Lack of heat from heater

[Dieselweasel0]

Hi, need a bit of help with cabin heating, I can put the controls to hot on both sides but I get a barely feelable warmth, engine temp never seems to get past a quarter on the gauge.
It's been bled but still no change, even putting a/c on in heating makes no difference, it's a 300tdi 1995, thanks

 

[flat]

maybe your thermostat is stuck open, preventing the engine getting to temp

 

[timtheenchanteruk]

maybe your thermostat is stuck open, preventing the engine getting to temp

+1

 

[rikkim]

hi mine was exactly the same get new thermostat a good flush out with a hose up the pipes a good summer/winter coolent and am sure will be sorted mine has good heater now

 

[adedance]

Mine was the same due to heating matrix full of brown crap! Undo both top and bottom hoses to matrix and attach a hosepipe to one side leave to run for a few minutes and do on the other pipe aswell. My heating was cold for 2 month's prior to this lol