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2000 BMW 330 heater

Tiny
REESY99
  • MEMBER
  • 2000 BMW 330
  • 6 CYL
  • 2WD
  • MANUAL
  • 106,454 MILES
My cars heatin was hot when driving then it would go cold when stopped have had waterpump changed thermastat an housing and two waterpipes by manifold changed after this heating was all nice and hot but now it gone cold again wot could this be?
Thursday, December 24th, 2009 AT 9:42 AM

2 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Check the coolant level and see if the heater valve is opening up.
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Friday, December 25th, 2009 AT 12:19 AM
Tiny
REESY99
  • MEMBER
  • 4 POSTS
How do I check to see if heater valve opens?
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Friday, December 25th, 2009 AT 5:02 AM

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