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In the Audi booklet there is a number u must enter or call Audi dealership with Vin number
Behind passenger seat is a lock box. Unlock and inside is a lever. Pull down and trunk will unlock.
with the key
The headlight bulb for the 2004 Audi A4 depends on whether you have HID or Halogen lighting system. See Sources and Related Links below.
The 2004 Audi A8 has a V8 engine.
The 2004 Audi A4 has 20 valves.
The 2004 Audi A8 has 40 valves.
The 2004 Audi TT has 20 valves.
The 2004 Audi A6 has a V6 engine.
The 2004 Audi S4 has 40 valves.
The 2004 Audi A6 has 30 valves.
The 2004 Audi S4 has a V8 engine.