2007 A6 C6 Avant Allroad

When I indicate Left all is well. When I indicate Right:

The Right Indicator and warning light flash, then the Left Indicator and warning light flash

And so on, back and forth. Must be very confusing for the guy behind!

Sometimes the Right indicator stops, unless I hold the stalk over.

Any suggestions please?

If I didn't know better I would've put money on you driving a Peugeot with those symptoms mate, never come across it on an Audi yet. With the Peugeots it's a worn part at the base of the indicator stalk in the com unit, I don't know if/ the Audi units suffer with the same sort of issue.

My bet would be on a faulty hazard switch. Id recommend a diagnostic check to see if any fault codes flag up. 

39 minutes ago, daveyboy1967 said:

If I didn't know better I would've put money on you driving a Peugeot with those symptoms mate, never come across it on an Audi yet. With the Peugeots it's a worn part at the base of the indicator stalk in the com unit, I don't know if/ the Audi units suffer with the same sort of issue.

This is quite common on the C5 Dave, and it's most often caused by the hazard switch failing as I had similar problems with my C5. 

That must be about the only electrical problem I haven't had on mine yet Steve!