Genuine Audi 90 Headlight

Audi 90 Headlight Parts and Q&A

• Headlamp Assembly
  893-941-029-G
  Q: How should headlight alignment be carried out in an emergency on Audi 90?

  A:

  Headlight alignment should ideally be carried out by an Audi dealer using a beam setter, but in an emergency, a specific procedure can provide an acceptable light pattern. Position the car at kerb weight, with correctly inflated tyres, on a level surface in front of a wall or garage door at right angles. Draw a horizontal line on the wall or door at headlight centre height and a vertical line corresponding to the centre-line of the car, measuring off points on the horizontal line that correspond with the headlight centres. Move the car back to approximately 10 metres (33 feet) from the wall or door, switch on the main beam, and check that the areas of maximum illumination coincide with the headlight centre marks, covering the remaining headlight(s) while making adjustments. Use an Allen key through the upper access holes to adjust the headlight; the outer screw adjusts the height while the inner screw adjusts the horizontal position, with turning the outer screw clockwise lowering the beam. Some models may have a height adjustment knob on the rear of the headlight for use when carrying heavy loads, and an electric beam adjuster system may also be fitted to certain models.
• Headlamp Assembly
  893-941-029-B
  Q: How to access and remove the headlight and car bulbs on Audi 90?

  A:

  Access to the rear of the right-hand headlamp unit is gained by removing the air cleaner inlet hose, while for the left-hand unit on 90 models, the radiator upper cover must be removed. To remove a bulb on 80 models, turn the rear plastic cover anti-clockwise, remove it, and then pull the wiring plug from the bulb terminals. On 90 models, release the spring clip and remove the rear plastic cover before disconnecting the wiring plug from the bulb terminals. The bulb can be removed by releasing the spring clip. If the bulb is to be re-used, avoid touching the glass with bare fingers; if touched, clean it with methylated spirit. To remove the headlamp, first take off the washer components if fitted, and disconnect any relevant wiring for electric beam adjustment systems. On 80 models, disconnect the wiring plug(s) from the rear of the headlamp, potentially removing the direction indicator lamp first, then unscrew the upper and lower mounting screws to withdraw the headlight. For better access, the narrow trim strip may be removed from under the headlamp. On 90 models, disconnect the wiring plug from the rear, unscrew the upper and lower mounting screws, and withdraw the headlamp forwards. If necessary, the lens may be removed by prising off the spring clips with a screwdriver. Refitting is a reversal of removal; when fitting the headlamp, tighten the upper mounting screws first, then the lower screws, and adjust the headlamp as needed. When fitting the bulb, ensure the centre terminal is positioned at the top for proper engagement of the bulb rim location lugs, and if the plastic cover is marked 'Oben', it should be uppermost when fitted.