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No need to check at the alternator if the battery is showing 13.8 while running. If it shows 13.8v with the engine off I'd get a new multimeter. I suppose that you could get a battery to sustain 13.8v for a breif period right after a hard charging. If you get 13.8 from the battery without running, turn the headlights on till the voltage drops to 12.5v or so when the lights are turned off and start the engine and try again.
Unplug the controller to disable the alarm, I don't remember where it is on 124. I'm sure it is in the archives.
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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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