Get Fuel and emission control -> Emission-relevant components Guide for Volkswagen T-Roc SUV First Generation (2017-2025)

WARNING

Overfilling the fuel tank may cause the fuel to splash out and overflow. This could cause explosions, fires and serious or fatal injuries.

● Do not continue refuelling when the filler nozzle switches off for the first time.

NOTICE

If the fuel tank content is not consumed up to the reserve quantity at regular intervals, this may result in the fuel quality and system

functions necessary for vehicle operation not being maintained.

● You should therefore refuel at least every six months, but only when the indicator lamp lights up.

Fuels can pollute the environment. Collect any service fluids that escape or are spilled and dispose of them correctly.

The components relevant to emission control reduce harmful emissions:

—Catalytic converter (→ Catalytic converter).

—Particulate filter (depending on equipment) (→ Particulate filter).

—Maintenance .

WARNING

Toxic gases can enter the vehicle interior if the engine runs in closed spaces. This can cause serious injuries and lead to death by

suffocation.

● Do not allow the engine to run in enclosed spaces.

● Do not leave the vehicle unattended if the engine is running.

WARNING

The components of the exhaust system become very hot and can ignite highly flammable materials, e.g. undergrowth, leaves, dry

grass or spilt fuel. This can lead to a fire and cause serious or fatal injuries.

● Always park the vehicle so that no part of the exhaust system can come into contact with highly flammable materials underneath

the vehicle.

● Never apply additional underseal or anti-corrosion coatings to the exhaust pipes, catalytic converters, heat shields or particulate

filter.

Observe the following information to help ensure the long-term functionality of the exhaust system and the catalytic converter in the

petrol engine:

—Only use fuel that has been approved for the vehicle.

—Do not run the fuel tank empty (→ Fuel types and refuelling).

—Do not overfill engine oil (→ Engine oil).

—Do not tow-start the vehicle. Use jump leads (→ Jump starting).

If you notice misfiring, loss of power or uneven running when driving, reduce speed immediately and have the vehicle checked by a

suitably qualified workshop (→ Emission-relevant components). Volkswagen recommends using an authorised Volkswagen repairer.

Otherwise unburned fuel can enter the exhaust system and escape into the environment. The catalytic converter can also be damaged

by overheating.

The emissions may have a sulphur-like smell even if the emission purification system is working properly.

Function

The particulate filter is dependent on the vehicle equipment and filters out soot particles in the exhaust gas.

Regeneration

In normal vehicle operation, the filter cleans itself. If it is not possible for the filter to clean itself, for example, if the vehicle is only ever

used for short trips, the filter will become saturated with soot. The diesel particulate filter requires cleaning (regeneration).

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.

To assist the regeneration of the particulate filter, Volkswagen recommends that you avoid making frequent short journeys.

The soot in the particulate filter is burnt off at high temperatures on a periodic basis. During the periodic regeneration process,

the yellow indicator lamp

does not light up.

Irregular engine running and faults

Irregular engine running or faults when driving may be a sign of poor fuel quality.

1. Reduce speed immediately.

2. Drive to the nearest suitably qualified workshop at medium engine speeds and low loads on the engine. Volkswagen

recommends using an authorised Volkswagen repairer.

3. If these symptoms occur immediately after refuelling, switch off the engine immediately to avoid any subsequent damage.

4.

Seek expert assistance.

Particulate filter clogged with soot

The indicator lamp lights up yellow.

The particulate filter is saturated with soot and requires regeneration.

Prerequisite for regeneration trip: the engine is at operating temperature.

For petrol engines

1.0 l to 1.8 l

1. Drive at a speed between around 50 km/h and 120 km/h (around 30 mph and 75 mph).

The achieved temperature increase can burn the soot off the filter.

2. End the regeneration drive only when the indicator lamp goes out.

3. Go to a suitably qualified workshop without delay if the indicator lamp continues to light up after driving for approximately

40 minutes. Volkswagen recommends using an authorised Volkswagen repairer.

2.0 l and 3.0 l

1. Drive at a speed of at least 80 km/h (around 50 mph).

2. To allow the vehicle to coast while a gear is engaged, take your foot off the accelerator completely for a few seconds.

3. Repeat this procedure (accelerate and coast) until the indicator lamp goes out.

4. If the indicator lamp does not go out after some time, go immediately to a suitably qualified workshop. Volkswagen recommends

using an authorised Volkswagen repairer.

Emissions-relevant fault

The indicator lamp lights up yellow.

Fault in an emissions-relevant component that can damage the vehicle.

1. Go to a suitably qualified workshop and have the engine and exhaust system checked. Volkswagen recommends using an

authorised Volkswagen repairer.

Misfiring

The indicator lamp flashes yellow.

Misfiring is occurring that can damage the vehicle.

1. Go to a suitably qualified workshop and have the engine and exhaust system checked. Volkswagen recommends using an

authorised Volkswagen repairer.

WARNING

Fuel and emission control -> Emission-relevant components for Your Volkswagen T-Roc SUV First Generation (2017-2025)

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