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Old 12-05-2012, 09:19 AM
Supercourse Supercourse is offline
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Location: British Columbia, Canada
 
Join Date: Feb 2008
Posts: 3,068
Mein Auto: 2004 X3 2.5i
Quote:
Originally Posted by awdrev View Post
..... I think taking the mechanical fan will be a pain.....

Now, as I said I just got the car and thought about the transmission ....
The engine cooling fan is electric - quite easy to remove by releasing a few plastic clips from what I have read.

Brown spots in coolant be from someone in the past topping off with green coolant.
Just a guess, but doing a good flush and fill should be the first priority after replacing the expansion tank and its A/T thermostat.

Personally, I wouldn't stress over the A/T lifetime fluid if it has never been changed.

Water pumps and thermostats appear to last longer in the E83 than they do in the E46, so not too much risk in delaying that if no symptoms.

Hoses are definitely worth replacing if any signs of degradation after 9 years and 100K miles.

If the vehicle has not had the best of care under the previous owner(s) may be best to err on the side of caution though.

The first thing I would do is a transfer case fluid replacement, even before the coolant repair.
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