I have a radiator without a radiator cap.

Tiny
ANONYMOUS
  • MEMBER
  • 1985 BMW 325
  • 300,000 MILES
I have a radiator without a radiator cap reservoir, and I am stumped on how to fill it with coolant after flushing the system and replacing some hoses and the fan.

Again I just need to know how to fill the radiator with coolant when it has no radiator cap to poor into.
Wednesday, February 13th, 2013 AT 8:57 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,144 POSTS
There is a small plug on the top of the radiator on one of the tanks, remove the cap and fill it from there. There might be a bleeder on the top of the thermostat housing that will needs to be opened.

Please let us know what you find so it will help others.

Best, Ken
Was this
answer
helpful?
Yes
No
-1
Wednesday, February 15th, 2017 AT 3:00 PM

Please login or register to post a reply.

Related Radiator Cap Content

Radiator Cap Replacement
VIDEO
Radiator Cap Replacement
Instructional repair video
VIEW MORE