— Close the fuel tank flap.
AdBlue®
WARNING
Note and , at the beginninognopfatgheis2c9h1a,patnedr,,on
page 294.
If the fuel tank is overfilled, the fuel could splash and
overflow. This could cause explosions, fire and
serious injury.
you see.
Using the urea solution AdBlue® zador the catali
,
SCR transforms nitrogen oxides into nitrogen
and water. AdBlue® is a registered trademark
and is also known as AUS32 or DEF (Diesel
Exhaust Fluid).
Do not continue refueling when the fuel dispenser
gun shuts off the supply for the first time.
mere time.
Legal warnings It is
exhaust gas purification
not allowed to make technical modifications to the
exhaust gas purification system that influence the
purification of exhaust gases carried out by AdBlue® .
Introduction to the topic
The relevant components for exhaust gases reduce
polluting emissions:
If the AdBlue® expressly authorized by Volkswagen
according to ISO-22241-1 is not used or refilled, the
vehicle will not conform to the certificate of conformity
issued for this type of vehicle.
— AdBlue® ÿ p. 294 —
Catalyst ÿ p. 297 —
Particle filter (depending on equipment) ÿ p. 297
Using the vehicle without the AdBlue® prescribed
by Volkswagen may be punishable.
If the exhaust gas cleaning system is not used as
intended, exhaust gas emissions may worsen.
WARNING
Exhaust gases contain carbon monoxide, which
can cause unconsciousness and death.
Information regarding AdBlue®
· Do not leave the engine running in closed spaces
two.
The AdBlue® consumption depends on the driving
style, the operating temperature and the ambient
temperature. On the instrument panel screen you
can check the remaining range and the amount to be
· Never start the engine in closed spaces.
charged ÿ p. 26.
· Do not leave the vehicle with the engine running
Since AdBlue® freezes from -11 °C (+13 °F), if
the temperature is very low, there may be limitations
when refueling. The system is heated while driving
to ensure exhaust gas purification even at very low
temperatures.
unattended.
WARNING
The exhaust system components become extremely
hot and this can cause a fire.
AdBlue® must be charged regardless of whether the
services are performed, as it may be required more
frequently or between service intervals.
· Park the vehicle so that no exhaust system
component comes into contact with easily
flammable materials that may be found under the
vehicle, such as dry grass.
Never allow the AdBlue® tank to empty completely ÿ
p. 298.
· Never use additional protection for the underbody
of the vehicle or anti-corrosion products for the
exhaust pipes, catalytic converters, particulate
filters or thermal insulators.
Low charge level warning and indication system
Add AdBlue® whenever an indication to do so
appears on the instrument panel displayÿ p. 297
294
Fuel and exhaust gas purification
plenty of water for at least 15 minutes and, in
case of skin irritation, consult a doctor.
AdBlue® in the normal operating range. The
remaining range is greater than 2,000 km or 2,400
km (depending on equipment). It is possible to fill
AdBlue® , but it is not necessary.
· If AdBlue® is swallowed, immediately rinse
mouth with plenty of water for at least 15
From a remaining range of less than 2,000
km or 2,400 km (depending on equipment), a
message appears on the instrument panel screen
requesting that AdBlue® be refilled . At the same
minutes. Do not induce vomiting unless advised
by a doctor. Seek immediate medical assistance.
To the
WARNING
time, the remaining autonomy is displayed on
that moment.
If the AdBlue® level is too low and the ignition is
switched off, it will no longer be possible to restart
the engine. Not using the start help either!
If this message is ignored, from a remaining range
of 1000 km the yellow control indicator will light up
The instrument panel display will show the indication
. that after XXX km it will no longer be
possible to start the engine again .
· Add enough AdBlue® when there is a range of
approx. 1000 km, at the latest.
If the yellow control lamp is ignored, when a
remaining range of 0 km is displayed, it will no
longer be possible to start the engine again. The red
warning light will come on.
· Never drain the AdBlue® tank completely .
WARNING
Warning and indication system in case of failure
Incorrect handling of AdBlue® can cause damage to
the vehicle that is excluded from the legal guarantee.
If the exhaust gas purification system has a fault or
has been filled with AdBlue® that does not comply
with the ISO-22241-1 standard, the white or yellow
control lamps light up. When the yellow conctormoleligohnt,sa
range of 1000 km remains.
Use only AdBlue® that meets the standard
ISO 22241-1.
· Never mix AdBlue® with water, fuel,
ble or additives.
· Never fill AdBlue® in the gas tank
If the yellow control lamps are ignored, the red
warning lamps light up. That gives a range of 0aknmd
it is not possible to start the engine again.
read.
