outside temperature VOLKSWAGEN T-ROC 2021 Owner´s Manual

If the air distribution regulator of the manual air conditioning system is turned to position.

WARNING
Stale air can quickly make the driver tired and affect their concentration, which in turn can cause
collisions, accidents and serious injuries.
Never use the air recirculation mode for an extended period as no fresh air will enter the vehicle
interior.
If the cooling system is switched off, condensation can form on the windows very quickly in air
recirculation mode and reduce visibility considerably.
Switch off the air recirculation mode when it is no longer required.

NOTICE
In vehicles with an air conditioning system, do not smoke when the air recirculation mode is
switched on. The smoke can leave a residue on the cooling system evaporator and the dust and
pollen filter with pollution filter insert, producing a lasting unpleasant odour.

When reversing the vehicle, or when the wash and wipe system is being used, the air recirculation
mode will switch on to prevent odours from entering the vehicle interior.
Climatronic

If the outside temperature is very high, the manual air recirculation mode can be activated for a
short time to help cool the vehicle interior more quickly.
Seat heating
First read and observe the introductoryinformation and safety warnings⇒Introduction 
The seat cushions and backrests can be heated electrically when the engine is running.
Operating the seat heating
Press the or button in the air conditioning block in order to switch the seat heating to the
highest temperature setting.
Press the or button repeatedly until the desired setting is reached.
To switch the seat heating off, press the or button repeatedly until no LEDs are lit.

If the ignition is turned on again within approximately 10 minutes, the most recent driver seat
temperature setting is automatically activated.
When should I not switch on the seat heating?
Do not switch on the seat heating if one of the following conditions applies:
The seat is not occupied.
The seat is fitted with a protective cover.
A child seat is installed on the seat.
The seat cushion is damp or wet.
The temperature in the vehicle interior or the outside temperature is above +25°C (77°F).

WARNING
Anyone with reduced sensitivity to pain or temperature due to medication, paralysis or chronic
illness (e.g. diabetes) could sustain burns on the back, buttocks and legs when using the seat
heating. These burns may take a long time to heal or may never heal fully. Please consult a doctor if
you have questions about your own state of health.
Anyone with reduced sensitivity to pain or temperature should never use the seat heating.

WARNING
Wet upholstery can cause a fault in the seat heating and increase the risk of burns.
Ensure that the seat cushion is dry before using the seat heating.
Do not sit on the seat in damp or wet clothing.
Do not place any damp or wet objects or items of clothing on the seat.
Do not spill any liquids on the seat.

NOTICE
To avoid damaging the heating elements, do not kneel on the seats or apply sharp pressure at a
single point to the seat cushion and backrest.
Liquids, sharp objects and insulating materials, such as a protective cover or child seat, may damage
the seat heating.
If the system starts to produce an odour, switch off the seat heating immediately and have it
checked by a qualified workshop.

The cooling system cannot be switched on or its function is restricted
The cooling system functions only when the engine is running and at ambient temperatures above
+3°C (+38°F).
The cooling system is switched off when the engine is very warm.
Switch on the blower.
Check the fuse of the air conditioning system ⇒ Fuses in the dash panel .
Change the dust and pollen filter ⇒ Service .
If the fault persists, seek expert assistance.
The heating and fresh air system cannot be switched on or its function is restricted
The heating and defrost function are more effective when the engine is warm.
If the fault persists, seek expert assistance.
Condensation on the windows
Keep the air intake in front of the windscreen free of ice, snow or leaves in order to improve heating
and cooling performance ⇒ Vehicle care .
Do not cover the air vents in the rear of the luggage compartment to allow air to flow through the
vehicle from the front to the rear.
Press the button or turn the rotary knob to position in order to switch on the defrost
function ⇒ .
The wrong unit of temperature is set
Change the unit of temperature for all temperature displays in the vehicle using the Infotainment
system ⇒ Infotainment system controls and displays .
Change the unit of temperature in the instrument cluster menu ⇒ Instrument cluster .
Water under the vehicle
If the humidity and temperature outside the vehicle are high, condensation can drip off the
evaporator of the cooling system and form a pool underneath the vehicle. This is normal and does
not indicate a leak!
If the outside humidity is high and the outside temperature low, condensation may evaporate when
the auxiliary heater is running ⇒ Auxiliary heater and ventilation . If this is the case, steam may
appear underneath the vehicle. This is not a sign that the vehicle is damaged.

