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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 11-01-2004, 11:35 AM   #1
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anyone replaced the alternator on their own? how difficult was it???

anyone replaced the alternator on their own? how difficult was it???
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Old 11-01-2004, 12:24 PM   #2
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It's not difficult but you will need the correct tools to take off the fan and belts.

I'd suggest replacing your pullies, tensioners, and belts while you are at it. You can get everything at www.bimmerzone.com or www.bimmerparts.com
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Old 11-01-2004, 01:04 PM   #3
is on da floor
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easy. did it without jacking the car up. just took my intake out and moved my power steering resivor for some clearance removed my belt's and loosend the 2 (or 3, cant remember) bolts holding it in. and the plug.

2001 330i rebuilt from the salvage yard
From start to finish...
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Old 10-24-2005, 09:45 AM   #4
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How do I know to use a 90 Amp or 120 Amp unit?

How do I determine which to use?
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Old 10-24-2005, 11:39 AM   #5
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Originally Posted by sp330i
How do I determine which to use?
I think most us-spec cars come with the 120A model. It is relatively easy to get to the alternator's label to see what you have. If you do have a 90A and are doing aftermarket stereo upgrades, then definitely get the 120A one.
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