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Re: 200Q no start

The fact that the lights do not dim when the key is in the START
position clearly points to a faulty ignition lock contact group.

It is this group that shuts off all of the non-essential high current
consuming accessories (including but not limited to the headlights) for
the duration of the START operation as to allow the 100% of current to
be delivered to the starter alone.

Only if the contact group worked, one could start troubleshooting the
secondary circuits such as the starter solenoid and the like. 

Igor Kessel
'89 200TQ -- 18psi (TAP)
'98 A4TQ -- FINALLY!
Philadelphia, PA