Toyota Aygo B pillar water leak

[Allan Seaman]

We have a 2014 ,4 door Aygo which has developed a water leak . The  front passenger  seat base and back are very wet . The LH side roof lining above the B pillar has a 25mm wet water mark , so I’m guessing this is the source of the problem . The car is rarely used and is kept on a flat driveway. 
If anyone can throw some help I’d be grateful 

many thanks 

Allan

[FROSTYBALLS]

The second generation Aygo went on sale part way through 2014. It would be helpful if you can confirm whether yours is a first or second generation Aygo.

[Catlover]

Hi Allan, and welcome to TOClub