WARNING
Poor visibility through all windows increases the risk of collisions and accidents, which can cause
serious injuries.

Operating noises can be heard if the auxiliary heater is switched on.

The 12-volt vehicle battery will discharge if the auxiliary heating or ventilation is run several times
over an extended period. Drive the vehicle for an appropriate distance in between in order to
recharge the 12-volt vehicle battery.

The fuel gauge indication may not be accurate (just above the reserve quantity) when the vehicle is
parked on a slope; this may restrict the function of the auxiliary heater.

The auxiliary heater may switch on automatically when the engine is started at temperatures below
+5°C (+41°F) in order to provide additional hea ng power. The supplementary heating function will
switch off again automatically after a short time.
Programming the auxiliary heater and ventilation
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Opening the Auxiliary heater menu
The auxiliary heater is programmed in the Infotainment system.
Manual air conditioning system
Press the button on the Infotainment system.
Touch the Vehicle and function buttons.
Climatronic
Open the air conditioning settings in the Infotainment system.
Touch the function button.
Changing operating mode
Open the Auxiliary heater menu.
Press the Heating or Ventilation function buttons to change mode.
At high outside temperatures, the auxiliary ventilation system directs fresh air into the vehicle and
prevents the accumulation of heat.
Programming the auxiliary heater
Activation is always for one heating or ventilation operation only. The departure time must be
activated again for every start.

Before programming, check that the date and time set in the vehicle are correct ⇒ Time .
Open the Auxiliary heater menu.
Touch the Set function button.
Select one of the memory locations for a Departure time.
Touch the Activate function button.
Manual air conditioning system: the programmed departure time determines the time at which
the auxiliary heater or ventilation should switch off. The point at which the heating or ventilation
process starts is determined depending on the programmed running time.
Climatronic: on the basis of the programmed departure time, the vehicle automatically
calculates the start time for heating or ventilation to the currently set temperature depending on
the outside temperature.
Press the Running time function button under Adjust in order to select the running time when the
auxiliary heater is switched on using the immediate heat button or remote control.
Checking programming
If a departure time has been activated, the LED in the immediate heat button will light up on the
Climatronic control panel for approximately 10 seconds after the ignition is switched off.

WARNING
Never program the auxiliary heating system so that is switched on and run in unventilated or
enclosed spaces. Among other things, the emissions from the auxiliary heater contain carbon
monoxide, which is an odourless and colourless poisonous gas. Carbon monoxide can cause people
to lose consciousness. It can also cause death.
Remote control

Fig. 93 Auxiliary heater: remote control (left) with battery compartment (right).
First read and observe the introductoryinformation and safety warnings⇒Introduction 

The alternator is driven by the engine and generates electrical power for convenience consumers
such as the air conditioning system, windscreen heating and ventilation. Saving electrical energy is
easy, e.g.:
Open the windows and doors before driving at high outside temperatures and drive for a short
distance with a window open. Only then switch the air conditioning system on.
Switch the convenience consumers off as soon as they have served their purpose.

WARNING
Adapt your speed and distance from the vehicles ahead to suit visibility, weather, road and traffic
conditions.

Inform yourself about other ways of protecting the environment. Think Blue. is the global
Volkswagen trademark for sustainability and environmental compatibility.

Your Volkswagen dealership can provide you with further information on maintenance and energy-
efficient replacement parts, e.g. new tyres.
Think Blue. Trainer.
The Think Blue. Trainer analyses and visualises your driving style and helps you to drive more
economically.

Fig. 98 In the Infotainment system: Think Blue. Trainer.
Key to ⇒ Fig. 98 :

Blue Score:
The higher the displayed value on a scale from 0 to 100, the more efficient your driving style. A blue
border symbolises an efficient and constant driving style. A grey border indicates an inefficient
driving style.

Components with a high power consumption are switched off temporarily when the engine is
started.

The engine cannot be started with the starter button, for example, if the button cell in the vehicle
key is weak or flat. In this case, use the emergency start function ⇒ No valid vehicle key recognised .

When starting from cold, the engine may be a little noisy for the first few seconds. This is quite
normal, and no cause for concern.

