W124 94 E420 won’t start HELP - Mercedes-Benz Forum
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post #1 of 18 (permalink) Old 10-08-2018, 09:17 PM Thread Starter
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W124 94 E420 won’t start HELP

I have a 94 E420 and I was driving it and noticed my fans were going crazy but temperature was fine. Then as I was pulling onto my street I saw the ABS and ASR light come on and my fuel, oil, and temperature gauge dropped to 0. I parked my car in the driveway and shut it off then put keys back in and turned them and it wouldn't do anything. When the keys are in ignition and turned the battery light, ABS light, and ASR light are the only lights that turn on on the dash. No idea what it could be car was barely warmed up. Oil and coolant levels are fine. Please get back to me with potential issues.
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post #2 of 18 (permalink) Old 10-09-2018, 05:24 AM
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Garage
check your alternator and battery
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post #3 of 18 (permalink) Old 10-09-2018, 09:03 AM
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^This, i.e. check the voltage regulator. Sounds like the brushes are worn. Replace with a new Bosch part if in doubt.
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post #4 of 18 (permalink) Old 10-09-2018, 09:05 AM Thread Starter
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Alternator and battery is fine getting charged still. Where is voltage regulator located?
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^This, i.e. check the voltage regulator. Sounds like the brushes are worn. Replace with a new Bosch part if in doubt.
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post #5 of 18 (permalink) Old 10-09-2018, 09:07 AM
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Inside the alternator.
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post #6 of 18 (permalink) Old 10-09-2018, 11:12 AM
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Battery jump not help?
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post #7 of 18 (permalink) Old 10-09-2018, 04:28 PM Thread Starter
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Would my battery still charge with a bad voltage regulator? And does that explain the lights that are on as well as the gauges dropping?
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Inside the alternator.
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post #8 of 18 (permalink) Old 10-09-2018, 10:38 PM
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A classic dead giveaway for a worn or faulty regulator is the (faint) illumination of the warning lights and/or erratic instrumentation problems while the engine is running.
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post #9 of 18 (permalink) Old 10-10-2018, 07:41 AM Thread Starter
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Is it always faint? Because my lights were as bright as possible.
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A classic dead giveaway for a worn or faulty regulator is the (faint) illumination of the warning lights and/or erratic instrumentation problems while the engine is running.
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post #10 of 18 (permalink) Old 10-10-2018, 08:14 AM
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Have you put a meter on the battery? Once you get it started again, put your meter on the battery. You need no less than 13.8v showing.

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