Tiguan 2016 ➤, Tiguan 2021 ➤, Tiguan RUS 2017 ➤, Tiguan RUS 2021 ➤
Maintenance - Edition 12.2020
– Fit adapter -2- onto anti-theft wheel bolt -1- as far as stop.
– Fit wheel brace onto adapter -2- as far as stop.
– Tighten wheel bolts diagonally to specified torque.
Specified torque
Wheel bolts
Nm
140
Reducing agent (AdBlue®/DEF): re‐
plenishing
4.46
NOTICE
®
Only the reducing agent (AdBlue /DEF) can be used in Blue
TDI vehicles. NEVER fill in additive which has been used in
the past. It can destroy the reducing agent.
Note
♦ The following description applies to diesel vehicles with SCR
process (selective catalytic reduction).
♦ Additional information on the SCR process and reducing
®
agent (AdBlue /DEF) can be found in the glossary ⇒ page
192
General notes ⇒ page 128
Health/endangerment and cleaning ⇒ page 130
Disposal instructions ⇒ page 130
Filling reducing agent tank ⇒ page 131
Special tools and workshop equipment required
♦ Filling device for AdBlue -VAS 6960-
4.46.1
General information
Properties
®
♦
The reducing agent (AdBlue /DEF) is not a diesel additive
and must not be poured into the diesel fuel tank.
®
♦
The reducing agent (AdBlue /DEF) is used for exhaust
treatment to reduce nitrogen oxides in the exhaust gas of
diesel powered vehicles.
®
♦
The reducing agent (AdBlue /DEF) reduces these nitrogen
oxides to water and nitrogen.
128
4. Descriptions of work
Tiguan 2016 ➤, Tiguan 2021 ➤, Tiguan RUS 2017 ➤, Tiguan RUS 2021 ➤
Maintenance - Edition 12.2020
®
♦
The reducing agent (AdBlue /DEF) is a high-purity 32.5%
urea solution and is used in systems with exhaust treatment
(SCR catalytic converters) ⇒ page 192 for diesel engines.
®
♦
♦
The reducing agent (AdBlue /DEF) is legally required for
operating vehicles with SCR.
®
AdBlue is a registered trademark of the Verband der Auto‐
mobilindustrie e. V. (VDA) in the USA, Germany, the Euro‐
pean Union and other countries.
Application
®
♦
♦
Do not mix additives with reducing agent (AdBlue /DEF).
®
Do not dilute the reducing agent (AdBlue /DEF) with water.
♦ Do not use fluid which has already been used.
®
♦
Use only reducing agent (AdBlue /DEF) in the intended,
original containers. Also note the expiry date information.
♦ Additionally note the reducing agent manufacturer's usage
and storage instructions.
Technical data
♦ “NO reducing agent AUS 32” is the designation according
x
to ISO 22241-1.
®
♦
The reducing agent (AdBlue /DEF) is contained in a sepa‐
rate tank in the vehicle. It is NOT therefore mixed with diesel
fuel.
♦ A refill container approved by Volkswagen must be used for
®
replenishing the reducing agent (AdBlue /DEF).
♦ The part numbers for available sizes of containers is availa‐
ble in ⇒ ETKA.
Insufficient reducing agent
If the level of reducing agent is low, one of the following mes‐
sages appears on the dash panel insert:
♦ From a remaining distance of 2400 km, a gong sounds and
“Top up AdBlue (DEF)!” is displayed“ Remaining distance
2400 km”.
♦ From a remaining distance of 1000 km, a warning buzzer
sounds and “Top up AdBlue (DEF)!” is displayed“ No engine
starting in 1000 km”
♦ From a remaining distance of 0 km, a warning buzzer
sounds three times and “Top up AdBlue (DEF)!” is dis‐
played“ Engine start no longer possible is shown.”
System malfunction or incorrect filling
NOTICE
The vehicle is damaged by filling with reducing agent (AdBl‐
®
ue ) NOT in compliance with the standard or with other fluids.
In case of system malfunction or incorrect filling, one of the
following messages appears on the dash panel insert:
♦ From a remaining distance of 1050 km, “Check AdBlue
(DEF)!” is displayed“ Remaining distance 1050 km”.
♦ From a remaining distance of 1000 km, a warning buzzer
sounds and “Check AdBlue (DEF)!” is displayed“ No engine
start possible in 1000 km”.
4. Descriptions of work
129
Tiguan 2016 ➤, Tiguan 2021 ➤, Tiguan RUS 2017 ➤, Tiguan RUS 2021 ➤
Maintenance - Edition 12.2020
♦ From a remaining distance of 0 km, a warning buzzer
sounds three times and “Check AdBlue (DEF)!” is dis‐
played“ Engine start no longer possible”.
