Volkswagen Golf 1999 Service Manual page 378

Exhaust system components, servicing
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Significance of Malfunction
Indicator Lamp (MIL) for
exhaust emissions
If the engine control module detects
a malfunction it switches on the
Malfunction Indicator Lamp (MIL).
Location MIL
Note:
The MIL can switch on in the
continuous or flashing mode. Check
the DTC memory in every case:
Repair Manual, 2.8 Liter VR6 4V
Fuel Injection & Ignition, Engine
Code(s): BDF, Repair Group 01
Flashing mode: There is a
malfunction present which can
damage the catalytic converter
when continuing to drive at this
power output. If this occurs,
continue driving only at reduced
output.
Continuous mode: There is a
malfunction present which
causes the emissions to
deteriorate. Check the Motronic
engine control module and/or
transmission control module.
Check the DTC memory if the
customer has a complaint or if
there is a driving characteristic
problem and the MIL does not
light up. This is because
malfunctions can be stored which
will not switch on the MIL
immediately.
- Check function of Malfunction
Indicator Lamp (MIL):
Repair Manual, 2.8 Liter VR6 4V
Fuel Injection & Ignition, Engine
Code(s): BDF, Repair Group 01
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12/2/2005