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Old 10-17-2011, 12:15 PM   #1
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330xi alternator question

I need to replace the alternator. The online sites have 90V and 120V. Any reason to get the 90V since its cheaper. I have heated seats/AC/and the typical stuff. Thanks.
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Old 10-17-2011, 12:28 PM   #2
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Location: TEXAS - Circuit of the Americas doing laps with my M5 and coming in for a pit stop.
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Take your Air filter housing out to see which Alternator you do have. Probably need the 120A Bosch or even the 140A Valero Alternator.

Replace it with same one that is in the car now.
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Old 10-17-2011, 01:47 PM   #3
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In addition to determining which brand and amperage you have in your car, be sure to check the type of electrical connector it uses. If it is a 120A Bosch, it will be either rectangular or oval in shape. Pelican Parts carries both versions.

The rectangular connector will look like the one shown clearly in the second photo of this post:

Once you have the intake box off, you should be able to disconnect the plug without issue.

Last edited by alwaysw; 10-17-2011 at 01:50 PM.
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