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Re: Question for all, re: Coolant system (archive)

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Posted by Bear on October 15, 2001 at 07:05:43:

In Reply to: Question for all, re: Coolant system posted by Movado1999 on October 15, 2001 at 06:57:22:


Last week I had all hoses and belts replaced in my 5er. The mechanic, however, forgot to tie the radiator-to-water pump back away from the fan. Hence, the fan sliced a hole in the hose. My 5er overheated, the shop was closed (of course), and I had to replace the hose myself. But after replacing the hose and filling it up with antifreeze, it still overheated. I did not allow the car to redline, but while driving it to the shop, I noticed significant shuddering throughout the front of the car. I figured it was due to the air in the lines. But after the shop bled the system, the shuddering is still there, just not as hard and continuous. My question is, is it possible that they didn't bleed the system thoroughly? Is there still air in the system, and if so, am I in danger of blowing or warping anything?

Thanks in advance, bimmer experts----
Arturo M.
1994 Dinan 525iA

Take a good look at the fan to ensure all blades are still in place and none are bent or out of alignment (hand spin with engine off and see if it turns in a smooth circle and is not wobbling). There is always the possibility the fan was knocked out of alingment after striking the hose. You could of course, remove the fan,start car up, let it idle, and see if the shudder is still there.

Bear



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