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X5 E53 (1999 - 2006)
The X5 SAV Forum

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  #1  
Old 10-06-2015, 06:44 PM
blackX52004 blackX52004 is offline
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Location: Philly
 
Join Date: Sep 2015
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Mein Auto: Bmw X5
Cool Alternator Replacement 2004 Bmw X5 4.4

Thanks for all that helped on my water pump issue, know before I put the water pump back in I want to replace the alternator while everything is out. Problem is trying to figure out the best way to get to all the bolts. I have air cooled not water cooled basically the average alternator now can I remove the driver side wheel cover to get to the bottom bolts on the alternator? Please send me some insight on this or a thread that give detailed directions. Thanks again
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  #2  
Old 10-07-2015, 12:40 PM
torontox5 torontox5 is offline
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Location: Toronto
 
Join Date: May 2011
Posts: 159
Mein Auto: 20005 BMW X5
You may check my posting HIGH ALTERNATOR VOLTAGE. I can help you as I had do it twice within a week. You only need to remove the panel under the engine. It is actually not bad. You will need Two different torx bits to release the belt and to remove idler pulleys. Not sure of the sizes
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  #3  
Old 10-07-2015, 12:45 PM
blackX52004 blackX52004 is offline
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Thanks I will take a look when I get home
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  #4  
Old 10-08-2015, 01:50 AM
leejim leejim is offline
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Location: New Zealand
 
Join Date: May 2013
Posts: 92
Mein Auto: 2005 X5 4.4 V8
Alternator replacement

Hi best to remove the electric fan and shroud easy to do gives you more room, disconnect battery first. Leave wires on alternator until you have the bolts out and can pull it forward as you cant get to the main nut on terminal. You dont need to undo drive belt idler bolts just put the torx socket in the spring loaded tensioner and pull it around holding the bar with one hand then take the belt of with the other. Might pay to do a little drawing of where the belt goes round all the pulleys first so you know when refitting. Once bolts out alternator pulls forward ( a bit tight) then bring it out up top. Might pay to just undo power steer reservoir bolts and tie it out of the way a bit but you dont need to undo messy hoses. Put a bit of grease on the mount points when refitting as it is a tight fit so it will help it slide in to situ easier. Good luck !!
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  #5  
Old 10-08-2015, 06:00 AM
blackX52004 blackX52004 is offline
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Great reply thanks a lot!
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  #6  
Old 09-09-2016, 04:12 PM
FREE100KSECRET FREE100KSECRET is offline
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Location: NY
 
Join Date: Feb 2014
Posts: 52
Mein Auto: 545i
Is it common to have alternator seize up? I have water cooled, so it was shocking to think these can seize up. I was hoping it was just the regulator, and it looks like you can change it without removing whole unit. Nothing is easy on these vehicles. lol
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  #7  
Old 09-09-2016, 08:34 PM
leejim leejim is offline
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Location: New Zealand
 
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Mein Auto: 2005 X5 4.4 V8
Not common for them to seize up. Usually caused by failed bearings not the water cooling! If you have the later model car 04 an on they have the air cooled alternator not the complicated water cooled job.
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