NO HEAT - Mercedes ML 270 cdi 2002 w163

  mercedes/m-class/1998-2005

Hi
The car has been stood for over 6 weeks whilst i was recovering from my operation
When I finally started it, i eventually realised that there was NO heat coming in the car !
The engine temperature was sitting at less than 10 degrees all the time, the dashboard was at... -2.0 to 3.0 degrees ......so if i was driving it would be less than 2.0, and if i was stationery with the engine running it may go up to 3.0 degrees... (and that is still... COLD)
It was suggested by someone that my Thermostat is stuck in the open position, and is faulty and would need replacing
I have replaced the thermostat and the engine temperature is now always around 89 degrees (approximately), so this means that my previous thermostat WAS in fact faulty, and the old thermostat had a rattle coming from it too.
HOWEVER....However, although the engine temperature has now gone up to > 87 degrees...... nevertheless i am not getting any heat in the car, even though I have extensively bled the cooling system after flushing it !....
Please someone help...we are freezing !

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