70 or 80 Amp Alternator?
 

Could someone explain me the difference between a 70 and a 80 Amp Alternator. Everyone sells the 80Amp cheaper than 70Amp. I am in a market for one on my 1987 260E and can't figure out which one to buy.

Thanks.

call dealer with your VIN, they will tell you.

The 1986 thru 1989 used the 70A alt. The 1990 & later uses the 80A. You can install the 80A on earlier cars with the later wiring harness MB part # 124-543-45-26 (list $66.) The 80A works much better esp/w hi-power stereo systems OR in hot climates where the A/C runs all of the time.