Yes. It turned out that, when he stripped it all down, the pipe had come away from the thermostat housing. He connected it back up put it back together. Topped it up with coolant and it's been fine ever since.

Ok. Thanks for all your input guys. I have a mechanic looking at it on Monday now. I'll let you know what we discover.

Head gasket??

I'm worse with internet than I am with engines.

Is there such a thing where 'some' water could leak out, but leave some in, as the RR runs ok. Doesn't overheat, gauge stays at 12 o clock.... I top up reservoir when cold It leaks out from behind the engine, then stops leaking and still runs at running temp.

Is there such a thing where 'some' water could leak out, but leave some in as the RR runs ok. Doesn't overheat, gauge stays at 12 o clock.... I top up reservoir when cold It leaks out from the back I of the engine, then stops leaking and still runs......

It doesn't always leak.

Not sure if much can be seen on pics. I did video it but wont let me upload video. Thoughts anyone? Bubbles in coolant? Likely point of leak?

You're the man Henry. I'll be seeking your advice from now on. Topped the coolant up cold this morning, bled the air out, and inside got warm air blowing, however, I have now noticed a leak from the underside. Coolant is dripping down the front offside of the oil sump so a leak somewhere above...

Ok. Thanks for your input Henry_b. I will have another look tomorrow and let everyone know how I get on

When you say topping off, you mean topping up the coolant.... am indoinvbthis with s hotbfngine or cold, so is it ok to open the reservoir cap with a hot engine and top up the coolant? How hard is it to replace the thermostat housing?

I tried to bleed it. Opened the bleed screw, air hissed out until coolant came out. I then tighten I'd and air pushes the level down. Level is between cold fill lines....

No visible water leak on the floor where I park. Temp gauge was at 12 o clock. Then today went up to red and warning 'coolant temperature' came up on the dash, then went off again and gauge dropped back to normal

Ok. I cant see any leaks in the reservoir. Don't know about egr valves. I'll try and locate them tomorrow.... would the above cause blowers in the car to not blow hot only cold air?

Help me out please. Right. Got this range rover 2007 3.6 v8 diesel The heaters only blow cold air, tried to top up coolant and bleed. Couldn't seem to get all the air out. And twice now when I've stopped theres smoke/steam from under the bonnet seemingly from somewhere under the right 'boost...

Thanks. How do I post it in the appropriate section?

Ok I thought you could see the steam on the pics but you cant.

Help me out please. Right. Got this range rover 2007 3.6 v8 diesel The heaters only blow cold air, tried to top up coolant and bleed. Couldn't seem to get all the air out. And twice now when I've stopped theres smoke/steam from under the bonnet seemingly from somewhere under the right...