Condensation headlights after replacing cap

[d_taddei2]

Hi I recently replaced the dust cap behind the headlight as it never had one and was letting condensation in. But since replacing the cap (OEM) it's still getting condensation any ideas? It's only in one headlight and I tried silicia gel sachets this worked but as soon as I removed them and put cap back on condensation comes again.

 

[Pinky]

What year/spec car do you have?

There should be vent holes that could need clearing. You shouldn't really get condensation in June.

 

[d_taddei2]

Do you know where the vent pipes are located can't immediately seen any. It's only after some rain. My car is 2014 ST 1.6 TDI