Unknown alternator part? - Mercedes-Benz Forum

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post #1 of 5 (permalink) Old 07-13-2011, 05:46 PM Thread Starter
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Unknown alternator part?

This part is connected to/ coming out of the wire harness to the alternator. It has a blue wire with a white stripe connected to it.

Anyone have an idea what this heat sink like thing is, I found it unconnected and just floating around?

Could it possibly be related to my constant red battery light?

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post #2 of 5 (permalink) Old 07-15-2011, 11:20 AM Thread Starter
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Anybody know what this is?

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post #3 of 5 (permalink) Old 07-15-2011, 07:06 PM
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Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
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It would be a great help if we knew the year and model of your car. Please update your profile or add some text and a few more pics.

If the red alternator light is always on, the alternator is not charging and the car is running on the battery.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant

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post #4 of 5 (permalink) Old 07-15-2011, 08:01 PM Thread Starter
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Ah shoot, i am sorry, i thought i had completed my signature on this forum.

I have a 1976 300D w115 chassis.

I just replaced the old alternator today. I got one on amazon, $68 shipped to my door.
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post #5 of 5 (permalink) Old 07-16-2011, 03:16 PM
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Vehicle: 1989 560SEC AMG Euro / 1997 S500 / 1991 500 SL Euro / 1991 500 SL Japan
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Here is the wiring diagram for your year and model W115 and a guide on how to read it.
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- Steve
1989 560SEC AMG Euro / 1990 300SE Euro / 1991 500SL Japan / 1997 S500 USA
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