engine overheat VOLKSWAGEN T-ROC 2021 Owner´s Manual

WARNING
New brake pads will not have the optimal braking effect when first fitted.
New brake pads cannot generate the full braking effect during the first 300 km and must first be run
in. A reduced braking effect can be increased by applying more pressure to the brake pedal.
In order to reduce the risk of accidents, serious injuries and the loss of control over the vehicle, you
must drive particularly carefully when driving with new brake pads.
Never drive too close to other vehicles during the run-in time for the new brake pads and never
create a driving situation that will place a heavy load on the brakes.

WARNING
Overheated brakes reduce the braking effect and considerably increase the braking distance.
When driving downhill, the brakes are placed under particular strain and become hot very quickly.
Before driving down a long, steep gradient, reduce speed and change to a lower gear (with manual
gearboxes or in Tiptronic mode with the automatic gearbox). This will make use of the engine
braking effect and relieve the load on the brakes.
Non-standard or damaged front spoilers could restrict the airflow to the brakes and cause them to
overheat.

WARNING
Wet brakes or brakes coated with ice or road salt react more slowly and require longer braking
distances.
Carefully apply the brakes to test them.
Always dry brakes and clean off any coating of ice and salt with a few cautious applications of the
brake when visibility, weather, road and traffic conditions permit.

WARNING
Driving without the brake servo can considerably increase the braking distance and thus cause
accidents and serious injuries.
Never switch the engine or ignition off while the vehicle is in motion.
If the brake servo does not function or the vehicle is being towed, the brake pedal will have to be
depressed more forcefully as the braking distance will be increased due to the lack of assistance for
the brake system.

The airbags and belt tensioners will not work if the ignition is switched off.
The brake servo will not work when the engine is switched off. More force is required on the brake
pedal to stop the vehicle.
If the vehicle key is removed from the ignition, the steering lock may activate and you will no longer
be able to steer the vehicle.

WARNING
The components of the exhaust system become very hot. This can cause fires and serious injuries.
Never park the vehicle so that parts of the exhaust system can come into contact with any
inflammable material underneath the vehicle, e.g. undergrowth, leaves, dry grass, spilt fuel etc.
Never apply additional underseal or anti-corrosion coatings to the exhaust pipes, catalytic
converters, heat shields or particulate filter.

NOTICE
If the vehicle has been driven at high load for a long period, the engine can overheat when it is
switched off. In order to avoid damage to the engine, allow the engine to run in neutral position for
approximately 2 minutes before switching it off.

After the engine is switched off, the radiator fan in the engine compartment may run on for some
minutes, even if the ignition is switched off or the vehicle key has been removed. The radiator fan
will switch itself off automatically.
Electronic immobiliser
The immobiliser helps to prevent the engine from being started and driven with an unauthorised
vehicle key.
There is a chip in the vehicle key. The immobiliser is automatically deactivated by this when a valid
vehicle key is inserted in the ignition lock.
The electronic immobiliser is automatically activated when the vehicle key is removed from the
ignition lock. In vehicles with Keyless Access, the vehicle key must be outside the vehicle.
The engine can be started only using a Volkswagen Genuine vehicle key with the correct code.
Coded vehicle keys are available from a Volkswagen dealership.

Problem-free operation of the vehicle is guaranteed only with Volkswagen Genuine vehicle keys.
Troubleshooting

Fig. 101 On the right-hand side of the steering column: emergency start function in vehicles with the
keyless locking and starting system Keyless Access.
Fault in engine management system
The indicator lamp lights up yellow.
Fault in the engine management system.
The engine should be checked by a qualified workshop as soon as possible.
Engine speed limited
The indicator lamp lights up yellow.
The engine speed was limited to prevent the engine from overheating.
The engine speed is shown on the instrument cluster display.
The engine speed limitation will be cancelled again in the following cases:
Engine is no longer in a critical temperature range.
Foot is taken off the accelerator.
together with engine speed limitation due to fault in the engine management system
The indicator lamps light up yellow.
Engine speed limitation is activated due to a fault in the engine management system.
Make sure that the displayed engine speed is not exceeded.
The engine should be checked by a qualified workshop as soon as possible.
Glow plug system/engine management system
Vehicles with diesel engine:
The indicator lamp lights up yellow.
When the diesel engine is being pre-heated, the indicator lamp lights up in the instrument cluster for
a few seconds.

