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– Pull off rubber seal -1- for plenum chamber covers.
– Detach plenum chamber covers -2- and -3-.
– Remove dust and pollen filter ⇒ Rep. gr. 87 .
Note
Cover air duct at air conditioner housing with clean cloth to stop
anything falling in.
– Remove wiper arms ⇒ page 113 .
– Unscrew bolts -arrows- for cowl panel trim -1- (left and right).
Caution
Risk of damage to cowl panel trim.
♦ Apply a small quantity of soap solution to transition be‐
tween windscreen and cowl panel trim -1-. Then, starting
at edge of windscreen, pull cowl panel trim vertically up
and out of retainer at windscreen.
– Carefully pull cowl panel trim off retainer at windscreen.
– Unscrew bolts -arrows-.
– Detach both retainers and engine control unit from electronics
box (plenum chamber).
– Move engine control unit to side with connectors attached.
– Turn air quality sensor - G238- -item 1- 90° in anti-clockwise
direction and take sensor out of mounting.
– Release retaining clips -arrows-.
– Slightly open cover for electronics box (plenum chamber) and
pull off to front.
Audi A8 2003 ➤
Electrical system - Edition 08.2014
336 Rep. gr.97 - Wiring
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