Help finding parasite loss.

[Markadair]

Hi, my A3 has developed a parasite loss on S131 circuit,  which sounds like a relay clicking open & closed under the centre console, around the hand brake or auto shift lever.

Can anyone offer advice??

[cliffcoggin]

Parasitic loss is a bit vague. How many amps are being drained from the battery?

The handbrake switch under the brake lever may be what you are hearing. It would be worth looking at its condition.

[Steve Q]

I'd recommend a diagnostic check to see if any fault codes flag up or get an auto electrician to take a look.