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General E46 Forum
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Old 08-26-2015, 06:18 AM   #1
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Join Date: Apr 2014
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Where do I buy a NEW alternator?

So. I think my alt is going out again. Its screeching and howling and pumping out low voltages. My last alternator I got from NAPA. Its still under warrantee but honestly I don't want to buy a refurbished again.

Are they available anywhere brand new? It might be a little more but it'd be nice to not have to replace this every two years.

Any suggestions folks?

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Old 08-26-2015, 06:27 AM   #2
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first you need to figure out if you have a bosch or valeo

napa are one of the better alts from a parts store , used to run em on my hondas

would stick to oe on this

i'm not sure if the belt config allows to interchange the alts,i'd assume both pulleys are in the same location for the belt but the mounting for the alt is diff, seems the valeo would be set back more , i dunno, i'd rather have the bosch pers

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Old 08-26-2015, 07:11 AM   #3
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www.ecstuning.com or Amazon.com tend to have new alternators at reasonable prices.
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 08-26-2015, 07:31 AM   #4
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ZoomZoom provided you with part of required info. The other part requires you to read the label on the back of the alternator. You'll need a mirror and a flashlight. That label will tell you the amperage rating.
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