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DISCUSSION => General Topics => Topic started by: usaexec on July 22, 2010, 10:52:46 AM

Title: Coolant loss via overflow
Post by: usaexec on July 22, 2010, 10:52:46 AM

Recently I have started to lose some coolant in my 1998 E36 Convertable.  They is no leak, the radiator, water pump & all hoses are new.

What I am finding is after I stop a small amount of fluid is condensing out the overflow tube.  Not much, but it adds up so I have to top off ever couple of days.  

The temp gauge is working and read fine.

Any suggestions?

Title: Coolant loss via overflow
Post by: tjts1 on July 22, 2010, 12:04:57 PM

Fix it.
http://www.m42club.com/forums/showpost.php?p=25156&postcount=23

Title: Coolant loss via overflow
Post by: jscribble on July 22, 2010, 12:09:32 PM

Shouldn't that system be closed? You have an external tank, correct?

I'm totally unfamiliar with your coolant set up, and without a model, I can't reference anything for you.

tjts link will be helpful if you have an integrated tank like my e30 does.

Title: Coolant loss via overflow
Post by: tjts1 on July 22, 2010, 06:04:12 PM

I'm pretty sure all E36 cars had the built in reservoir. The E30/M42 was the first car they used it on as far as I know.

Title: Coolant loss via overflow
Post by: jscribble on July 22, 2010, 09:29:46 PM

I stand corrected.

Title: Coolant loss via overflow
Post by: WilliamJ on September 14, 2012, 01:39:15 AM

Quote

Recently I have started to lose some coolant system or recovery tank (http://www.drivewire.com/part/cooling-system/coolant-recovery-tank/) in my 1998 E36 Convertable. They is no leak, the radiator, water pump & all hoses are new.

What I am finding is after I stop a small amount of fluid is condensing out the overflow tube. Not much, but it adds up so I have to top off ever couple of days.

The temp gauge is working and read fine.

Any suggestions?

if you have a problem on your coolant overflow or tank, you could try checking your radiator cap. It is actually sealed and caps are junk. When you get to have a new one always push down hard, like screwing it in or you will have to broke.