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sprinkles08, ASE Certified Technician
Category: BMW
Satisfied Customers: 22684
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Electrical gagues weirded out. battery was 11/09 so replaced

Customer Question

electrical gagues weirded out . battery was 11/09 so replaced battery and got it home. Appeared alternator was not putting out charging voltage so ordered and replaced alternator. Still reading right around 12zvolts with the car running. 2003 BMW Z4
JA: Have you tested the battery with a voltmeter? And can you see if it's leaking or not?
Customer: Have replaced battery
JA: Are you fixing your Z4 yourself? What have you tried so far?
Customer: Have replaced battery and alternator
JA: Anything else you want the mechanic to know before I connect you?
Customer: nope
Submitted: 10 months ago.
Category: BMW
Expert:  Steve replied 10 months ago.
what type of alternator did you purchase?
Customer: replied 10 months ago.
Customer: replied 10 months ago.
Exact replacement
Expert:  sprinkles08 replied 10 months ago.

Hello and welcome to JustAnswer!

It's possible that you have a deeper issue with the charging system not allowing the alternator to work, you may have gotten a bad replacement, or there may be a cable or connection issue depending on where you took the charging voltage reading from. The alternator could be charging but current isn't reaching the battery or rest of the vehicle.

Where did the replacement alternator come from?

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