Replace turn signal flasher
The turn and hazard flasher relays are incorporated into hazard switch.
The flasher is right above the fuse box, pull it out, and replace it with a good one.
It's in the hazard warning switch. You need to replace the switch.
The turn signal flasher relay is located behind the hazard light switch, which you can access by removing the associated dash trim panel
Check: Fuse Turn signal flasher Switch at steering column Bulbs
1996-2001 Audi A4 1998-2005 Audi A6 1997-2003 Audi A8 The flasher is located on the dash above the radio, it is te same unit as the hazard switch.
The first and least expensive thing I would do is replace the turn signal flasher. If the flasher is weak, then it could act-up just as you have suggested. The turn signal flasher is a separate system then the four way or hazard flashers even though they use the same bulbs. Generally, the turn signal flasher (which simply plugs in) is located near the steering column but on your model I would suggest you purchase it from your dealer and ask them to print out the picture of the flasher which will show you it's location. I you. Mark
bad bulb, relay, wiring, turn signal switch
Behind the flasher switch in the centre console.
The hazard switch is the flasher mod.
It is connected to the back of your Hazard Flasher. I just had to change mine. About $65.00 to $70.00. Couple of clips at the bottom of front panel then it just pops out.
Get the vag-com cable from eBay for $20 and do it or take it to the Audi they will do it for $30 there is Noway to do it with out vag cable
oil change service
The 2002 Audi S8 has a V8 engine.
The 2002 Audi S4 has a V6 engine.
The 2002 Audi S6 has 40 valves.
The 2002 Audi A8 has 40 valves.
The 2002 Audi A4 has 20 valves.
The 2002 Audi A6 has 30 valves.
The 2002 Audi S8 has 40 valves.
The 2002 Audi A6 has a V6 engine.
The 2002 Audi S6 has a V8 engine.
The 2002 Audi TT has 20 valves.