With cold months coming, vehicles often suffer, the most general case is to have difficulties starting your Mercedes Viano in the morning with very low temperatures. In general this is associated with problems recharging the battery of your Mercedes Viano . There are some reasons that can show you why your battery does not recharge properly anymore, and today we will try to help you to resolve this issue that can prevent you from using your car. To do this, first we will show you how recharging your car battery functions, then the different problems of recharging a Mercedes Viano, and at last how to recharge an empty car battery.

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How does recharging the battery of a Mercedes Viano work?

Before we summarize the different complications of recharging the battery on a Mercedes Viano , we will show you to you how its recharging system works so that you can figure out the complications you are struggling with. A car battery functions like a phone battery, it will store energy to start your Mercedes Viano , turn on your headlights, enjoy music, lower your power windows… However 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 produced a element called the alternator , this element will use the energy created by the engine of your Mercedes Viano to create energy thanks to a copper coil and a magnet. This energy will recharge the battery of your car . However, bear in mind that this process can only work when your motor vehicle is running, using electrical elements of your car when it is stopped will drain the energy reserve of your car. It is considered that a battery of a xxx has a life span of 3 to 5 years.

Problems recharging a Mercedes Viano’s battery

We will now describe the different battery charging complications on a Mercedes Viano you may be victim of. If your battery is not recharging because there is actually a issue in your electrical installation, we will now see the different situations.

Battery charging problem on Mercedes Viano: 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 , obviously, if you manage to recharge your battery with a charger and your Mercedes Viano to start, the problem most certainly comes from your alternator which should not be able to create any more current.

Battery charging issue on Mercedes Viano: My car 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 Viano but it switches off although you are driving and then does not start, the trouble with recharging the battery of your Mercedes Viano is that your battery no longer holds the charge .

Battery charging issue on Mercedes Viano: 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 likely comes from your alternator. It cannot result from your battery, which is new and therefore holds the charge. The second opportunity is that you have a ground somewhere in your electrical system.

How to resolve the issue of battery charging on Mercedes Viano?

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

  • Faulty alternator: You can try with basic mechanics to verify it with a pressure gauge to see if it’s producing power. If it doesn’t, replacing it is the best remedy, 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 such a case, the purchase of a new battery is the only realistic remedy. Indeed, 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 Viano 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 verify by a car electrician is in such a case necessary.

How to recharge an empty battery of a Mercedes Viano

Finally, to recharge the empty battery of a Mercedes Viano there are only few solutions, using a battery charger is the most efficient remedy, you can find some for 50 to 100 euros at vendors like Oscaro. In any other case you can use cables that will only provide the energy needed to start.

If you have any additional questions about the Mercedes Viano, do not hesitate to consult our Mercedes Viano category.