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Old 11-29-2010, 08:09 PM
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bluebee bluebee is offline
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Location: San Jose, California
Join Date: Mar 2008
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Mein Auto: 02 BMW 525i M54 auto 130K
Originally Posted by 540iman View Post
Steel band is likely a 400 series stainles steel. 300 series stainless, which is used for flatware, knives, pots and pans, etc.
Hi Bill,
I think I may have confused the description a bit.

The copper-colored bent "steel band" that I picked up off a cardboard box (it was a steel staple in a refrigerator box) was just a piece of steel that I used to prove that the circular disc in the center of the white float was slightly magnetic.

Here's a picture of the float mechanism showing the magnetic disc about in the center of that float. That magnetic disc, when it settles over the tip of the coolant level sensor, magnetically triggers "something" somehow.

How do you think the level sensor works when triggered magnetically?

Originally Posted by 540iman View Post
My plastic bobber must have separated from the float
For the record, Bill is referring to this:
- Check Coolant warning-float 2" above filler neck???
- Check coolant light, coolant is tad low, but "bobber is full up
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