The indicator lamp lights up yellow.
Clutch is not transmitting the full engine torque.
If necessary, remove foot from the clutch pedal.
Clutch overheated
The indicator lamp lights up yellow.
An acoustic warning may also be given ⇒ .
The clutch can overheat, for example if the vehicle pulls off frequently, travels at a crawl for long
periods, or in stop and go traffic.
Overheating is indicated by the warning lamp and in some cases by additional warning lamps and a
text message in the instrument cluster display.
You can continue to drive.
Clutch faulty
The indicator lamp lights up yellow.
The clutch is faulty.
Drive on carefully!
Seek expert assistance. Failure to do so can cause considerable clutch damage.
DSG® dual clutch gearbox
Function of the DSG® dual clutch gearbox
Description
The vehicle is equipped with a DSG® dual clutch gearbox.
The DSG® dual clutch gearbox is a gearbox which uses dual-clutch technology to change gear
automatically. It uses a dual clutch and two gear train halves to enable very fast gear changes with
no loss of torque. The DSG® dual clutch gearbox thus combines the performance and economy of a
manual gearbox with the comfort and convenience of a conventional automatic gearbox.
Function
Engine power is transferred to the drive shaft via the gearbox. In order to change gears, the power
transmission between the engine and the gearbox has to be interrupted. This is what the clutch is
for.
With the DSG® dual clutch system with its two gear train halves, the engine power is always
connected to one gear train half when driving. Before a gear shift, the next-higher or lower gear is
already preselected in the load-free second gear train half. The clutch on the non-driven gear is then
closed, and the other is opened at the same time. This makes very fast gear changes possible.
Thanks to its design, the DSG® dual clutch gearbox is more efficient than an automatic gearbox.
Whereas in an automatic gearbox the torque converter is constantly in use, in the DSG® dual clutch

Kickdown function
The kickdown function enables maximum acceleration in the selector lever position D/S or in the
Tiptronic position.
If the accelerator is depressed fully, the gearbox will automatically shift to a lower gear, depending
on the speed and engine speed. This will make use of the full vehicle acceleration.
With the kickdown function, the gearbox does not shift up to the next gear until the engine reaches
the maximum engine speed for the gear.
When the Eco driving profile is selected in vehicles with driving profile selection ⇒ Driving profile
selection and 4MOTION Active Control  and the accelerator is depressed fully beyond the pressure
point, the engine output is automatically regulated to ensure maximum vehicle acceleration.

WARNING
Rapid acceleration can cause loss of traction and skidding, particularly on slippery roads. This can
cause you to lose control of the vehicle, which can lead to accidents and serious injuries.
Always adjust your driving style in accordance with the flow of traffic.
Use the kickdown function or fast acceleration only if visibility, weather, road and traffic conditions
permit, and if other road users are not put at risk due to the acceleration and the driving style.
Please note that the driven wheels could start to spin and the vehicle could skid if the TCS is
switched off and especially if the road is slippery.

WARNING
Never let the brakes rub too often and for too long or operate the brake pedal too often or for too
long. Constant braking will cause the brakes to overheat. This will considerably reduce the braking
power, significantly increase the braking distance and could cause the brake system to fail
completely.

NOTICE
Never let the brakes rub by applying light pressure when it is not necessary. This will increase levels
of wear.
Troubleshooting

After manual unlocking, carefully press the cover into the centre console while ensuring that the
electrical wires are positioned correctly.
Using the flat blade of the screwdriver from the vehicle toolkit, carefully push the release lever in the
direction of the arrow and keep it in this position ⇒ Fig. 109 .
Press the lock button on the front of the selector lever and move the selector lever into position N.
After manual unlocking, carefully press the cover into the centre console while ensuring that the
electrical wires are positioned correctly.
Emergency programme
There is a fault in the system if all the displays on the instrument cluster for the selector lever
positions have a light background. The DSG® dual clutch gearbox is running in an emergency
programme. The vehicle can still be driven in the emergency programme, but only at reduced speed
and not in all gears.
In vehicles with a DSG® dual clutch gearbox, you may no longer be able to select reverse gear.
In all cases, you should have the DSG® dual clutch gearbox checked by a qualified workshop
immediately.
Vehicle does not move even though position is engaged
If the vehicle will not move in the required direction, the system may have selected the position
incorrectly.
Depress the brake pedal and reselect the position.
If the vehicle still does not move in the required direction, there is a system fault. Seek expert
assistance and have the system checked.

WARNING
Never move the selector lever out of the position P if the electronic parking brake is not switched on.
Otherwise the vehicle could move unexpectedly if it is stopped on an uphill or downhill gradient,
which could lead to accidents and serious injuries.

NOTICE
If the vehicle rolls for an extended period or at high speed with the engine switched off and the
selector lever in the position N, the DSG® dual clutch gearbox will be damaged, e.g. when being
towed.

NOTICE
If the display indicates that the gearbox is overheating for the first time, the vehicle must either be
parked safely or driven faster than 20 km/h (12 mph).

