1990 BMW 525i

1990 BMW 525I
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WRANGLER09
  • MEMBER
  • 1 POST
1990 BMW 525i

i just want to know how to bleed the system of air when i am refilling my radiator
Aug 29, 2009 at 1:48 PM
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DOCHAGERTY
  • ✓Experienced Mechanic
  • 9,606 POSTS
There is a screw in the top of the thermostat housing that is the air bleeder screw. Open it and fill the system until it comes out of that hole without air bubbles and then tighten the screw and fill the system full, start the car and turn on the heater all the way. Let it cool and recheck it.
Aug 29, 2009 at 4:22 PM
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