NOTICE
♦ As soon as the message “Check AdBlue! No engine start
possible! ” is displayed and the engine is switched off; the
engine cannot be started again.
– Fault recovery ⇒ Guided fault finding
4.46.2
Health risk and cleaning
CAUTION
®
♦
♦
AdBlue /DEF is corrosive and an irritant that can cause in‐
jury on contact with the skin, eyes and respiratory organs.
®
In the event of AdBlue /DEF coming into contact with the
eyes and skin, wash off immediately with plenty of water
for at least 15 minutes and seek medical assistance.
♦ In the event of skin contact with this fluid, immediately
wash off with plenty of water.
®
♦
In the event of AdBlue /DEF ingestion, rinse out the
mouth immediately with plenty of water for at least 15 mi‐
nutes. Do not induce vomiting unless instructed to do so
by a doctor. Seek medical assistance without delay.
NOTICE
®
Never allow reducing agent (AdBlue /DEF) to come into con‐
tact with trim or body parts.
®
If this happens, wash off the reducing agent (AdBlue /DEF)
with clear water and wipe area with a lint-free cotton cloth.
®
If the reducing agent (AdBlue /DEF) has already crystallised,
use warm water and a sponge.
Reducing agent that has not been removed will crystallise
after a while and may damage the affected surface.
4.46.3
Disposal instructions
Note
♦ Information reference storage and disposal ⇒ Infonet, Oper‐
ation, Strategy and deadlines, Environment, Handbook Serv‐
ice Environmental Protection! Ask your importer about coun‐
try-specific information on storage and disposal.
♦ The refill container must be disposed of in accordance with
environmental regulations.
130
4. Descriptions of work
Tiguan 2016 ➤, Tiguan 2021 ➤, Tiguan RUS 2017 ➤, Tiguan RUS 2021 ➤
Maintenance - Edition 12.2020
4.46.4
Reducing agent tank: filling
Procedure
Note
♦ Ensure that the vehicle is on a hard, level standing and that
the ignition is switched off.
♦ Refer to the ⇒ Operating manual for the filling device for
AdBlue -VAS 6960-.
♦ Use only demineralised water for cleaning any components
®
of the AdBlue /DEF system. Do not use tap water for this.
– Switch off ignition.
®
The filler opening for the reduction agent tank (AdBlue /DEF) is
located under the tank flap.
– Open fuel tank flap.
– Open the tank cap -arrow- of the reducing agent tank (AdBl‐
®
ue /DEF) under the fuel tank flap.
– Clean reducing agent tank filler neck with a water-soaked,
lint-free cotton cloth.
– Insert filler nozzle of filling device for AdBlue -VAS 6960- into
filler neck of tank for reducing agent, and start filling the tank
for reducing agent.
Note
The filler nozzle of the filling device for AdBlue -VAS 6960-
stops automatically when the required reducing agent level has
been attained.
– Remove filler nozzle.
– Screw on tank cap -arrow- of the reducing agent tank (AdBl‐
®
ue /DEF) until the cap locks.
4. Descriptions of work
131
Tiguan 2016 ➤, Tiguan 2021 ➤, Tiguan RUS 2017 ➤, Tiguan RUS 2021 ➤
Maintenance - Edition 12.2020
– Close tank flap.
Note
After filling the reducing agent tank, switch on the ignition and
leave it switched on for at least 30 seconds so that the system
can detect the replenishment.
Reducing agent (AdBlue®/DEF):
changing
4.47
Procedure
– ⇒ 4-cylinder common rail (2.0 l, 4V, turbocharger); Rep.
gr. 26; SCR system (Selective Catalytic Reduction)
4.48
Tyre pressure indicator: calibrating
Note
♦ The calibration of the Tyre Pressure Loss Indicator must on‐
ly be performed “after” the tyre pressure has been corrected
to the prescribed values.
♦ If no pressure loss and tyre damage are found after a tyre
pressure warning, the incorrect warning can be rectified by
calibrating.
Tyre Pressure Loss Indicator compares the speed and thus
the rolling circumference and vibrations of the individual wheels
via the ABS sensors. If the tyre pressure changes on one or
several wheels, the Tyre Pressure Loss Indicator will indicate
this in the dash panel insert and the Infotainment system.
The rolling circumference of tyre changes if:
♦ The tyre pressure is too low.
♦ The tyre has structural damage.
♦ The vehicle is loaded more heavily on one side.
♦ The wheels on one axle are loaded more heavily (e.g. when
towing a trailer or when driving in mountains).
♦ Snow chains are fitted.
♦ The temporary spare wheel is fitted.
♦ One wheel per axle has been changed.
The tyre pressure monitoring warning lamp has a yellow warn‐
ing lamp in the dash panel insert -arrow-.
132
4. Descriptions of work
2024 VW Tiguan Owner's Manual
