Why is my Mercedes Benz alternator not working?

Why is my Mercedes Benz alternator not working?

Basically a spring applies tension to a pulley which keeps the belt at the right tension. So I don’t think you’re having Alternator problems. I think your tensioner pulley bearing seized (age, km, or sometimes a dust/grease seal giving out and the bearing looses its lube) and the belt kept sliding on the pulley until it melted or destroyed itself.

What causes an alternator to go over base voltage?

If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. Other potential problems are a faulty voltage regulator or a problem in the charging system wiring.

Is the alternator at the heart of the charging system?

Dan Ferrell writes about do-it-yourself car maintenance and repair. He has certifications in automation and control technology. The alternator is at the heart of the charging system of your vehicle. Alternator problems and charging system problems can affect your vehicle in different ways.

How to know if your alternator is working properly?

1 Check the drive belt or serpentine belt. Look for signs of wear or damage like cuts, shiny spots or missing chunks under the belt. 2 Also, check the belt tensioner for proper operation and damage. It should rotate freely. 3 Make sure the alternator is properly mounted. 4 Check the alternator for noises. …

Basically a spring applies tension to a pulley which keeps the belt at the right tension. So I don’t think you’re having Alternator problems. I think your tensioner pulley bearing seized (age, km, or sometimes a dust/grease seal giving out and the bearing looses its lube) and the belt kept sliding on the pulley until it melted or destroyed itself.

What to do if your alternator wont start?

Alternator problems? Do a Fusible link test first If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

Why did my alternator catch on fire the second time?

First time 40,000 kilometers, second time 85,000 kilometers. The second time the alternator caught on fire with smoke, first time had the electrical smell but no smoke. MB can offer no reason why 2 alternators. Recently at 97,000 kilometers had an oil leak, replaced oil neck $69 part.

What causes battery alternator light to come on?

Problem started last week with the “Battery Alternator visit workshop” light coming on. Taken to the garage for diagnosis and I’m told the “clutch pulley” has seized and in turn has snapped the belt.