I have a red warning light on the dash of my landrover disc.

switch on ignition, pull parking brake button upwards for approx 10 seconds...if it does not reset, you will have to have mount positions recalibrated with LR computer

This my not be exactly the same as your model, but probably close enough to identify the functions

Dash light fuse is under panel below steering wheel .

I just ran into a 2002 Discovery doing the same thing. What ended up being the fix was a cam sensor and crank sensor. That is about all I can say without more information. Hope this helps and best of luck.

Hi:
The only red warning light that is in the center of the dash is either the brake warning light or possibly the low tire pressure light?

Here is a link to the manual online, and you can look thru the warning light descriptions and actually search this electronic document:
http://www.motorcraftservice.com/pubs/content/~WO9FSN/~MUS~LEN/41/09fsnog2e.pdf

Suggests either Wheel Bearing, ABS Sensor Fault, or Shuttle valve. Best to get it to a dealer and on the computer for them to diagnose what exactly is wrong.

a housing gasket is causing the antifreeze leak thats not a big problem to repair ,but the dash light are another issue and without the right connection cable and software programme to sort out the lights i would suggest the main dealer .

if it is a mems unit , it will need to be programed to the key fob and alarm . (there is no way round it).

A circle with lines around it - depends where it is -
If its a top left light, then it should be a circle with an exclamation mark in the middle, and two lines running part way round the outside (1 to 5pm and 7 - 11pm). Thats the handbrake and brake fluid light which comes on for about 3 seconds when you start the engine ... if it comes on at any other time - seek help.
If its top centre, and has ABS in the middle, then its the anti lock braking light. Similar to above, lights up for a few seconds at start.

Muffler with lines coming off it - are they pointing outwards from the circle, (with a thermometer in the middle = transmission oil temperature guage), or are they on the left and all parallel (which would be main beam indicator, which lights up blue when on)

Make sure you are on level ground. All 4 wheels must be =. Play around with the diff-lock switch.

GL

http://carservicemanuals.blogspot.com/2008/06/download-land-rover-discovery-workshop.html