Roof leak in 2016 jumper/boxer/ducato

[sneakyfox]

I have a leak above the drivers seat and after some testing it turns out that the water comes in at the joint shown on the picture, which I have learned from the local paint shop is actually a strip of silicone. Surprisingly it's not the windshield itself that is leaking.

It would be nice to repair it myself instead of paying 250€ to the shop so I am wondering if I can buy this strip of silicone as a part? Or is it something that's formed in the shop?

Or is there a better way to do it?

Any help would be greatly appreciated! Thanks.

[PaulC5]

I would just go over it with some clear silicone sealant.

[sneakyfox]

Okay, do you think it will hold up over time as well?

[PaulC5]

It should last for some time provided the area is cleaned first and dry.

[sneakyfox]

Thanks! I will consider that.

If anyone knows whether that silicone strip is a part or not it would still be great to know.