|
Step one is always to replace the regulator. It's the primary failure mode, especially for your symptoms. It's also an easier job and much less expensive than replacing the entire alternator. [If you replace the regulator, be sure to keep the old regulator for awhile.] If that fixes the problem, fine. If not, go on to step two.
Step two is to get a new (rebuilt?) alternator, which will come with a new regulator, but there will be a core charge that you'll get back when you turn in your old alternator. Before you do that, remove the new regulator that you bought in step one and put back the old regulator that you removed and kept.
Even if the old regulator is good, its brushes will be worn down. Keep the new regulator as a spare. Put it away in the car's spare tire well with the other parts and tools you carry. Then you'll be prepared to do an on-the-road repair should the need ever arise.
Jeremy
__________________
"Buster" in the '95
Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
|