Hi,my 1995 bmw 316i only blows cold air.even when the temp control is full at red it blows ice cold air,thanks.rod

i see answers to other questions here except the question asked about no heat in a 325 xi 2001 blower works great fluid is full no leaks,fuses are fine,get a lil heat while at a stand still but as soon as you drive cold air only temp on max 91, engine temp right in the middle takes about 8 mins for temp gauge to reach the middle can anyone help with this..PLEASE !!!!!!

fans are not running

If it seems to blow even hotter air when the A/C is on then yes you have a leaking A/C system. It will still activate because it isn't empty yet. Another possibility is the temp door actuator isn't closing to the cold position. When you turn the fan off or to low, adjust the temp from full hot to full cold (just with key in run position, not with engine running). Look up at the heater control box on the drivers side just above the gas pedal, and you should see a white triangular plastic box. You should hear the actuator move or even see the rod in center of box turning. If not the actuator is faulty.

the temperature door inside (there is two one for each side of car) is possibly broken if you turn the blower on low turn the temp on the passenger side from full hot to full cold or vise versa and listen closely for a clicking or snapping sound if this is heard you have a broken door in side then the dash has to come out the air conditioning has to be discharged of refrigerant which has to be done by a facility with a license. if no noise is heard it could be a control head or a motor but the most likely cause is a broken door.

well this depends on what engine you have, i have a 316i e46 and has a 1.9ltr engine, if that is the same it might be the engine thermostat has stuck and need replacing, thats the good news, the bad news is it could be your head gasket, 1.8ltr engines were prone to blowing the head gasket, look in the rad water bottle to see if there is any oil residue in there, and also take off the oil filler cap to see if its a creamy colour thats your worse senario, but its proberbly just the engine thermostat

If your climate control isn't set to "vent" then your blower valve (on the heater core) is stuck, and should be cleaned/replaced.

The air doors are controlled by actuators that on of them or so may need replacing.

check thermostat.

Let your engine warm up with the rad. cap off and see if the coolant level drops. and make sure your overflow is full. It blows cold air because there is no water getting to the heater core. And it shows a normal(ish) temp because the water needs to be touching the temp. sensor. I really do think there is air in the system and there is not enough coolant but hard to tell from here. Also as with overheating any time make sure to check your oil and look for any coolant as the head gasket seldomly holds together if the motor overheats.

I had the same problem and it was the water pump, loosen the belt and check the pump for excessive play.