may cause a loss of coolant and can conse-
quently result in major engine damage! Note
On vehicles that are fitted with an auxiliary heater (auxiliary heating and ventila-
tion), the coolant capacity is approx. 1 l larger. Ð
162 General Maintenance

Fuses in the dash panel
Fig. 158
Fuse box cover in the dash panel/schematic diagram of the fuse
box
First read and observe the introductory information and safety warn-
ings on page 189.
The fuses are located on the left side of the dash panel behind a cover.
›
Remove the cover for the fuse box using a screwdriver
» Fig. 158.
› Replace the cover once the fuse has been changed.
Fuse assignment in the dash panel No. Power consumer
1 Diagnostic socket, engine control unit, fuel pump
2 Control unit for ABS, ESC
3 Airbag
4 Heating, Air conditioning system, Reversing lights 5 Control unit for headlamp beam adjustment
6 Instrument cluster, control unit for automatic gearbox, control unit for
electromechanical power steering, parking aid
7-11 Not assigned 12 Central locking control unit
13 Diagnostic socket, Light switch
14 Control unit for automatic gearbox, Selector lever lock 15 Vehicle voltage control unit - interior lights
16 Climatronic ä
No. Power consumer
17 Not assigned
18 Rear window wiper 19 Control unit for trailer detection
20 Not assigned 21 Cornering lights for the left and right side
22 Air blower for Climatronic
23 Front power window
24 Cigarette lighter 25 Rear window heater, auxiliary heating and ventilation
26 Power socket in the boot 27 Fuel pump, Injection valves (diesel engine)
28 Radio 29 Engine control unit, Crankcase ventilation heater
30 Control unit for automatic gearbox, Haldex 31 Vacuum pump
32 Rear power window
33 Electric sliding/tilting roof
34 Control unit for convenience functions 35 Alarm
36 Headlight cleaning system 37 Heated front seats
38 Heated rear seats 39 Instrument cluster, windscreen wiper lever, and turn signal lever
40 Air blower for heating and air conditioning
41-42 Not assigned
43-45 Towing device 46 Seat heaters47 Auxiliary heating and ventilation
48 Phone 49 Light switch Ð
190 Do-it-yourself

Fuses in the engine compartment
Fig. 159
Fuse box cover in engine compartment/Schematic diagram of the
fuse box
First read and observe the introductory information and safety warn-
ings on page 189.
On some vehicles, the battery cover must be removed before removing the cover
for the fuse box
» page 167.
› The cover for the fuse box is removed by pushing the circlips A
» Fig. 159
up-
wards as far as the stop. The symbol is displayed behind the clip. Now remove
the cover.
› Once the fuse has been removed, place the cover on the fuse box and push the
circlips A
back as far as the stop. The symbol
is displayed behind the clip. The
cover is locked into position.
Fuse assignment in engine compartment No. Power consumer
F1 Not assigned
F2 Control unit for automatic gearbox
F3 Measuring circuit
F4 Valves for ABS F5 Control unit for automatic gearbox
F6 Instrument cluster, windscreen wiper lever, and turn signal lever F7 Power supply terminal 15, Starter
F8 Radio F9 Not assigned ä
No. Power consumer
F10 Engine control unit F11 Auxiliary heating and ventilation control unit
F12 Data bus control unit
F13 Engine control unit
F14 Ignition F15 Lambda probe, glow plug system
F16 Vehicle voltage control unit, right headlight, right tail light F17 Horn
F18 Amplifier for the digital sound processor F19 Windscreen wipers
F20 Coolant pump, valve for fuel dosing F21 Lambda probe
F22 Clutch pedal switch, brake pedal switch
F23 Secondary air pump, air mass meter, fuel high pressure pump
F24 Active charcoal filter, exhaust gas recirculation valve, radiator fan F25 Pump for ABS
F26 Vehicle voltage control unit, left headlight, left tail light F27 Secondary air pump, glow plug system
F28 Not assigned F29 Power supply terminal 30
F30 Terminal X a) a)
In order not to drain the battery unnecessarily when starting the engine, the electrical components
of this terminal are automatically switched off. Ð Bulbs
ä
Introduction
This chapter contains information on the following subjects:
Headlights 192
Changing the bulb for the front turn signal light 193
Changing light bulbs for front parking lights and low beam 193
Changing the bulb for the main beam 194
£
191
Fuses and light bulbs