Checking and refilling levels
Flashes
Fault in the diesel engine management.
Have the engine checked as soon as possibl
e by a
specialised workshop.
Note
While the control lamps , , or are
on, there might be f
aults in the engine, fuel
consumption may go up and the engine
might lose power.
Catalytic converter
To maintain the useful life of the catalytic
conv
er
t
er
●
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 297,
Topping up the engine oil.
●
Never tow the vehicle to start it, use jump
leads if necessary
›››
page 49.
If you should notice misfiring, uneven running
or loss of power when the car is moving, have
the vehicle inspected by a specialised work-
shop. In general, the emissions warning lamp
will light up when any of these symptoms
occur. If this happens, any unburnt fuel can
enter the exhaust system and escape into 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
ignition f
aults. This allows unburnt fuel to
enter the exhaust system, which could
cause overheating and damage the cata-
lytic converter.
For the sake of the environment
Even when the emission control system is
working perfectly, ther
e 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 Applies to: vehicl
es with petrol or diesel partic-
ulate filters
The particulate filter eliminates most of the
soot from the exhaust gas system. Under nor-
mal driving conditions the filter cleans itself. If
the filter does not clean itself (e.g. if short
journeys are made continuously), it becomes
blocked with soot and the following indica-
tion is displayed to the driver: Particu-
late filter: cleaned while the vehi-
cle is moving. See Manual. The partic-
ulate filt
er needs cleaning (regeneration).
Regeneration of the petrol particulate fil-
ter (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-
cel
er
at
or pedal for a few seconds to let the
vehicle roll with the gear engaged.
●
Repeat this procedure (accelerate and let
roll) until the control lamp turns off.
●
Consider the legal speed limits as well as
the recommended gears.
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
›››
.
»
291
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