S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Install in reverse order of removal, observing the following:
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Check the seal - 3 - between the power output stage and headlamp housing.
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Install the headlamp housing, Refer to => [ Headlamp Housing ]. See: Lighting and Horns/Headlamp/Service and Repair/Bi-Xenon HID
Headlamps With Cornering Light/Headlamp Housing