How many volts should a battery test?
Fully charged automotive batteries should measure at 12.6 volts or above. When the engine is running, this measurement should be 13.7 to 14.7 volts. If you don’t have a multimeter to tell you the voltage of your battery, you can do a test of your electrical system by starting the car and turning on the headlights.
Why is my Mercedes Benz battery not working?
If you pressed the unlock button on the door handle the instrument cluster would state “Key not recognized”. The next problem that this car developed was the battery dying when the car was parked for an extended period of time or parked overnight. It was confirmed that no lights were left on.
What should current voltage be on Mercedes Benz battery?
Press the R button three times. The current voltage level will now be shown. Once you start your vehicle, the voltage level should read between 13.8 volts and 14.8 volts. A reading in this range indicates your alternator is correctly charging your batteries, and your batteries are holding the charge.
Do you need maintenance on a Mercedes AMG battery?
This article applies to the Mercedes-Benz E-Class and E-Class AMG (2002-2009). The Mercedes-Benz E-Class batteries do not require maintenance as they are sealed units.
Are there any electrical problems with a Mercedes Benz?
Recently we have been working on a Mercedes-Benz with some major and unexplainable electrical issues. The problem started with the Keyless Go feature. The key would unlock the car via keyfob and start it by inserting the key in the ignition. But Keyless Go stopped working.
Why does my Mercedes Benz W204 not start?
The loud clicking sound means that the ignition system is being triggered on, but there is no power to crank the engine. Depending on the age and condition of the battery, you must replace or just jump start your battery. Figure 1. The battery in the w204 is located by the circle where the red cover is.
Where is the battery located in a Mercedes Benz W204?
The battery in the w204 is located by the circle where the red cover is. If it turns out it’s not the battery, then move to the next step. (Related Article: How to Jump Start Your Car – MBWorld.org) It could be faulty.
If you pressed the unlock button on the door handle the instrument cluster would state “Key not recognized”. The next problem that this car developed was the battery dying when the car was parked for an extended period of time or parked overnight. It was confirmed that no lights were left on.
When do I get battery / alternator VISIT WORKSHOP warning?
Typically you get BATTERY/ALTERNATOR VISIT WORKSHOP warning when the electrical system voltage in the car is below 12.6 volt. When the car is running the alternator produces electricity and the voltage should be above 13.5 volt.