If the text message and signal tone are repeated approximately every 10 seconds, park the vehicle
safely as soon as possible and switch the engine off. Allow the gearbox to cool down.
Do not drive on until the signal tone stops in order to avoid damage to the gearbox. You should not
pull away or drive the vehicle at very low speeds while the gearbox is overheated.
Downhill speed control
The downhill speed control system helps when braking and travelling downhill in vehicles with a
DSG® dual clutch gearbox ⇒ . The downhill speed control uses the braking power of the engine.
The DSG® dual clutch gearbox selects the best gear depending on the steepness of the gradient and
the current speed. The selector lever must be in position D/S. The downhill speed control is not
active in Tiptronic mode.
As the downhill speed control can shift down only as far as third gear, it may be necessary to activate
the Tiptronic mode when driving down particularly steep inclines. When in Tiptronic mode, select
second or first gear manually in order to make use of the braking effect of the engine and to relieve
the load on the brakes.
The start/stop system is automatically deactivated as long as downhill speed control is active.
Activating downhill speed control automatically:
If the downhill gradient is greater than approximately 6%.
AND: if the selector lever is in position D/S.
In addition, if the cruise control system or Adaptive Cruise Control (ACC) is switched off: if the
vehicle speed is less than approximately 80 km/h (50 mph) or the brake pedal is depressed.
In addition, if the cruise control system or Adaptive Cruise Control (ACC) is active: if the stored speed
is exceeded.
Deactivating downhill speed control automatically:
If the downhill gradient becomes less steep.
OR: if the gearbox shifts up a gear because the engine speed is higher than approximately 4,500 rpm.
Or additionally if the cruise control system or Adaptive Cruise Control (ACC) is active: if the stored
speed can be maintained.

WARNING
The intelligent downhill speed control technology cannot overcome the laws of physics, and
functions only within the limits of the system. Never let the extra convenience afforded by pull-away
assist systems tempt you into taking any safety risks when driving.
Unintentional vehicle movements can cause serious injury.
The downhill speed control cannot replace the full concentration of the driver.
Always adapt your speed and driving style to suit visibility, weather, road and traffic conditions.

An incorrect tyre pressure can cause overheating, sudden tyre damage including tyre bursts and
ripping of the tread surface and thus to a loss of control over the vehicle.
Driving on steep terrain
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Driving uphill or downhill
Get out of the vehicle and assess the situation before you attempt to drive up or down a hill:
Walk along the section and check the firmness of the ground. Look out for obstacles and other
hidden dangers ⇒ .
Check the section beyond the hill.
You should not follow the route if it is too steep, uneven or if the ground surface is too loose. Select
another route.
Drive slowly and at constant speed straight up or down a slope.
Accelerate only to the speed you need to climb the slope. Too much acceleration can cause the
wheels to spin and lead to a loss of control of the vehicle. Insufficient throttle increases the
probability of stalling the engine.
Never attempt to stop or turn on a slope.
Avoid allowing the engine to stall.
Do not change gear or engage the clutch when climbing a slope.
Use the offroad display ⇒ Offroad display .
If you cannot continue to drive up a hill
Never turn the vehicle around on an uphill gradient.
If the engine has stalled, depress the footbrake and start the engine again.
Select reverse gear and reverse back slowly in a straight line.
Use the foot brake to keep a constant speed until you have reached a safe place.
Driving downhill
Never exceed the tilt angle of the vehicle! If, in an emergency, you have to traverse the slope when
driving down it and the vehicle threatens to tip over, steer into the fall line immediately.
There is an increased risk of rolling over when driving downhill. Concentrate on steering the vehicle
when driving downhill in particular.
Use the offroad display on steep downhill stretches ⇒ Offroad display .
Drive down steep inclines in first gear.
Use the foot brake sparingly in order not to lose control of the vehicle.

prior to downhill gradients (manual gearbox or Tiptronic mode of the
automatic gearbox) to additionally make use of engine braking. The brake system could otherwise
overheat and fail.
will change because of the
trailer load and the increased combined towing weight of the vehicle and trailer.
When driving with this combination, drive particularly carefully and slowly.
Pulling off on slopes when towing a trailer
Depending on the steepness of the uphill gradient and the total weight of the trailer and vehicle, a
vehicle towing a trailer could roll back a short distance when moving off on a hill.
When towing a trailer, pull off on slopes as follows:

once to switch off the electronic parking brake ⇒ Electronic parking brake .
ly.
⇒ Manual gearbox: selecting a gear  or selector lever position D/S⇒ DSG® dual
clutch gearbox .
button and hold it in this position to hold the vehicle and trailer with the electronic
parking brake.
ake pedal.

button only when the engine has sufficient power to move off.

WARNING
Incorrect trailer towing can cause loss of vehicle control and serious personal injury.
and increase the braking distance.

pt your speed and driving style to suit visibility, weather, road and traffic conditions.
Reduce your speed, particularly when going downhill.

care when overtaking. Reduce your speed immediately if the trailer shows even the
slightest sign of snaking.

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