-------- Original Message --------
| Subject: | Interesting alternator problem |
|---|---|
| Date: | Tue, 11 Jan 2011 21:08:06 -0500 |
| From: | Alan Boucher <alstheone@verizon.net> |
| To: | diesel_mercedesl@yahoogroups.com |
My 83 300D has developed an interesting problem. After 2 or three days of normal day and evening driving the battery dies. The car is in NY and is driven 15 to 35 miles at a time. The battery is approx. 1 Yr old. Now the red light is coming on. with no load on the electrical system, clean battery and ground terminals, and a fully charged battery, it does dim somewhat with increasinng speed. The local Autozone tested the alternator in the car and a spare and said that both were good. I swapped out the alternator with the spare, one of my favorite jobs on this car, with the same result. I checked the brushes in the voltage regulator and cleaned the commutators on the spare before I put it in. The only thing that I can't verify is that the voltage regulator is working properly. My next step is to change the voltage regulator. I have another alternator that was working when the car was wrecked, but its under a couple of feet of snow. Does anyone have any suggestions?
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