What should I do if my Mercedes alternator is low?
Prior to attempting Mercedes alternator troubleshooting, the battery of the car needs to be charged, tested and replaced if necessary. In case the battery is faulty, the Mercedes alternator output is automatically low.
Is it easy to remove an alternator from an engine?
Since the typical alternator is bolted directly to the outside of the engine block, removing and replacing one is relatively simple in terms of labor. If your engine is equipped with a serpentine accessory belt, you’ll just need to release the pressure on the belt tensioner and then remove the belt.
What should I do if my alternator is hot?
Really! First and most importantly: disconnect the battery. There may be several wires or just one wire on your alternator, but rest assured that one of them is hot. If you don’t disconnect the battery, you’re very likely to end up grounding a live wire during the process.
How can you tell when it’s time to replace your alternator?
If it has specific voltage settings, you want it to be able to test up to at least 20 volts. Before you turn the car on at all, look for a large red wiring attached to a terminal on the back of the alternator. Touch the red positive lead from the multimeter to the bolt on that terminal.
How much does it cost to replace a Mercedes alternator?
The cost of an original Mercedes Benz alternator would be over $500 however, most shops may allow a discount up to the $350 range. This is because the cost of a re-manufactured Bosch alternator is approximately $350. The labor hours involved to test the charging system and to replace the Mercedes alternator would be approximately 1.5 hours.
If it has specific voltage settings, you want it to be able to test up to at least 20 volts. Before you turn the car on at all, look for a large red wiring attached to a terminal on the back of the alternator. Touch the red positive lead from the multimeter to the bolt on that terminal.
What should the voltage be on a Mercedes alternator?
The role of the Mercedes alternator is to charge the battery with 14 volts. This voltage should not drop below 13.5 volts even if there are additional components using the Mercedes alternator. The voltage regulator on the Mercedes Benz alternator could be old and therefore malfunctioning when the engine is started.
How do you remove an alternator from a car?
See the close up picture below. Unplug the connector that goes into the back of the alternator. Pres on the tab and pull it away from the alternator. Remove the two bolts that hold the alternator in place using the Female E Torx sockets we listed on the required tools section above. Remove the alternator.