What should mercedes battery voltage be?
A: A fully charged battery should measure around 12.6 volts or above. When the engine is running, your battery should clock in at somewhere between 13.7 and 14.7 volts.
What should the battery voltage be in a Mercedes Benz?
I know that if the battery voltage is 12.1v it is 50% discharged, and at 11.7v it is fully discharged. However, the alternator will maintain the terminal voltage at 14.2 v while the engine is running. The starter may still work with the battery at 10.0v – 11.0v.
What causes battery to die on Mercedes medic?
A defective electrical system, Control Unit or a fault on the CAN Bus (Controller Area Network) are also causes that can cause your Mercedes-Battery battery to die. To troubleshoot the current draw, you need a multimeter that can perform current reading.
What causes an ECU fault on a Mercedes a class?
Mercedes A Class ECU & Air Mass/Flow Meter This ECU is a very common fault for the Mercedes A Class, it causes the engine management light to come on and fault code for the Air Mass/Flow Meter to be stored in the ECU’s memory. This fault can cause the engine to run rough and idle poorly.
What causes ABS warning light on Mercedes W204?
This fault can cause the engine to run rough and idle poorly. Common ABS pump and module failure for C-Class W204 range will cause the ABS warning light to illuminate and store fault codes for ‘internal fault’
Are there any problems with Mercedes Benz batteries?
The problem with the inexpensive batteries is that you may eventually start experiencing electrical problems such as ESP or AirBag warning lights on the dashboard. These batteries may continue to crank and start the engine just fine but they don’t perform very well when they are under frequent high power demands.
Which is the cheapest battery for a Mercedes Benz?
While the Exide is not the cheapest battery that you can find for Mercedes-Benz, it is a good compromise of performance, price, and durability. The OEM batteries installed in most Mercedes-Benz cars are also AGM batteries.
When to replace battery in Mercedes medic medic?
Make sure you have a fully charged battery. If your battery is over 6 years old, you should consider replacing it to avoid further electrical nightmares. You can save on the cost of the battery by purchasing it online. For example, see this list of AGM Group 94 batteries for Mercedes-Benz on Amazon. Turn off the lights.
Why does my Mercedes-Benz battery keep draining?
You try to start your Mercedes-Benz and the car is either completely dead or this happens: Battery drains happen when electronic equipment (consumer units) are constantly drawing current from the battery while the car is parked. One simple example is when lights are left on overnight. But it’s not always as simple as that.