Cigar lighter / power outlet fuse in the Audi A4/S4 is the fuse №6 (Black fuse panel C) in the Driver’s/front passenger’s footwell fuse box.
Fuse Box Location
Driver’s/front passenger’s footwell
Left-hand drive vehicles: It is located under the footrest.
Right-hand drive vehicles: Behind the cover under the glove box.
Driver’s side cockpit
Luggage compartment
It is located in the left side of the trunk behind the trim panel.
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