Operation
BlueTec® exhaust gas cleaning system
BlueTec® exhaust gas cleaning
system
M47_00-0055-71
The BlueTec® exhaust gas cleaning sys-
tem essentially comprises a supply tank,
a catalytic converter and an AdBlue®
metering system. It is monitored and
controlled electronically. Pollutants in
the exhaust gas are converted into en-
vironmentally friendly substances by the
addition of AdBlue® and the catalytic
converter integrated into the silencer.
The illustration above shows filler open-
ing (1) for the AdBlue® supply tank (next
to the diesel tank).
Note:
AdBlue® is consumed at a rate of ap-
proximately 3 % of the rate of diesel fuel
consumption. It is recommended that the
AdBlue® supply tank also be refilled at
every regular refuelling stop.
To function correctly, the BlueTec® ex-
haust gas cleaning system requires the
addition of a reducing agent (AdBlue®).
The addition of AdBlue® does not form
part of the routine scope of bus main-
tenance – it is the responsibility of the
vehicle operators to ensure that the Ad-
Blue® supply tank is regularly replen-
ished. Filling and operating the bus with
AdBlue® is mandatory for compliance
with emission regulations and is thus
one of the conditions for the road traffic
approval of the bus. The road traffic ap-
proval of the bus will be invalidated if
the bus is operated without AdBlue®. It
would then be against the law to operate
the bus on public roads. In some coun-
tries, operation of the bus without Ad-
Blue® may be considered to be a crimin-
al offence or a violation of administrative
law punishable by fine. Support in the
purchase or operation of the bus, i.e. tax
relief, road tax, may also be invalidated
retrospectively. This may be the case
both in the country in which the vehicle
is registered and in other countries in
which the vehicle is operated.
Danger.
It is essential that work relevant to safety
or work on safety-related systems be car-
ried out at a qualified specialist work-
shop.
Danger.
Always have maintenance work carried
out at a qualified specialist workshop
which has the necessary knowledge and
tools.
34
TRAVEGO / TRAVEGO M / TRAVEGO L (Euro VI)/07.2014 GB
Summary of Contents for TRAVEGO
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