With winter weather coming, automobiles tend to suffer, the most basic case is to have troubles starting your Mercedes Classe M early in the day with very low temperatures. Generally speaking this is related to problems recharging the battery of your Mercedes Classe M . There are some factors that can show you why your battery does not recharge correctly anymore, and today we will try to help you to fix this problem that can prevent you from using your motor vehicle. To achieve this, first we will show you how recharging your car battery functions, then the different problems of recharging a Mercedes Classe M, and at last how to recharge an empty car battery.

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How does recharging the battery of a Mercedes Classe M work?

Before we detail the different complications of recharging the battery on a Mercedes Classe M , we will show you to you how its recharging system functions so that you can understand the complications you are struggling with. A motor vehicle battery functions like a phone battery, it will store energy to start your Mercedes Classe M , turn on your headlights, listen to music, lower your power windows… Nevertheless all these actions will consume energy and it may deplete the energy reserve that your battery can store. To handle this problem, the engineers have designed a element called the alternator , this element will use the energy produced by the engine unit of your Mercedes Classe M to produce energy thanks to a copper coil and a magnet. This energy will recharge the battery of your motor vehicle . Nevertheless, consider that this process can only work when your motor vehicle is running, using electrical elements of your motor vehicle when it is stopped will decrease the energy reserve of your motor vehicle. It is considered that a battery of a xxx has a life span of 3 to 5 years.

Problems recharging a Mercedes Classe M’s battery

We will now describe the different battery charging complications on a Mercedes Classe M you might be victim of. If your battery is not recharging because there is actually a problem in your electrical set up, we will now see the different situations.

Battery charging problem on Mercedes Classe M: My battery is discharging even if I am recharging it with a specific charger

In this first circumstance, it is quite possible that your alternator is dead , in truth, if you control to recharge your battery with a charger and your Mercedes Classe M to start, the problem obviously comes from your alternator which should not be able to produce any more current.

Battery charging problem on Mercedes Classe M: My motor vehicle shuts off and does not start even if I have charged the battery

If you have recharged your battery and you have managed to start your Mercedes Classe M but it switches off while you are driving and then does not start, the trouble with recharging the battery of your Mercedes Classe M is that your battery no longer holds the charge .

Battery charging problem on Mercedes Classe M: My battery is discharged although it is new

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If you’ve just bought a battery and it discharges while you’re driving, the problem most likely comes from your alternator. It cannot result from your battery, which is new and consequently holds the charge. The second opportunity is that you have a ground somewhere in your electrical system.

How to fix the problem of battery charging on Mercedes Classe M?

We will now give you the solutions according to the problem you are struggling with. Here are the different complications and their solutions:

  • Defective alternator: You can try with basic mechanics to check it with a pressure gauge to see if it’s producing power. If it doesn’t, changing it is the best remedy, depending on your motor you will pay a few hundred euros. This repair is feasible in the event your alternator is accessible.
  • Battery that no longer holds the charge: In such a case, the purchase of a new battery is the only realistic remedy. Obviously, if you have already recharged it but it is still empty because it is good to be replaced, count between 60 and 100 euros depending on your engine.
  • Ground in the electrical circuit: If you cannot start your Mercedes Classe M but your alternator and battery are in good condition, it is possible that you have a ground on your wiring harness and that you lose energy, a check by a motor vehicle electrician is in such a case required.

How to recharge an empty battery of a Mercedes Classe M

Finally, to recharge the empty battery of a Mercedes Classe M there are only few solutions, using a battery charger is the most efficient remedy, you can locate some for 50 to 100 euros at vendors like Oscaro. Otherwise you can use cables that will only provide the energy needed to begin.

To discover more tips on the Mercedes Classe M, take a look at the Mercedes Classe M category.