1997 BMW 740 heater dosent work

1997 BMW 740
91,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
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
Advertisement
Avatar
DOCHAGERTY
  • CAR REPAIR CONTRIBUTOR
  • 9,606 POSTS
sounds like heater control valves or a plugged core. see if the heater valves are getting warm.
Jan 25, 2008 at 9:35 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.