Question about 2000 BMW 3 Series

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No hot air FROM HEATER inside 2000 318IA

2000 318IA
I HAVE NO HOT AIR COMING OUT FROM MY HEATER .ITS ALWAYS COLD EVEN WHEN I TURN THE KNOB TO HOT (RED)

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  • LSchofield08 Nov 18, 2008

    My heater quit working a few months ago. Since then i have replaced the thermostat and many other parts trying to fix the problem. i hate the bmw dealership in my area, i try not to deal with them as much as possible, could anyone tell me what might be wrong?

  • lisabezodis Dec 16, 2008

    no hot air had the thermostat changed and temperature gauage working

  • Anonymous Feb 12, 2009

    MY CONTROL PANEL HAS POWER AND I THINK IT WORKS FINE I AM JUST GETTING NOTHING FOR AIR HOT OR COLD
    I THINK THE BLOWER IS NO GOOD

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Sounds like the vacuum line , remove hose and you should have heat. the vacuum hose will be under the dash, directly under the radio. also check your coolant, sometimes low coolant levels will cause no heat check easy stuf f first. hope this helps. also there a heat relay switch under the hood, that allows water to flow into your heater core resulting in hot air coming into the cab, have it checked, it up against the firewall on passenger side, where the two heater hoses enter the firewall .

Posted on Nov 05, 2008

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Hi There, If the fan blows only cold air, then you might have a restriction on the heater core. The heater core is like a small radiator inside your dash. The coolant flow through it can be restricted by corrosion. The lack of flow of coolant through the heater core will result in a lack of warm air inside the car. Flushing out the heater core may help. If not, you will have to replace it. I would say though, 80% of the time the cause is just restriction. Get the heater core flushed and I am sure you will get your heat back. MIke

Posted on Nov 05, 2008

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