Coolant Question - BMW Forum -

3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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post #1 of 2 (permalink) Old 03-06-2004, 10:08 AM Thread Starter
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charles01 is an unknown quantity at this point
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I have a BMW 316i 1990 (old shape).

The radiator bleed screw thread broke without being touched & I lost some coolant.

I've put a new official BMW Bleed screw back in. I've needed to top up the coolant twice since. The engine temperature gauge reading is normal & there is plenty of heat blowing from the cabin heater. There is no sign of any coolant leak now.

Does the need for me to top up the coolant again mean that there is air in the system & that it should be bled?

Secondly, if I needed to bleed the coolant - do I remove the bleed screw with a cold engine, let the engine heat up, put the cabin heater on max. heat & blower on, & then watch for air bubbles from the bleed screw?

Thanks, Charles.
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post #2 of 2 (permalink) Old 03-06-2004, 06:57 PM
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KC Ron Carter is an unknown quantity at this point
You have the bleeding procedure exactly as needed.

But unless there is a reason why bleed it.

Do not fix what is not broken.


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