[fuel tank cap]

I have a 200tdi 90, while playing the other day i drove alone a steep side slope and noticed fuel ruining down the side of the panel from the filler cap, thing am thinking is if fuel can get out water can get in.

Has anyone had this problem?

Any way around this?

Thanks again

Then it's time for you to change the fuel tank cap. You can prevent leaks with a tight cap seal. Check this out, it may help you: How to replace a fuel tank cap.