2021 VOLKSWAGEN T-ROC running

Fig. 156 Pin assignment for the trailer socket (illustration).
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Pin assignment for the trailer socket ⇒ Fig. 156 :
Left turn signal
Rear fog light
Earth for pins 1, 2, 4, 5, 6, 7, 8
Right turn signal
Tail light, right
Brake light
Tail light, left
Reversing light
Permanent positive
Permanent positive
Earth for pin 10
Not assigned
Earth for pin 9
Trailer socket
A 13-pin trailer socket produces the electrical connection between the towing vehicle and the trailer.
When the vehicle electrically detects a trailer, the consumers in the trailer are supplied with an
electrical voltage via the electrical connection (pins 9 and 10). Pin 9 is assigned as the permanent
positive, enabling operation of the trailer interior lighting, for example.
Electrical consumers such as a caravan refrigerator are supplied with power only when the engine is
running (pin 10).
To avoid overloading the electrical system, do not connect the earth wires (pins 3, 11 and 13) with
each other.
If the trailer has a 7-pin plug you will need to use a suitable adapter cable. The function of pin 10 is
then not available.

Information on warning and indicator lamps that light up can be found in the section
Troubleshooting ⇒ Troubleshooting .
Fuel standards
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Petrol
EN 228
DIN 51626-1
Diesel
EN 590
EN 590
Where fuel complying with the specified standard is not available, your Volkswagen dealership or a
qualified workshop will have information on which available fuels are suitable for the vehicle.

NOTICE
Using fuel that does not comply with these standards may reduce performance and cause damage to
the engine and fuel system.

and engine failure.
Petrol
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Fill vehicles with a petrol engine only with unleaded petrol or petrol with a maximum ethanol
content of 10 % (E10) ⇒ .
Fuel grades differ according to the octane number. The vehicle may be filled with petrol that has a
higher octane number than the engine requires. However, this does not provide any advantage in
terms of fuel consumption or engine output.
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 .

NOTICE
Errors during refuelling or unsuitable fuel additives may cause damage to the vehicle.

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.

First read and observe the introductoryinformation and safety warnings⇒Introduction 
⇒ Petrol .
⇒ Refuelling .
⇒ Checking the engine oil level and refilling the engine oil .
⇒ Jump starting the vehicle .
If you notice misfiring, loss of power or uneven running when driving, reduce speed immediately and
have the vehicle checked by a qualified workshop ⇒ Troubleshooting . Otherwise unburnt fuel can
enter the exhaust system and escape into the atmosphere. The catalytic converter can also be
damaged by overheating.

The emissions may have a sulphur-like smell even when the exhaust purification system is working
properly.
Particulate filter
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Function
⇒ Fuel standards .
⇒ Refuelling .
⇒ Engine oil standards .
⇒ Jump starting the vehicle .
Periodic regeneration
The soot in the particulate filter is burnt off at high temperatures on a periodic basis.
To assist the regeneration of the particulate filter, Volkswagen recommends that you avoid making
only short journeys.
Noises, slight smells and increased engine speeds may occur during regeneration. The radiator fan
may run on while the vehicle is moving or when the engine has been switched off.

During the periodic regeneration process, the yellow indicator lamp does not light up.
Troubleshooting
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Irregular engine running and faults

Suitable earth connection: preferably the jump lead connection point (earth connection), a
solid metal part which is securely bolted onto the cylinder block, or the cylinder block itself.
The discharged 12-volt vehicle battery must be properly connected to the vehicle's electrical system.
The vehicles must not touch. Otherwise electricity could flow as soon as the positive terminals are
connected.
Ensure that the battery clamps have good metal-to-metal contact with the battery terminals.
If the engine does not start immediately, switch off the starter after about 10 seconds and try again
after about a minute.
If the engine still does not start, seek expert assistance.
Attaching the jump leads
The jump leads should be connected only in the order A – B – C – D⇒ Fig. 177 .
The black jump lead should never be connected to the negative terminal (–) on the 12-volt vehicle
battery. Connecting the lead to the negative terminal can cause incorrect condition evaluation of the
12-volt vehicle battery in the vehicle electronics.
⇒ Starting the engine .
-volt vehicle battery in the engine compartment, if a cover is installed
⇒ 12-volt vehicle battery .
discharged 12-volt vehicle battery ⇒ Fig. 177  ① ⇒ .
providing assistance ⇒ Fig. 177  ②.
⇒ Fig. 177  ③ preferably to a suitable jump start
connection point (earth connection) or otherwise to a solid metal part that is securely bolted onto
the cylinder block, or to the cylinder block itself of the vehicle providing assistance.
-volt battery, connect the other end of the black jump lead
⇒ Fig. 177  ③ preferably to the jump lead connection point (earth connection), or otherwise to a
solid metal part that is securely bolted onto the cylinder block, or to the cylinder block itself ⇒ .
s in such a way that they cannot come into contact with any moving parts in the
engine compartment.
Starting the engine

