With cold months coming, cars often suffer, the most general case is to have troubles starting your Mercedes Classe Cls in the morning with very low temperatures. Generally this is related to problems recharging the battery of your Mercedes Classe Cls . There are some factors that can explain why your battery does not recharge correctly anymore, and today we will try to help you to resolve this issue that can prevent you from using your motor vehicle. To achieve this, first we will explain how recharging your car battery works, then the different problems of recharging a Mercedes Classe Cls, and at last how to recharge an empty car battery.

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

Before we describe the different problems of recharging the battery on a Mercedes Classe Cls , we will explain to you how its recharging system works so that you can discover the problems you are facing. A motor vehicle battery works like a phone battery, it will store energy to start your Mercedes Classe Cls , turn on your headlights, listen to music, lower your power windows… Nevertheless all these actions will consume energy and it might deplete the energy reserve that your battery can store. To handle this issue, the engineers have designed a element called the alternator , this element will use the energy created by the engine unit of your Mercedes Classe Cls 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 just work when your motor vehicle is running, using electrical elements of your motor vehicle when it is stopped will drain 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 Cls’s battery

We will now describe the different battery charging problems on a Mercedes Classe Cls you might be victim of. If your battery is not recharging because there is necessarily a issue in your electrical set up, we will now see the different cases.

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

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

Battery charging issue on Mercedes Classe Cls: My motor vehicle shuts off and does not start regardless if I have charged the battery

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

Battery charging issue on Mercedes Classe Cls: My battery is discharged although it is new

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If you’ve just bought a battery and it discharges although you’re driving, the issue most probably comes from your alternator. It cannot originate from your battery, which is new and consequently holds the charge. The second possibility is that you have a ground somewhere in your electrical system.

How to resolve the issue of battery charging on Mercedes Classe Cls?

We will now give you the solutions according to the issue you are facing. Here are the different problems and their solutions:

  • Defective alternator: You can try with basic mechanics to check it with a pressure gauge to find out if it’s producing power. If it doesn’t, replacing it is the best solution, based on your motor you will pay a few hundred euros. This fix is feasible in the event that your alternator is accessible.
  • Battery that no longer holds the charge: In this case, the purchase of a new battery is the just realistic solution. Obviously, if you have already recharged it but it is still empty because it is good to be changed, count between 60 and 100 euros based on your engine.
  • Ground in the electrical circuit: If you cannot start your Mercedes Classe Cls 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 Cls

At last, to recharge the empty battery of a Mercedes Classe Cls there are just few solutions, using a battery charger is the most efficient solution, you can find some for 50 to 100 euros at vendors like Oscaro. Otherwise you can use cables that will just provide the energy needed to start.

Whenever you have any additional questions about the Mercedes Classe Cls, do not hesitate to consult our Mercedes Classe Cls category.