How to open rear door?

I too have done a lot of time in the dirt. I find that if I throw my body at the rear door to make sure that it is shut properly then throw my body a second time and pull on the latch handle at max compression it will open. Next is to hose out all the fittings with water and then remember to keep repeating the wash outs as long as you drive in dusty conditions there will be no trouble. Frequently use a cycling water bottle to squirt water if out bush.

I too have had similiar problems when doing large holiday K's on dirt.
Problem is I have rear cargo barrier, so cannot get in the back at all if its stuck. Major problem when the food and beer are in there.

WD40, no difference at all.
Also noticed as well if push the door a little inwards as mentioned helps alot!

I havent played with the kiddy lock and will also keep this in mind.
A few weeks after being back in civilisation, it returns back to normal.

Thanks guys.

It's not just a Disco issue either.

The minesite I'm on at the moment (Nullagine) has about a dozen Playdo's. Almost every one of them suffers the problem of rear door lock sticking. Great when you've got a flat tyre (regular thing out here) and your jack and tools are in the back - and they've all got cargo barriers.

Back on Disco's - I've only ever had the problem described by Simon - and a regular dose of graphite powder seems to keep this at bay.

What about silicon spray?

Do you think this would help here.