fastlane lists a 70a and an 80a alternator for the '89 300TE. Assuming one has a 70a alt, is there any problem with getting an 80a to replace it?

Looking at all the alt. upgrades that people have done, it seems unlikely, but what you don't know can kill you...

thanks
k

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Cannondale ST600 XL
Redline Monocog 29er
2011 Mini Cooper Clubman
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www.djugurba.com
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You will need a wiring harness (124-543-45-26) $60 to install the 80A alternator. The electrical system will work much better with the extra NEEDED power!!! The 1990 & later cars came with that alternator.

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MERCEDES Benz Master Guild Technician (6 TIMES)
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If your going to change the wiring you may as well go with a 120 or 150 amp alt. It won't cost much more and you will get lots more power.

To go from 70 to 80 amps and change the wiring is a waist, just my 2 cents.


.

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82 Rabbit diesel (first d), 84 Jetta turbo d (300k when sold), 83 240d (305k when sold), 84 F250 6.9d w/Banks turbo(parts truck), 86 F250 6 cyl.gasser(waiting for 6.9d), 84 300d ( 347k Sold 8/04), Y2k New Bettle TDI (185k miles), 95 740IL (wifes), 87 300TD (206k Sold 7/05), 05 Passat TDI Wagon

Can I higher amp Alt. cause any problems (shorter battery life?)

What sort of systems would be happier with a higher amp output?

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-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/831799-post13.html
http://www.peachparts.com/shopforum/831807-post14.html

I put a 125a alternator in my 300CD due to the requirements of the stereo I installed and although it was a tight fit it is fine and there was some rewiring that was necessary however it was minor...Lots of juice now...Whoopee....I seriously doubt you will see any change in battery life...If anything it is better for it as it will keep it charged much easier....

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83 300CDTurbo 307,000
2005 Honda Element 266,000
56 Nash Ambassador Country Club Special 34,000(under restoration presently)

http://www.peachparts.com/shopforum/car-audio-multimedia/125099-123-install-extreme-dynamat.html