Wet drivers floor not aircon

[ade]

So where is it coming from? Defo not a/c. Drains
are fine and it only happens from rain. Drivers
side only across the rear of the plastic insert
In the footwell carpet I'm think bottom of door seal since it
is quit worn. Any other ideas

[Roverlord off road spares]

Check your plenum drain holes at each side. I have seen a few discos and ones I've owned where heavy rain builds up in the plenum tray, and rises enough to get to the level of the seal for the windscreen motor cover plate and the blank onj the passender side. The rubber seal can seperate alowing water in.
RTC around the opening can fix it. Other cause is a windscreen leak

[DiscoMick]

Might be a silly question, but have you pulled up the carpet and made sure you don't have a rust hole in the floor? Mine did, and it's a common problem, apparently.

[disco 3 door]

Check firewall near body mount brackets for cracks.

[Boony73]

Might be a silly question, but have you pulled up the carpet and made sure you don't have a rust hole in the floor? Mine did, and it's a common problem, apparently.

My passenger side carpet was getting wet and it was a rust hole

http://www.aulro.com/afvb/discovery-1/174558-rust.html

[MacMan]

Check firewall near body mount brackets for cracks.

Definitely check this. Discos are known for it. I had a pair of cracks totaling about 80mm combined length from the passenger side. It was a pig of a job but I welded them up when the engine was out.

[ade]

Certainly no rust in the floor. Will check for
Cracks in the fire wall

[Disco Muppet]

Do the D1s have the firewall plugs?
I only just put my passenger side one back in today and I was getting damp carpets in rain.

[angus1]

My D1 leaked through the windscreen seals. Didn't find out until the windscreen had to be replaced that they were perished and rain was running down the inside of the A pillar.

[SLOWBOAT]

Another spot to look.
Lift the bonnet off, undo the wiper arm (drivers side), remove the plastic cover and have a look for rusted joint between the plenum tray/guard/A pillar as this is another area that seems like the windscreen but is not and is not visible until this is removed.

[ade]

so after further inspection, I discover its the heater matrix behind the dash that is leaking. noticed low coolant while checking under the bonnet for a trip home from mundaring to tom price last sunday. so I guess I'm pulling the dash to replace it. Also noticed when I got home this morning a puddle of oil under the front. seems to be coming from the front bottom main pulley/harmonic balancer thing.
got any tips from those who have been there before me for either of these jobs? sometimes its hard to love my lovely landrover
thanks
ade

[gazby]

If it's a Tdi fix that oil leak quick, there is a timing belt in there that hates oil and is fragile under ideal conditions.
If it's a V8 not so urgent a deal, a fairly easy fix, just keep an eye on the dipstick, just a contribution to the Land Rover patented underbody corrosion prevention system, but may not make your vehicle inspector happy if you have to have a roadworthy.

[Spel1]

so after further inspection, I discover its the heater matrix behind the dash that is leaking. noticed low coolant while checking under the bonnet for a trip home from mundaring to tom price last sunday. so I guess I'm pulling the dash to replace it.

If its a 300TDI or later V8, the job can be done without pulling the dash. Once you remove the support that's in the way (in the driver's side footwell) you will see the heater matrix. Carefully cut through the aluminium lines in a place where you can slide in heater hose later, then pull out the matrix like a cassette. Its a fiddle of a job, but can be done, and a lot easier than removing all the dash - took me less than a day. Some notes:
When you have the aluminium line out, cut an extra 10mm section, helps when reinstalling and with sliding the hose into place.
When you are ordering the matrix, get the O rings, really important.
When reinstalling the matrix, use some self adhesive foam to seal around it, otherwise you will get hot air on your feet in summer. Note where the foam was on the old one. Door draft stopper from the hardware store works well and self adhesive.
Loosely install the aluminium lines on the matrix before sliding it in if you can, they are horrible to get lined up once its in - when it is in you can tighten up the clamps.

Do a search for this here, there are a few posts and all of them useful.
Simon