Front wiper fault

[Okie]

Hi all

Ive got a front wiper fault,the garage I got it from hooked up to fault diagnostics and no fault came up. They decided to replace motor and still nothing working,any ideas please. Also at the same time the Audi pre  sense stopped working properly. 
 

Thanks in advance. 

[Steve Q]

They have to fix there issues otherwise you are entitled to a full refund if purchased within the 30 days of sale. 

[Okie]

I got the car middle of October and it’s under warranty,it’s like they haven’t got a clue what’s wrong and now sending it to an Audi dealer to diagnose problem.