M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

2008 ML-320 CDI Alternator

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Old 01-31-2018, 09:03 AM
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ML-320 2008
2008 ML-320 CDI Alternator

Well the bearing in my alternator is whining like crazy only a matter of time before I'm on the side of the road. I need recommendations I looked on Amazon which only shows two options while I don't want the cheapest thing out there I don't want to spend 1,000.00 on one either and with 175,000 miles on it I'm wondering if I should go ahead and replace the water pump while I have the whole things apart also have some oil seapage so I'll be tackling that is well.

Looking for suggestions and recommendations. Thank you.

P.S. Apparently this vehicle lists 2 different alternators depending on chassis number one is 180a the other is 220a both have different connectors so depending when vehicle came off line depends on which is has. I know that mine has the 180a the question is now is the 220a an upgrade or do I stick with apples to apples?

Last edited by user 4778466; 01-31-2018 at 09:24 AM.
Old 01-31-2018, 01:25 PM
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2002 ML 320 & 2006 ML500
Post your full vin#.
Old 01-31-2018, 02:27 PM
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ML-320 2008
4JGBB22E58A385113
Old 02-01-2018, 02:26 AM
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2002 ML 320 & 2006 ML500

Here is the part number for the Valeo alternator and a cop of your DATA Card.
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Old 02-25-2018, 02:58 PM
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ML-320 2008
As it truns out

Only the pulley needs to be replaced its called a dcoupler pulley requires a special tool the one on the water pump can be replaced independently as well.

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