Catalytic Converter; Adblue - Fiat DOBLO Owner's Handbook Manual

vapour can be emitted at the exhaust on
acceleration. This does not affect the
behaviour of the vehicle or the environment.
Cleaning process not possible
If % or C stays on, accompanied by
an audible signal and a message, this
indicates that the exhaust filter additive
level is too low.
The reservoir must be topped-up without
delay. Seek the assistance of a
workshop.

Catalytic converter

The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.
CAUTION
Fuel grades other than those listed on
pages 3 213, 3 271 could damage the
catalytic converter or electronic
components.
Unburnt petrol will overheat and damage
the catalytic converter. Therefore avoid
excessive use of the starter, running the
fuel tank dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven engine
running, a reduction in engine
performance or other unusual problems,
have the cause of the fault rectified by a
workshop as soon as possible. In an
164
emergency, driving can be continued for
a short period, keeping vehicle speed
and engine speed low.

AdBlue

General information
The selective catalytic reduction
(BlueInjection) is a method to
substantially reduce the nitrogen oxides
in the exhaust emission. This is achieved
by injecting a Diesel Exhaust Fluid (DEF)
into the exhaust system. The ammonia
released by the fluid reacts with nitrous
gases (NO ) from the exhaust and turns
x
it into nitrogen and water.
The designation of this fluid is AdBlue
is a non-toxic, non-flammable, colourless
and odourless fluid which consists of
32% urea and 68% water.
9
WARNING
Avoid contact of your eyes or skin with
AdBlue.
In case of eye or skin contact, rinse off with
water.
CAUTION
Avoid contact of the paintwork with
AdBlue.
In case of contact, rinse off with water.
AdBlue freezes at a temperature of
approx. -11 °C. As the vehicle is
equipped with an AdBlue preheater, the
emissions reduction at low temperatures
is ensured. The AdBlue preheater works
automatically.
In some circumstances below the
mentioned temperature, an error
message appears in the Driver
Information Centre. In this event, park the
vehicle in a space with a higher ambient
temperature until AdBlue is liquefied.
Note
Frozen and again liquefied AdBlue is usable
without quality loss.
The typical AdBlue consumption is
approx. 2 l per 1000 km / 600 miles, but
® . It
can also be higher depending on driving
behaviour (e.g. high load or towing).
Level warnings
Depending on the calculated range of
AdBlue, different messages are
displayed in the Driver Information
Centre. The messages and the
restrictions are a legal requirement.
1. The first possible warning is Top up
emissions additive: Starting
prevented in 2400 km / 1500 mi.
When switching on the ignition, this
warning will show up once briefly with
the calculated range. Additionally,
control indicator u will illuminate and