Back door n/s water leak

[Morgs]

Hi from new user with first post about my first 2013 LWB belingo van not a work van just for my hobby,
bought my van in December and opened back door and noticed it was half full or water, I noticed number plate light clips were snapped off
and siliconed in so installed new ones and still leaked bought some 2mm rubber off Amazon cut fitted those with a bit of silicone and now no leaks.
but noticed a leak around the door handle even though they appear to have there gaskets. Any ideas from you the experts.

[Sol]

Check round the thick door body between the thinner outer skin, and the inner pressed panel, around the thick part they often have holes covered with a kind of sticker. I found one has come off of my side door on the van so I cut out a bit of t-rex tape (waterproof duck tape) and stick it over the hole snugly to stop water getting in.

[Morgs]

Thanks for that when I done a water test water seemed to come through the middle and run along the length then run down into the door.