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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 11-15-2012, 04:12 PM
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microswitch microswitch is offline
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Location: Los Angeles
 
Join Date: Dec 2009
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Mein Auto: 2006 5251
New Alternator

My alternator went out last Monday. At first I was not sure, the battery icon was on and off intermittently, never steady. I was debating if I could last till the weekend but then i figured.. better not. Pulled the car in the drive way called work to tell them I was going to be late and called O' Reilly... $ 209.00 rebuilt ...
I did not have to remove anything other than the air filter box and move the steering pump reservoir. The job took a whole 2:00 including the trip to the store to test the old alternator and grab the new one.
I was at work at 9:45 AM
Car been running ok since.

I know I should have done the bearing, regulator and brush myself but did not prepare for it and I got life time warranty so in the case it fails again well I can say I got a bit of practice..
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Last edited by microswitch; 11-15-2012 at 04:14 PM.
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  #2  
Old 11-15-2012, 04:26 PM
edjack edjack is offline
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Mein Auto: '97 540i 6 speed
money = time.
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Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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  #3  
Old 11-24-2012, 02:49 PM
fotoholt fotoholt is offline
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Location: Omaha, NE
 
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Mein Auto: 540i
Liquid cooled

Isn't the Alternator on a E39 540i liquid cooled? Did you need to drain the coolant?
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Old 11-24-2012, 03:06 PM
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Fudman Fudman is online now
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Quote:
Originally Posted by fotoholt View Post
Isn't the Alternator on a E39 540i liquid cooled? Did you need to drain the coolant?
Yes, but the OP has the 2.5 I6. Edlack has the V8.
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Old 11-24-2012, 03:45 PM
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Coochie_Bandit Coochie_Bandit is offline
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Mein Auto: 540
Quote:
Originally Posted by fotoholt View Post
Isn't the Alternator on a E39 540i liquid cooled? Did you need to drain the coolant?
Drain?? Pffft.

I didnt drain. Just disconnected the small hose going into the alt jacket. Caught mostly everything underneath. Just let the engine cool of substantially before going this route.

Ask me how I know? Smh.
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Old 11-24-2012, 03:55 PM
mbell666 mbell666 is offline
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Mein Auto: e39 2002 540i6
And its only the later 540i that have water cooled alterntors
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An e39 is like a beautiful wife, needs constant attention, lots of money, lets you down at the worse times but you’d never be without it.
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