STARTING AND DRIVING
Emission control with AdBlue®13
AdBlue is an additive used in SCR14 systems to
reduce harmful emissions from diesel engines.
Diesel particle filter (DPF)
Diesel cars are equipped with a particle filter,
which results in more efficient emission control.
NOTE
The following may arise during regeneration:
a smaller reduction of engine power may
be noticed temporarily
•
•
•
The particles in the exhaust gases are collected
in the filter during normal driving. So-called
"regeneration" is started in order to burn away
the particles and empty the filter. This requires
the engine to have reached normal operating
temperature.
In the SCR system, AdBlue and the exhaust gas
component nitrous oxide are converted into nitro-
gen and water vapour, which considerably
reduces harmful nitrous oxide emissions.
fuel consumption may increase temporar-
ily
a smell of burning may arise.
AdBlue
AdBlue is a colourless fluid consisting of 32.5%
urea15 in deionised water and is manufactured in
accordance with the ISO 22241 standard. It has
been specially designed for SCR cleaning tech-
nology for diesel engines.
When regeneration is complete the warning text
is cleared automatically.
Filter regeneration takes place automatically and
normally takes 10-20 minutes. It may take a little
longer at a low average speed. Fuel consumption
may increase slightly during regeneration.
Use the parking heater* in cold weather so that
the engine reaches normal operating tempera-
ture more quickly.
Regeneration in cold weather
There is a separate AdBlue tank in the car, which
is topped up via a filler pipe located beneath the
cargo area floor. Consumption is dependent on
driving style, external temperature and the sys-
tem's operating temperature.
If the car is frequently driven short distances in
cold weather then the engine does not reach
normal operating temperature. This means that
regeneration of the diesel particle filter does not
take place and the filter is not emptied.
IMPORTANT
If the filter is completely filled with particles, it
may be difficult to start the engine and the fil-
ter is non-functional. Then there is a risk that
the filter will need to be replaced.
Conditions for driving with AdBlue
There must always be AdBlue of the correct
quality in the tank to allow the car to start. The
SCR system is very sensitive to contamination.
When the filter has become approximately 80%
full of particles, a yellow warning triangle is
shown in the combined instrument panel, and the
message Soot filter full See manual is shown
in the information display.
Related information
Fuel - diesel (p. 300)
•
The exhaust gas cleaning system constantly
monitors the tank level, quality and dosage of
AdBlue. A message is shown in the combined
instrument panel if anything is wrong.
Economical driving (p. 306)
•
Start regeneration of the filter by driving the car
until the engine reaches normal operating tem-
perature, preferably on a main road or motorway.
The car should then be driven for approximately
20 minutes more.
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* Option/accessory. 303
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