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Is there a fresh air intake lever

Tiny
RAGNAROKSYN90
  • MEMBER
  • 1997 BMW 316
  • 150,000 MILES
My heat is blowing cold air from the vents and there is freon in lines
Monday, February 6th, 2012 AT 8:46 AM

3 Replies

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Freon in what lines? The AC lines? There should be a temperature control lever on the dash.
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Monday, February 6th, 2012 AT 8:55 AM
Tiny
RAGNAROKSYN90
  • MEMBER
  • 2 POSTS
Yes the hi pressure and low pressure lines and it is on hi heat and its still cold air blowing out
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Monday, February 6th, 2012 AT 9:04 AM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
That's a good thing then. Freon is supposed to be there.

Start the engine and get it up to operating temperature. Turn the heater on full blast hot. Open the hood and feel the two heater hoses feeding the heater core. They should both be hot. If not, suspect a thermostat or plugged heater core. If they are, suspect blend doors in the airbox. Watch the actuators on the airbox as you move the temperature control back and forth slowly.
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Monday, February 6th, 2012 AT 6:31 PM

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