Practical tips
Flashes
Fault in the diesel engine management.
Have the engine checked as soon as possible by a spe-
cialised workshop.
Note
While the control lamps , , or are
on, there might be faults in the engine, fuel
consumption may go up and the engine
might lose power.
Catalytic converter
To maintain the useful life of the catalytic
con
v
erter
●
Only use unleaded petrol with petrol en-
gines.
●
Never run the fuel tank dry.
●
When changing or adding engine oil, do
not exceed the necessary amount
›››
page 324, Topping up the engine oil.
●
Never tow the vehicle to start it, use jump
leads if necessary
›››
page 51 .
If you should notice misfiring, uneven run-
ning or loss of power when the car is moving,
have the vehicle inspected by a specialised
workshop. In general, the emissions warning
lamp will light up when any of these symp-
toms occur. If this happens, any unburnt fuel
can enter the exhaust system and escape in-
to the atmosphere. The catalytic converter
can also be damaged by overheating.
CAUTION
Never run the fuel tank completely dry be-
cause an irregular fuel supply can cause ig-
nition faults. This allows unburnt fuel to en-
ter the exhaust system, which could cause
overheating and damage the catalytic con-
verter.
For the sake of the environment
Even when the emission control system is
working perfectly, there may be a smell of
sulphur from the gases on occasions. This
depends on the sulphur content of the fuel
used. This can quite often be avoided by
changing to another brand of fuel.
Particulate filter
3 Valid f
or: vehicles with petrol or diesel particu-
late filters
The particulate filter eliminates most of the
soot from the exhaust gas system. Under
normal driving conditions the filter cleans it-
self. If the filter does not clean itself (e.g. if
short journeys are made continuously), it be-
comes blocked with soot and the following
indication is displayed to the driver: Par-
ticulate filter: cleaned while the
vehicle is moving. See Manual. The
particulate filter needs cleaning (regenera-
tion).
Re
generation of the particulate filter (only
for 2.0l TSI engines)
Requirements for the regeneration journey:
the engine is at operating temperature.
●
Drive at a speed of at least 80 km/h
›››
●
Completely remove your foot from the ac-
celer
at
or pedal for a few seconds to let the
vehicle roll with the gear engaged.
●
Consider the legal speed limits as well as
the recommended gears.
●
Repeat this procedure (accelerate and let
roll) until the control lamp turns off.
This procedure involves an autonomous par-
ticulate filter cleaning process and may take
some time.
If the warning lamp does not turn off, go im-
mediately to a specialised workshop to repair
the fault.
Regeneration of the petrol (except the TSI
2.0l engine) and diesel particulate filter
Requirements for the regeneration journey:
the engine is at operating temperature.
●
Drive at a speed of between 50-120 km/h
(31-75 mph). This increases the temperature
and burns the soot in the filter
›››
.
318
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