Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.
Car Problem Reports
Audi Allroad Quattro Flasher Relay Failure Can Cause Erratic Turn Signal Operation
Audi Allroad Quattro Problem
Average Mileage: 92,680 mi (10,000 mi - 133,000 mi)
Visitor, 2001 Audi Allroad Quattro
Turn signal flashes once or twice for both sides and then shuts down. Hazzards work finde.
Visitor, 2002 Audi Allroad Quattro, 133,000 mi
Erratic clicking of the turn signal. Intermittent failure with <=> light briefly coming up when it happens.
Visitor, 2003 Audi Allroad Quattro, 82,000 mi
Turn signals started by periodically shutting down on it's own, and now have stopped working altogether.
Visitor, 2003 Audi Allroad Quattro
Both flashers stopped working altogether. Currently have to manually make them flash until they can be fixed.
Visitor, 2002 Audi Allroad Quattro, 130,000 mi
Eractic signal, stopped working. The panel around switch must be removed; once removed, use fine needle nose pliers to grip the edge of the switch and pull it out. Be sure to grab the plug after disconnecting so it won't f
drop down into the space, hell to get it out. After removing switch, tie cord or wire around switch to hold it until ready to plug in new switch. After plugging switch, push the unit back into place and push it back as far as possible; re[place panel after ensuring part is working..That's how I did it...Most shops wanted to drop the radio unit...I did mine in about 25 minutes. Purchase part online, dealer cost is ridiculous!!!
Visitor, 2004 Audi Allroad Quattro, 98,000 mi
Blinker sound would stay on after blinker went off and sound off and on. This seemed to get worse the hotter it was outside. Replaced the flasher and can now hear a shorting sound in the flasher. So I guess I will put the old one back and try another new one.
Visitor, 2003 Audi Allroad Quattro, 99,324 mi
having the same problem
Turn signals work erratically. HELP