If the engine is running or the vehicle is moved, it is not possible to initiate final control diagnosis or the final control diagnosis is interrupted.
Perform self-diagnosis:
Both headlight parabolas should be checked only with the address word master 29 during this operation.
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Connect vehicle system tester -V.A.G 1552- and select “Xenon headlights” (address word 29); ignition is switched on → Anchor.
Readout on display:
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Enter function 03. Confirm the entry with the key Q.
Vehicle system test HELP
Select function XX
Readout on display:
Both headlight parabolas are set downwards to the deadstop.
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-> Press key.
Actuator diagnosis —>
The headlights will be lowered
Readout on display:
The parabolas on both headlights are set upwards to the deadstop.