At outside temperatures of less than +5°C (+41°F), fumes may be detected under a vehicle with a
diesel engine if the fuel-powered supplementary heater is switched on.
Switching off the engine
Bring the vehicle to a standstill ⇒ .
Park the vehicle ⇒ Parking .
Vehicles with ignition lock: turn the vehicle key to position ⇒ Fig. 99⓪  in the ignition lock.
Vehicles with a starter button: press the starter button briefly ⇒ Fig. 100 . If the engine cannot
be switched off, carry out the emergency switch-off procedure ⇒ Engine cannot be switched off .
Follow the instructions in the instrument cluster ⇒ Instrument cluster .
Ignition warning
In order to indicate an active ignition when leaving the vehicle, an acoustic warning signal sounds
when opening the driver door and corresponding warning messages appear on the display of the
instrument cluster.
Warning before leaving the vehicle
Vehicles with DSG dual clutch gearbox: if the selector lever is not in position P, an acoustic
warning signal will sound when the driver door is opened and the warning message Please move
selector lever to position P. will be shown on the instrument cluster display. In this way, a warning is
given that the vehicle could potentially roll away. When you leave the vehicle, the electronic parking
brake also switches on to prevent the vehicle rolling away.

WARNING
Never switch off the engine while the vehicle is in motion. This can lead to a loss of vehicle control,
accidents and serious injuries.

If the start/stop system is used in very high outside temperatures over a long period, the 12-volt
vehicle battery can be damaged.

The engine stop function may be deactivated automatically if the temperature is above around 38°C
(100°F).

In some cases, it may be necessary to restart the engine manually. Follow any corresponding
messages on the instrument cluster display.

The start/stop function is activated automatically if the Eco driving profile is selected on vehicles
with driving profile selection ⇒ Driving profile selection and 4MOTION Active Control .

Always deactivate the start/stop system manually when driving through water.
Troubleshooting
Engine no longer starts automatically
Vehicles with DSG dual clutch gearbox and coasting function: if the engine does not start
automatically, the warning Error: vehicle power system. Please visit workshop can be displayed in
the instrument cluster.
Start the engine manually ⇒ Starting the engine .
Deactivate the start/stop system manually.
Go to a qualified workshop immediately.
Manual gearbox: selecting a gear

Fig. 103 Gear shift pattern of a 5-speed manual gearbox.

pecified on the pump meets the vehicle's
requirements.
-approved service additives in the approved quantity.
emergency, you have to use petrol with an octane number lower than the recommended number,
drive at medium engine speeds and avoid high engine loading. Avoid high engine speeds and heavy
engine loads. Refuel with petrol with the correct octane number as soon as possible.
Diesel
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Fill vehicles with a diesel engine only with diesel or diesel with a maximum RME fuel content of 7 %
⇒ .
If you use diesel with a high sulphur content, the service intervals are shorter. Information on
countries where the diesel has a high sulphur content is available from your Volkswagen dealership
or a qualified workshop.
The fuel quality affects the running properties, performance and service life of the engine. Refuel
with fuel that already contains suitable service additives ⇒ .
Information on the fuel standards can be found in the chapter on fuel standards ⇒ Fuel standards .
Winter-grade diesel fuel and filter preheater system
Winter-grade diesel fuel, which can be used at temperatures below -20°C (-4°F), is available during
the cold months. In countries with different climates, diesel with a different temperature behaviour
is offered. Information is available from your Volkswagen dealership, qualified workshops and filling
stations in the respective country.
Diesel vehicles are equipped with a filter preheater system. When using winter-grade diesel fuel, the
fuel system is safe for operation at temperatures down to around -24°C (-11°F). In order to ensure
that the vehicle can also be started at low outside temperatures, Volkswagen recommends parking
the vehicle in a location that is protected from the whether, e.g. in a garage ⇒ Troubleshooting .
Misfuelling prevention device
The tank filler neck in diesel vehicles may be fitted with a misfuelling prevention device. This is
intended to help ensure that the vehicle is refuelled only using diesel filler nozzles.
If the nozzle cannot be inserted correctly into the tank filler neck, first check whether you are using a
diesel filler nozzle. When you have made sure that you are using the correct filler nozzle, move the
diesel filler nozzle to and fro slightly with light pressure. This can open the misfuelling prevention
device and make it possible to refuel the vehicle. If the misfuelling prevention device still remains
closed, go to a qualified workshop and have the system checked.
If it is necessary to refuel the vehicle using a fuel canister in the event of an emergency, the
misfuelling prevention device will not open. In order to nevertheless fill the tank with fuel, pour the
diesel into the tank extremely slowly in very small quantities.