Headlight range control, servicing: Notes
WARNING: This page is about a different car, the 2004 Audi S4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Before beginning repairs on the electrical system:
- Obtain the anti-theft radio security code.
- Switch the ignition off.
- Disconnect the battery Ground (GND) strap.
- On vehicles equipped with Audi Telematics by OnStar®, switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery. See TELEMATICS .
- After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Manual and/or Owner's Manual.
- After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar®, switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module. See TELEMATICS .
- Disconnect battery Ground strap with ignition switched off.
NOTE:
Steps after re-connecting voltage supply. See BATTERY DISCONNECT PRECAUTIONS
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WARNING:
High voltage! On vehicles with High intensity gas discharge (Xenon) headlights, always disconnect the battery Ground strap before working on parts of the High intensity gas discharge (Xenon) headlights marked with yellow high voltage warning symbols.