1997 BMW 740 heater dosent work

1997 BMW 740
91,000 MILES • V8 • 2WD • AUTOMATIC
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JOSH19
  • MEMBER
  • 1 POST
hi i have a bmw 740il and the heater blows cold air what could it be
Jan 20, 2008 at 10:38 PM
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DOCHAGERTY
  • ✓ASE Certified Mechanic
  • 9,606 POSTS
  • ASE Certified Mechanic
sounds like heater control valves or a plugged core. see if the heater valves are getting warm.
Jan 25, 2008 at 9:35 AM
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