With cold months coming, cars tend to suffer, the most general scenario is to have troubles starting your Audi A8 in the morning with very low temperatures. In general this is associated with problems recharging the battery of your Audi A8 . There are several reasons that can show you why your battery does not recharge properly anymore, and today we will try to help you to fix this problem that can prevent you from using your motor vehicle. To get this done, first we will show you how recharging your car battery functions, then the different problems of recharging a Audi A8, and finally how to recharge an empty car battery.
How does recharging the battery of a Audi A8 work?
Before we describe the different complications of recharging the battery on a Audi A8 , we will show you to you how its recharging system operates 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 Audi A8 , turn on your headlights, play music, lower your power windows… Nevertheless all these actions will consume energy and it may possibly deplete the energy reserve that your battery can store. To get over this problem, the engineers have developed a element called the alternator , this element will use the energy generated by the engine unit of your Audi A8 to generate energy thanks to a copper coil and a magnet. This energy will recharge the battery of your motor vehicle . Nevertheless, keep in mind that this process can only work when your car 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 Audi A8’s battery
We will now describe the different battery charging complications on a Audi A8 you may be victim of. If your battery is not recharging because there is actually a problem in your electrical installation, we will now see the different cases.
Battery charging problem on Audi A8: 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 Audi A8 to start, the problem certainly originates from your alternator which should not be able to generate any more current.
Battery charging problem on Audi A8: 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 Audi A8 but it switches off although you are driving and then does not start, the problem with recharging the battery of your Audi A8 is that your battery no longer holds the charge .
Battery charging problem on Audi A8: 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 problem most likely originates from your alternator. It cannot come 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 fix the problem of battery charging on Audi A8?
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, replacing it is the best solution, depending 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 only realistic solution. Indeed, 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 Audi A8 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 this case required.
How to recharge an empty battery of a Audi A8
Finally, to recharge the empty battery of a Audi A8 there are only few solutions, using a battery charger is the most efficient solution, you can locate 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.
To discover more tips on the Audi A8, take a look at the Audi A8 category.
