A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001)
Relay Box: Service and Repair
Electronics Box (E-Box) In Plenum Chamber, Replacing
CAUTION!
Disconnect the battery Ground (GND) strap before working on the electrical system.
NOTES:
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Before disconnecting the battery, determine the correct coding for the anti-theft radio.
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After reconnecting the battery, check and activate the vehicle's electrical equipment (radio, clock, comfort and convenience features, etc.) as
outlined in the Owner's Manual.
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Remove mounting bolts (arrows) and pull off cover.
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When installing, press cover on by hand and tighten mounting boils in diagonal sequence. Tightening torque: 4 Nm (35 in. lb) (also see
information on cover).
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Remove engine control module and, if necessary, remove auxiliary relay panel/auxiliary fuse panel. See: Auxiliary Relay Panel/Auxiliary Fuse
Panel, Replacing
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Disconnect harness connector at connector station.
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Pull out engine wiring harness together with rubber grommet from opening in electronics box.
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Remove both nuts -A- (4 Nm or 35 in. lb).
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Lift electronics box off studs at rear and pull out of mount-B-.
Note the following when installing:
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Install in reverse order of removal.
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Always replace seal -C-: seal must not overlap opening in body and edge of sheet metal.