Thread: overheating 2000 Disco Series II TD5

Hi all!

Sorry to make my first post about a problem I'm having with a 2000 Series II Discovery TD5, but here I am!

I've read around a bit in an attempt to research the problem. With the following thread giving a good check list.

However I'd like to run the problem by you guys for any extra info, especially on the TD5.

Basically the Disco is overheating very quickly now and appears to be boiling off/discharging water through the over flow.

The following is the chain of events

• I drive about 100km and then the temp starts rising dramatically and finally peaks. The vehicle also loses power (electronically controlled??)
• 
  I immediately pull over and idle the engine, opening the bonnet and the check the levels.
• 
  The fan is running full tilt and the header tank level is almost empty and steam is blowing out from the cap.
• 
  After the engine has run for about 5 minutes the temp has stabilised and the fan switches off.
• 
  I'm able at the point to unscrew the header cap to top up..
  I partially unscrew it (not take it off, just to release pressure)
• 
  at this point the cooling fluid rushes back into the header tank, I screw the lid down hard again.. and the header tank level drops to almost nothing again.
• 
  I repeat these steps a couple of times until at some point the coolant ceases to flow back in the header tank.
• 
  I'm then able to top up the fluids and drive off carefully again.

The car seems to be functioning perfectly apart from this..

any additional help/tips would be appreciated.

p.s. I'm on the road in Montenegro and need to do some kinda stop gap repair.

The fan it seems is shot.. doesn't spin up when the engine revs.. and the radiator core is filthy

will update on if this is the fix