2-volt vehicle battery and wait two or three
minutes until the engine is running smoothly.
Removing the jump leads

unattended.
expansion tank when the engine is hot. Coolant may spray out and cause serious burns and other
injuries.
-clockwise while exerting
gentle downward pressure on the cap.
face, hands and arms from hot coolant or steam with a large, thick cloth.
spilt service fluids can start a fire.

WARNING
High voltages in the electrical system can cause electric shocks, burns, serious injuries and death!
-volt battery could explode.
started, never touch the electrical cables in the ignition system.

WARNING
There are rotating components in the engine compartment that can cause serious injury.

rotor blades can result in serious injuries. The fan is temperature-controlled and can start
automatically, even when the ignition has been switched off or the vehicle key has been removed
from the ignition lock.
e engine is started or with the engine running, there is an
additional, potentially fatal safety risk from the rotating parts, such as the poly V-belt, alternator,
radiator fan, and from the high-voltage ignition system. Always be particularly careful.
Always ensure that no body parts, jewellery, ties, loose items of clothing or long hair can be
caught up in rotating engine components. Before starting work, remove any jewellery and ties, tie
up long hair and pull clothes in tightly to avoid them getting caught on engine parts.
could move, even if the electronic parking brake is applied.
s and tools, in the engine
compartment. Any forgotten items can cause malfunctions, engine damage and fires.

WARNING

The engine oil must be changed on a regular basis. Always observe the service intervals applicable to
your vehicle ⇒ Service .
The engine oil and filter change should be carried out by a qualified workshop due to the special
tools and knowledge required, this also applies to the disposal of used oil. Volkswagen recommends
using a Volkswagen dealership for this purpose.
More details on the service intervals can be found in the chapter on service ⇒ Service .
Additives in the engine oil can cause new engine oil to discolour quickly. This is normal and does not
mean that the engine oil should be changed more frequently.

WARNING
If, in exceptional cases, you have to carry out an oil change yourself, please observe the following:


al when removing the oil drain plug with your fingers to help prevent oil
from running down your arm.
engine filling quantity.
l in empty food containers, bottles or any other non-original containers as
people finding these containers may not know that they contain engine oil.


Before changing the engine oil, first find out where old oil can be disposed of properly near you.

Used oil must be disposed of in accordance with regulations governing the protection of the
environment. Never dispose of used oil in locations such as gardens, woods, sewerage systems, on
streets and roads, or in rivers and waterways.
Engine oil consumption
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Engine oil consumption can vary from engine to engine and can change during the service life of an
engine.
The vehicle may consume up to 1.0 litre of engine oil per 2,000 km, depending on your driving style
and the conditions in which the car is used. In new vehicles, consumption may be higher for the first
5,000 km. The engine oil level must therefore be checked at regular intervals, preferably each time
the vehicle is refuelled and before long journeys.

In order to avoid overfilling, wait for approximately one minute after each refill step to allow the
engine oil to flow into the sump up to the marking on the engine oil dipstick.

Read the engine oil level from the dipstick again before refilling with a further small quantity of
engine oil. Never overfill engine oil .

After refilling, the engine oil level should be in the middle of area Ⓒ. It should not be above Ⓒ, in
area Ⓑ, and must not be in area Ⓐ .

If too much engine oil has been added unintentionally and the engine oil level is in area Ⓐ, do not
start the engine. Inform a qualified workshop and seek expert assistance if necessary.

Close the engine oil filler opening with the cap after filling.

Insert the oil dipstick into the guide tube as far as it will go. If there is a marking on the upper end of
the oil dipstick, this marking must fit into the corresponding groove at the top end of the guide tube
upon insertion.

Close the bonnet In the engine compartment.

WARNING
Engine oil can ignite if it comes into contact with hot engine components. It can cause fires, burns
and other serious injuries.
up and ignite when the engine is running.
dipstick is properly inserted back into the guide tube. This will prevent the engine oil from draining
out on to hot engine components when the engine is running.

NOTICE
⇒ Fig. 186  Ⓐ, do not start the engine. Inform a qualified workshop and seek expert assistance if
necessary. The catalytic converter and the engine could otherwise be damaged.