Volvo V90 2019, Owner'S Manual

Page: 452 / 674

STARTING AND DRIVING
450
Emission control with AdBlue
®
18
AdBlue is an additive used in the SCR
19
system
to reduce emissions of noxious substances from
a diesel engine.
In the SCR system, the AdBlue and the nitrous
oxide exhaust gas substance are converted to
nitrogen and water vapour, which significantly
reduces the emissions of harmful nitrous oxides.
AdBlue
AdBlue is a colourless liquid consisting of 32.5%
urea
20
in deionised water and is manufactured in
accordance with the ISO 22241 standard. It is
specially developed for SCR cleaning technology
for diesel engines.
AdBlue has its own tank in the car and is topped
up via a separate filler pipe behind the fuel filler
flap. Consumption depends on driving style, out-
side temperature and the operating temperature
of the system.
Conditions for driving with AdBlue
There must always be AdBlue of the correct
quality in the tank before the car can be started.
The SCR system is very sensitive to contami-
nants.
The emission control system continuously moni-
tors the tank level, quality and dosage of AdBlue.
If something is wrong, a message is shown in the
driver display.
IMPORTANT
AdBlue is required for the function of the
SCR system and legal emissions compliance.
It is illegal to modify or manipulate the AdBlue
supply system in any way so that no AdBlue
reagent is consumed when it is required for
legal exhaust emissions compliance. Any
such tampering may be a criminal offence
which may lead to legal prosecution actions.
It is not permitted to operate the car with an
empty AdBlue tank, since it will no longer be
compliant with the legal requirements for
exhaust emissions. Therefore, the car is
equipped with a warning system to inform
when AdBlue refilling is required. When the
fill level in the AdBlue tank is getting low,
warnings are displayed to inform that AdBlue
refilling is required.
Related information
• Handling AdBlue
®
(p. 450)
•
Checking and filling with AdBlue
®
(p. 451)
• Symbols and messages for AdBlue
®
(p. 453)
Handling AdBlue
®
21
AdBlue consists primarily of water (approx.
67.5% water and 32.5% urea). The fluid is not
flammable but should be handled with care
since it can irritate the eyes and skin.
Points to remember when handling
Avoid inhaling vapour as well as contact with skin
and eyes. Preferably use gloves that prevent irri-
tation to sensitive skin when handling the fluid.
WARNING
Action for first aid:
•
For inhalation - get fresh air.
•
For skin contact - wash the skin with
soap and water.
•
For contact with the eyes - rinse immedi-
ately with a lot of water.
•
For ingestion - rinse the mouth thor-
oughly. Do not induce vomiting.
Seek medical attention if the discomfort
remains or if a large quantity has been inges-
ted.
Action in the event of a spill
AdBlue spilled on the ground, the car or painted
surfaces must be rinsed thoroughly with water.
Avoid releasing into the drainage system.
18 Registered trademark that belongs to Ver-band der Automobilindustrie e.V. (VDA)
19
Selective Catalytic Reduction
20 CO(NH
2
)
2