G37S Alternator Died after 55k km

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mkotik
Posts: 2
Joined: Tue May 18, 2021 12:23 pm
Car: 2011 Infiniti G37 S Convertible

G37S Alternator Died after 55k km

Postby mkotik » Tue May 18, 2021 5:29 pm

My 2011 G37S died today. 10 years old but only 55k km.
Does it make sense? Seems like extremely early dead to me...
Thanks.


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VStar650CL
Posts: 2015
Joined: Thu Nov 12, 2020 1:25 pm
Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

Re: G37S Alternator Died after 55k km

Postby VStar650CL » Tue May 18, 2021 5:54 pm

Are you sure it's a dead alternator and not the "smart charging" being stupid?

mkotik
Posts: 2
Joined: Tue May 18, 2021 12:23 pm
Car: 2011 Infiniti G37 S Convertible

Re: G37S Alternator Died after 55k km

Postby mkotik » Tue May 18, 2021 6:08 pm

I don't even know what you mean:)

That's what they told me at the auto shop.

User avatar
VStar650CL
Posts: 2015
Joined: Thu Nov 12, 2020 1:25 pm
Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

Re: G37S Alternator Died after 55k km

Postby VStar650CL » Tue May 18, 2021 6:30 pm

Your ride has an alternator controlled externally by the BCM via the IPDM, it doesn't use internal regulation. Those "smart" external systems are infamous for stupid behavior that ruins batteries from chronic under-charging. If the alternator has low output and not no output, they need to check it.

Not that the alternator couldn't have gone bad, the sort of bushings used in alternator construction are usually just as unhappy with disuse as lots of use. With 5K miles a year, you may find issues with various other seals and bearings as time goes on.


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