Audi A8 2003 Workshop Manual page 26

Audi A8 2003 ➤
8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
– Unscrew body brace -arrow-.
– Unclip covers for engine control units.
– Detach engine control units -1- and -2- from electronics box in
plenum chamber and from bracket -arrows-.
Note
The electrical wires remain connected.
– Turn air quality sensor - G238- approx. 90° anti-clockwise
-arrow- and remove from retainer.
– Release retaining clips -1 ... 4-.
– Open electronics box (plenum chamber) cover slightly and pull
off to front.
– Disconnect the electrical multi-pin connectors -1- using spark
plug connector pliers - V.A.G 1922- .
– Release retainers -arrows- and push auxiliary relay carrier in
electronics box upwards to remove.
20
Rep. gr.10 - Removing and installing engine
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