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Old 01-21-2005, 05:46 PM
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cscmc1 cscmc1 is offline
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Location: Central IL
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Quote:
Originally Posted by billrei
I just went through a weird experience with the charging system of my 1980 300TD. On Weds on my way to work I found that the radio and then the blinkers were not functioning I thought at first it was a fuse. That night when I went to leave the battery was completely dead. I jumped it and started home. I found if I put on anything more than the headlights everything dimmed out. However the alternator light never came on at any point. When I got home I put the battery on charge and after a half hour there was enough charge to start the motor. I cleaned the contacts on the alternator and found that the belt seemed somewhat loose so I tighten it. I left the charger on to get a full charge. The next morning the battery showed 13.0 volts with the engine off. After starting I got 14.8 volts at about 1,000 rpm. Reving it did not raise the voltage any higher. I drove to work and when I arrived I check the voltage again at 1,000 and it read 14.6 volts. Has anyone had experence with a Bosch built in voltage regulator failing with a high voltage level? I'm going to throw in another alternator I have as a spare and see what happens over the weekend.

Go Patriots!!!

Bill


It must be that time of year, Bill. My 190E did the same thing. At first, with lots of electrical accessories on, I did get a very dim glow from the voltage idiot light in the dash. As it got worse, though, the light stayed off. This all happened over a couple of days. My car died as I coasted into a parking spot at the local pizza place (luckily!), so I got a ride home, pirated the battery from the Mustang, and drove home on the battery alone. I have an alternator on the way to swap that out (it was cheap, so I bought the whole alternator rather than just the voltage regulator).

I'll send you good karma for your repair if you'll do the same for me! Ha ha...

Good luck,

Chris
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1992 300D 2.5T
1980 Euro 300D (sadly, sold)
1998 Jetta TDI, 132K "Rudy"
1974 Triumph TR6
1999 Saab 9-5 wagon (wife's)
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