heater stopped working

[huffdaddy66]

my heater in my 92 325i stopped working its just blowing out cold air now does anybody know wat ould possibly be wrong with it? id much prefer to fix it myself than take it to a garage

[autodrjr]

kinda sounds as iff a blend door is stuck open.... is there any coolant in it.. that could do it too

[Pongs318]

or stock open termostat

[huffdaddy66]

yeah theres lots of coolant i just filled it up and theres a brand new thermostsat in it too replaced that when i bought the car bcuz the heat gauge didnt work