2009 Mini Cooper Alternator Question

 Created by: CTdave
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 Posted: Jul 29, 2019 04:14AM
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Quote:
Originally Posted by CTdave

I am having charging issues with my 2009 mini cooper hatchback.  Before starting the car, the voltage at the battery is 12.7 v.  Once the engine is running it drops to 12.5 v and continues to drop.

Pulled the alternator.  The connector has two wires in it, and the alternator itself has two posts for those wires.  The new alternator has the same hole alignments for mounting, and the same connector.  The issue is the new alternator itself only has one post for one of the two wires.  

My thought was that perhaps the 'missing post' on the new alternator is a ground wire and that they eliminated it.

Any thoughts?

Thanks in advance.

Dave 

The 2009 MINI Cooper came with either a 120 amp or 150 amp alternator, perhaps your supplier sold you the wrong one? You may be able to tell the difference from the diagrams on our product page here - although the diagrams are not always 100% accurate.

 Posted: Jul 26, 2019 05:49AM
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You should be able to get a direct replacement, they gave you the wrong one, go back or to another store

 Posted: Jul 25, 2019 07:38PM
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Take it to your local BMW MINI dealership..hope you  are sitting down. for the PRICE..

 Posted: Jul 25, 2019 06:27PM
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I am having charging issues with my 2009 mini cooper hatchback.  Before starting the car, the voltage at the battery is 12.7 v.  Once the engine is running it drops to 12.5 v and continues to drop.

Pulled the alternator.  The connector has two wires in it, and the alternator itself has two posts for those wires.  The new alternator has the same hole alignments for mounting, and the same connector.  The issue is the new alternator itself only has one post for one of the two wires.  

My thought was that perhaps the 'missing post' on the new alternator is a ground wire and that they eliminated it.

Any thoughts?

Thanks in advance.

Dave