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Re: Changing Radiator - 91 750il (archive)
[ Follow Ups ] [ 7-series (E32) Message Board ] [ Msg. Board FAQ ]
Posted by alex lynch on July 22, 2001 at 07:48:08:

In Reply to: Changing Radiator - 91 750il posted by William on July 22, 2001 at 02:36:59:

I tried the Water Wetter product and it made absolutely no difference. The claim of a 20 degree drop in coolant temperature assumes the use of water only in the system. As water is mixed with coolant, this temperature drop decreases. At the BMW recommended mixture of 50/50, the claimed drop is 10 degrees. As Ekkehart pointed out, if the components in your cooling system are operating properly the system will keep the engine at the correct temperature.

Alex


I will be replacing my radiator and I have a few questions:

1. Do I need to bleed the system after I install the new radiator? If so, what is the procedure?
2. To maintain a 50/50 mix of water and antifreeze, how much antifreeze should I refill into the system after installing the new radiator?
3. Redline has a product called Water Wetter which they claim to reduce the water temp. by 20 degrees. Had anyone tried this product and does it really work?




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