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Old 09-12-2012, 07:38 AM
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Scott ZHP Scott ZHP is offline
We want the Lion!
Location: PA, USA
 
Join Date: Jul 2003
Posts: 7,534
Mein Auto: 03 ZHP, 01 X5, 73 MGB
Quote:
Originally Posted by Primcast View Post
I don't have to take the fan off, do I? cos I was only going to change the Expantion tank and the sensors. I will only come back to the Aux Fan if after charging the AC, the fan still does not come on. Isn't that the plan?
There are TWO FANS. The engine driven cooling fan and the aux fan. One is mechanical (engine), the other is electrical (aux).

While you're replacing the exp tank, I am suggesting you replace the water pump. Cooling systems are a weakness of the M54 engine. Pumps are good for about 75K miles. If you are running the original pump, NOW is the time to replace it.

In order to replace it, you need to remove the ENGINE FAN, which is attached to the nose of the water pump via a viscous clutch.
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Quote:
Originally Posted by Fast Bob View Post
JUST...LOOK...UNDER...THE...CAR....for Chrissakes....it`s like checking to see if a dog is male or female....
Quote:
Originally Posted by smolck View Post
A bimmer with forced induction should have a proper manual gearbox. Anything less is like french kissing your sister.
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