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From Fri Nov 22 16:08:07 1996
From: Dale Beuning <>
Subject: Re: You'd think it was summer!!!
Date: Fri, 22 Nov 1996 16:05:00 -0800 (PST)
Cc: ()

Hi Dan,
My '89 325i runs at the first mark above the blue range, or around 10:00, Our '86 325es always runs straight up, or 12:00. Where is your gauge on the range?

If the car gets over 190F(I think) the low speed fan cuts in, if it gets over 210F, the high speed fan cuts in. The fan always runs on low when the A/C is on. If your fan isn't getting activated by the low-temp thermo-switch on the radiator, I'd suggest replacing it. If the temp isn't getting hot enough to trigger it, I wouldn't worry about it.

When was the last time you flushed the coolant? You could also order the 160F or 170F thermostat and upgrade to that...

The water pump fails by leaking from the weep hole, or the bearing siezes, one of the two! If it's turning, it's pumping, unless the impeller fell off! :-) (Not likely!) When the water pump starts leaking is when you replace it.

Did you bleed the system after changing the thermostat? Be sure to bleed the system with the car at an angle and pointing uphill. Do you know the procedure of adding water/coolant with the bleeder valve open?

hope this helps,

> Dale,
> I really hate to bother you again.
> I am having a terrible time with my car's overheating problem.
> A month or so back, the clutch on the viscous fan seized up so the fan
> was direct-drive... yes, this was terrible. I replaced the clutch, and
> ever since then... I noticed my car likes to run one mark higher. One
> mark is a quarter inch. This is not satisfactory!!! Coolant level is
> correct. I just replaced the water-flow thermostat near the bleeder
> valve with a 180 degree one (only thermostat in stock for my car). The
> guy at the counter said I wouldn't notice the diff. Could the forces of
> the fan-clutch seizing up have damaged my water pump?
> Just to keep my car cool, I have to turn on my A/C to get my aux fan
> working. If you have any suggestions... please help.
> Thanx!
> Dan Keller
> 84' BMW 325e


                       |            Dale Beuning           |
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