· Do not carry the refill bottle permanently in the
vehicle. In the event of a leak, due to temperature
changes or damage to the bottle, the AdBlue®
ATTENTION
could damage the interior of the vehicle.
AdBlue® is an irritant and corrosive liquid that can
cause damage to the skin, eyes and respiratory
organs if it comes into contact with them.
Refill AdBlue®
· Before using AdBlue® ,
observe the instructions
for use. If you follow the instructions for use
correctly, it is unlikely that you will come into
contact with AdBlue® .
Note and , on page 291, and , at the beginning
of this chapter, on page 294.
· Store AdBlue® only in the tightly closed original
container. Never use empty food cans, bottles
or other containers.
· Always store AdBlue® in a safe place, out of the
reach of children.
· If AdBlue® comes into contact with your eyes,
rinse immediately with plenty of water for at
least 15 minutes and seek medical attention.
Fig. 206 Behind the fuel tank flap: AdBlue tank cap
(schematic representation).
3 G 0 0 1 2 7 6 0 A H
· If AdBlue® comes into contact with the skin,
immediately rinse the affected area with
295
exhaust gas purification
Refueling with a pump gun The
AdBlue® tank can be filled at all AdBlue® pumps .
Do not add fuel and AdBlue® at the same time.
— The AdBlue® dispenser gun works like a fuel
dispenser gun.
— Keep the handle of the AdBlue® dispenser gun
downwards to ensure optimal refueling ÿ fig. 207
.
B — The AdBlue® tank is full when the nozzle
shuts off the supply for the first time ÿ .
If a truck pump is used, the supply may be shut off
earlier. There is a danger of the AdBlue® leaking
out , since the filling speed of these dispensers is
considerably higher ÿ .
Fig. 207 Behind the fuel tank flap: Filling up AdBlue
refuel with a jerry can
with a refill bottle or a nozzle (schematic illustration).
— Open the canister and use the built-in spout to
fill the AdBlue® tank .
— The tank is full when the AdBlue® reaches the
level of the filler neck. Do not overfill the AdBlue®
tank ÿ .
Legend to ÿ fig. 206 , Fig. 207:
1 AdBlue® filler cap 1
2 Refill Bottle 2
3 AdBlue® single pump gun 3
Operations before continuing the march
— Screw on the Ad filler cap.
Blue® until it clicks.
prepare refueling
— Close the fuel tank flap.
The AdBlue® filler neck is located behind the fuel
tank flap, next to the fuel filler neck ÿ fig. 206.
— Just switch on the ignition and leave it on
for at least 30 seconds for the system to detect the
charge.
— Park the vehicle on a level surface and
switch off the ignition.
— Then start the engine.
— Open the fuel tank cap.
WARNING
— Unscrew the cap from the AdBlue® filler neck .
Adding too much AdBlue® can damage the tank
system and the vehicle.
— Use only AdBlue® that meets the standard
ISO 22241-1.
· Do not refuel more than the maximum amount
indicated on the instrument panel display.
Refuel with a refill bottle
· If AdBlue® is spilled , clean it
up as soon as
possible with a damp cloth and plenty of cold
water.
Please note the expiration date, directions and
manufacturer's information on the refill bottle.
· Remove any AdBlue® that has crystallized with
hot water and a sponge.
— Unscrew the cap from the refill bottle.
— Place the bottle in the Ad Blue® filler neck and
screw it on tightly.
Dispose of the refill bottle in an environmentally
friendly manner.
— Keep the bottle pressed.
You can purchase suitable AdBlue® refill
bottles from Volkswagen dealers.
— The AdBlue® tank is full when no more liquid
comes out of the bottle ÿ .
— Unscrew the bottle.
296
Fuel and exhaust gas purification
Catalyst
Problems and solutions
Note and , at the beginningonofptahgisec2h9a1p, taenrd, o,n
page 294.
Note and , at the beginningonofptahgisec2h9a1p, taenrd, o,n
page 294.
For a long life of the exhaust system and catalytic
converter of the gasoline engine: — Refuel only with
Fault in the SCR system
The red warning lights
they light up
unleaded gasoline.
Error: AdBlue! It is not possible to start the engine!
— Never drain the fuel tank completely.
fuel ÿ p. 293.
The SCR system has a fault or has been filled with
AdBlue® that does not meet the prescribed standard.
Therefore it is not possible to restart the engine.
— Do not overcharge engine oil ÿ p. 322.
— Do not tow start; use startup aid instead ÿ p. 309.
