Can anyone help me my boot seems to be leaking.

I thought it was the sealant on the rear lights, but there is water on the underside of the boot.

cheers

 

It could still be the lights, it's more than likely condensation on the boot lid!!
Mine was leaking around the rubber seal recently, the water was going under the seal and appearing inside the boot, only found out by beiong shut in and getting an assistant to spray the boot!!

 

Check your rear windscreen. I had two leaks, one from the light but the other was from the top corner of the rear windscreen. It was running down the inside of the frame and into the boot. This can be checked by removing the rear seatbelt cover on the rear A pillar and running water down the outside. If its leaking you may see water running down. I cured all mine with plenty of silicon in the necessary places.

Good luck

Neil