Hi all, basically I bought my discovery 300tdi at the start of the week, got it taxed and insured and drove it for the first time on Wednesday, just a short drive round no motorway ect.. All seemed fine apart from the heaters just blow cold.
Drove it to work on Thursday morning and going up the motorway at 70mph it started to overheat, whilst it started overheating the heaters blew hot air, I pulled over and let it cool down abit, set off again and it started overheating yet again as I was coming off the motorway but this time before I stopped it returned to the right temperature but still cold heaters, anyway I put a thermostat in it and tried to bleed it up, whilst bleeding it I found the heaters got boiling hot and all was fine until I notice water was slightly leaking out of the header tank cap, now every time I removed the top plastic bung from the thermostat housing nothing came about for around 30 seconds then a gush of water, as the water came out of the bung hole the header tank drained but when I put the bung back in the header tank refilled itself ???
I then put it down to the water pump so I drove the car home steady, on the motorway it never overheated and the heaters were boiling hot but as I left the motorway (around a 15minute drive) the heaters went back to freezing and the car started to over heat.
When I finally got it home I replaced the water pump and topped the system up again and attempted to bleed through, yet again wouldn't bleed, the water runs through all the pipes when I blow down the header tank but won't bleed through normally??
I have spent ages reading through threads and found a common fault to be the 'y' pipe from the header tank to radiator and thermostat housing, so back out I went and tried blowing down it and all 3 ends are clear so I am now really stuck and not sure what to do.
Can anyone shed any light at all on this problem please.
Drove it to work on Thursday morning and going up the motorway at 70mph it started to overheat, whilst it started overheating the heaters blew hot air, I pulled over and let it cool down abit, set off again and it started overheating yet again as I was coming off the motorway but this time before I stopped it returned to the right temperature but still cold heaters, anyway I put a thermostat in it and tried to bleed it up, whilst bleeding it I found the heaters got boiling hot and all was fine until I notice water was slightly leaking out of the header tank cap, now every time I removed the top plastic bung from the thermostat housing nothing came about for around 30 seconds then a gush of water, as the water came out of the bung hole the header tank drained but when I put the bung back in the header tank refilled itself ???
I then put it down to the water pump so I drove the car home steady, on the motorway it never overheated and the heaters were boiling hot but as I left the motorway (around a 15minute drive) the heaters went back to freezing and the car started to over heat.
When I finally got it home I replaced the water pump and topped the system up again and attempted to bleed through, yet again wouldn't bleed, the water runs through all the pipes when I blow down the header tank but won't bleed through normally??
I have spent ages reading through threads and found a common fault to be the 'y' pipe from the header tank to radiator and thermostat housing, so back out I went and tried blowing down it and all 3 ends are clear so I am now really stuck and not sure what to do.
Can anyone shed any light at all on this problem please.