— Immediately go to a specialized workshop without
turning off the engine.
If misfires occur while driving, there is a loss of power
or the engine does not turn correctly, reduce speed
immediately, go to a specialized workshop and have
the vehicle checked ÿ p. 298. In these cases, unburned
fuel residues can get into the exhaust system and thus
into the atmosphere. In addition, the catalytic converter
could also be damaged by overheating.
— Request that the system be reviewed.
Fault in the SCR system
either
HE
The yellow or white control lights come on.
Error: AdBlue! Impossible to start the engine after
XXX km.
Even if the exhaust gas cleaning system works
perfectly, the exhaust gases may have a sulfur-
like odor.
The SCR system has a fault or has been filled with
AdBlue® that does not meet the prescribed standard.
— Immediately visit a specialized workshop.
— Request that the system be reviewed.
particle filter
AdBlue® level too low Red
Note and , at the beginningonofptahgisec2h9a1p, taenrd, o,n
page 294.
warning light comes on.
Charge AdBlue! It is no longer possible to start the engine!
Function
It is not possible to start the engine because the
The particulate filter (depending on equipment) filters
soot from the exhaust gases.
AdBlue® level is too low.
— Park the vehicle.
Regeneration
— Add the minimum amount of AdBlue® required ÿ p.
295.
During normal driving, the filter is cleaned
automatically. If automatic filter cleaning is not possible
(eg if short journeys are made all the time), the filter
becomes saturated with soot. The particle filter needs
cleaning (regeneration).
either
AdBlue® level low
The yellow or white control indicator lights up.
Noise, slight odor and increased speed may be
generated during regeneration.
Radiator fan afterrunning may occur both while driving
and after switching off the engine.
Charge AdBlue! Impossible to start the engine after
XXX km.
— Fill up AdBlue® within the kilometers indicated ÿ p.
295.
To contribute to the regeneration of the particulate
filter, Volkswagen recommends that short trips are not
carried out continuously.
3 G 0 0 1 2 7 6 0 A H
297
exhaust gas purification
for diesel engines
WARNING
— Drive at at least 60 km/h at an engine speed of at
least 2000 rpm. Thus raising the temperature, soot
can burn in the filter.
If unexpected maneuvers are carried out for
other road users, accidents may occur.
· Always adapt your speed and driving style to
the visibility, weather, road and traffic
conditions.
— Do not complete the regeneration run until the
control lamp goes out.
— This procedure triggers a cleanup process.
automatic part of the particle filter and can last
between 20 and 40 minutes approx. If after a
journey of approx. 40 minutes the control
indicator remains on, go immediately to a
specialized workshop.
· Observe the legal provisions of the country in
question when driving.
The soot retained in the particulate filter is
periodically burned at a high temperature.
During a periodic regeneration the yellow control
.
lamp does not light up
Fault relevant to exhaust gases
The yellow control indicator lights up.
Problems and solutions
There is a fault in a component relevant to exhaust
gases that can damage the vehicle.
Note and , on page 291, and , at the beginning
of this chapter, on page 294.
— Go to the nearest specialized workshop.
— Request an overhaul of the engine and fuel system.
exhaust.
Irregular engine operation and anomalies
If while driving the engine does not turn correctly or
anomalies arise, it could be due to poor fuel quality:
Combustion failures
— Immediately reduce speed.
The yellow control lamp flashes.
Misfires occur that can damage the vehicle.
— Go to the nearest specialized workshop for an
intermediate speed and avoid subjecting the
engine to great efforts.
— Go to the nearest specialized workshop.
— If these symptoms appear right after refueling,
immediately shut down the engine to avoid
possible damage.
— Request an overhaul of the engine and fuel system.
exhaust.
When the control indicators light up or flash,
— Request the help of specialized personnel.
anomalies can be expected in the mo
tor and increased fuel consumption.
Soot saturated particulate filter
it turns on.
The yellow control lamp
The particulate filter is saturated with soot and needs
to be regenerated.
Requirement for the regeneration run: The engine is
at operating temperature.
For gasoline engines
— Drive at a speed of at least 80 km/h.
— Take your foot completely off the accelerator
pedal for a few seconds to let the vehicle roll into
gear.
— Repeat this procedure (accelerate and let run)
until the control indicator goes off.
— This procedure triggers a cleanup process.
automatic part of the particulate filter and may
take some time. If the control indicator does not
go out, contact a specialist workshop immediately.
298
Fuel and exhaust gas purification
2024 VW Passat Owner's Manual
VW Passat B7 Service & Repair Manual
VW Passat B6 Service & Repair Manual
