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Operation
●
U
se of
so
lvent-free adhesives.
●
Use of CFC-free coolants in cooling sys-
tems.
●
Recycling and energy recovery from resi-
dues (RDF).
●
Improvement in the quality of waste water.
●
Use of systems for the recovery of residual
heat (thermal recovery, enthalpy wheels,
etc.).
●
The use of water-soluble paints.
Catalytic converter
To maintain the useful life of the catalytic
c
on
v
erter
–
Use only unleaded petrol with petrol en-
gines, as lead damages the catalytic con-
verter.
–
Do not let the fuel get too low in the tank.
–
For engine oil changes, do not replenish
with too much engine oil
›››
page 206, Top-
ping up engine oil.
–
Never tow the vehicle to start it, use jump
leads if necessary
›››
page 52.
If you notice misfiring, uneven running or
loss of power when the vehicle is moving, re-
duce speed immediately and have the vehi-
cle inspected at the nearest specialised
workshop. In general, the exhaust warning
lamp will light up when any of the described
symptoms occur ››› page 100. If this hap-
pens, unburnt fuel can enter the exhaust sys-
tem and escape into the environment. The
catalytic converter can also be damaged by
overheating.
WARNING
The catalytic converter reaches very high
temperat
ures! Risk of fire!
●
Never park where the catalytic converter
could come into contact with dry grass or
flammable materials under the vehicle.
●
Do not apply additional underseal or anti-
corrosion coatings to the exhaust pipes, cata-
lytic converter or the heat shields on the ex-
haust system. These materials could catch
fire when the vehicle is being driven.
CAUTION
Never run the fuel tank completely dry be-
cause the irr
egularity of the fuel supply may
cause ignition problems. This allows unburnt
fuel to enter the exhaust system, which could
cause overheating and damage the catalytic
converter.
For the sake of the environment
Even when the emission control system is
workin
g perfectly, there may be a smell of
sulphur from the exhaust gas under some
conditions. This depends on the sulphur con-
tent of the fuel used. Quite often the problem
can be solved by changing to another brand
of fuel
.
Diesel engine particulate filter*
Fig. 173 Vehicle data sticker on back cover of
the M
aint
en
ance Programme.
Your vehicle is fitted with a DPF (Diesel Partic-
u
l
at
e Filter) if the vehicle data sticker (back
cover of the “Maintenance Programme”) lists
the code PR 7GG ››› Fig. 173.
The diesel engine particulate filter eliminates
most of the soot from the exhaust gas sys-
tem. Under normal driving conditions, the fil-
ter cleans itself. If this is not possible (for ex-
ample, multiple short trips) the filter will be
obstructed by soot and the diesel engine
particulate filter warning lamp will light up.
This does not represent a fault, it is a warning
that indicates that the filter has not been
able to regenerate automatically and that you
166
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