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Originally Posted by stevebfl
Anything is possible, but the no brainer is to replace the 70A with a 80A, that is used on a 90- 300E. I think the number is AL66x and it should even be a few pennies cheaper.
So you say a 15% increase isn't worth foolin with, well the rating is only a part of the story. The 80A alternator is a different design and puts out about 60A at idle while the 70A one puts out about 30.
Its a straight bolt up deal and if you aren't up to changing the connector ends a new harness can be bought from MB for around $50 last I checked. The harness goes from the alt to a connector buss by the battery, simple to change. We used to change the harness but recently we aquired proper terminals and just solder up the new ends. About the same time as changing the harness. If you don't get proper ends I would go for the factory harness.
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Thanks Steve. I didn't realize how much of a difference the 80A is over the 70A. The proper terminals you mentioned are they a Mercedes part or aftermarket? I called the dealer today and they quoted me $200 Canadian for teh harness
. Big difference from $50.
Did you check out post #8? Do you think that the 150A is not as easy as switching the pulley and connections like GSXR says or do you forsee any potential problems? It will cost me around the same money to get which ever alternator I chose in the end, so why not go for the best.