With wintertime coming, automobiles often suffer, the most basic situation is to have difficulties starting your Bmw Z4 in the morning with very low temperatures. Generally speaking this is associated with problems recharging the battery of your Bmw Z4 . There are some reasons that can describe why your battery does not recharge correctly anymore, and today we will try to help you to fix this issue that can prevent you from using your car. To get this done, first we will describe how recharging your car battery works, then the different problems of recharging a Bmw Z4, and finally how to recharge an empty car battery.

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How does recharging the battery of a Bmw Z4 function?

Before we describe the different problems of recharging the battery on a Bmw Z4 , we will describe to you how its recharging system operates so that you can figure out the problems you are facing. A car battery works like a phone battery, it will store energy to start your Bmw Z4 , turn on your headlights, play music, lower your power windows… However all these actions will consume energy and it may 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 produced by the engine unit of your Bmw Z4 to generate energy thanks to a copper coil and a magnet. This energy will recharge the battery of your car . However, keep in mind that this process can only work when your car 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 Bmw Z4’s battery

We will now describe the different battery charging problems on a Bmw Z4 you may be victim of. If your battery is not recharging because there is necessarily a issue in your electrical installation, we will now see the different cases.

Battery charging problem on Bmw Z4: My battery is discharging regardless if I am recharging it with a particular charger

In this first case, it is quite possible that your alternator is dead , obviously, if you control to recharge your battery with a charger and your Bmw Z4 to start, the problem certainly originates from your alternator which should not be able to generate any more current.

Battery charging issue on Bmw Z4: My car shuts off and does not start regardless if I have charged the battery

If you have recharged your battery and you have managed to start your Bmw Z4 but it switches off although you are driving and then does not start, the problem with recharging the battery of your Bmw Z4 is that your battery no longer holds the charge .

Battery charging issue on Bmw Z4: 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 originates from your alternator. It cannot originate from your battery, which is new and therefore holds the charge. The second possibility is that you have a ground somewhere in your electrical system.

How to fix the issue of battery charging on Bmw Z4?

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

  • Faulty alternator: You can try with simple mechanics to verify it with a pressure gauge to see if it’s producing power. If it doesn’t, changing it is the best solution, based 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 this case, the purchase of a new battery is the only 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 Bmw Z4 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 Bmw Z4

At last, to recharge the empty battery of a Bmw Z4 there are only few solutions, using a battery charger is the most efficient solution, you can discover 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 begin.

Whenever you have any additional questions about the Bmw Z4, do not hesitate to consult our Bmw Z4 category.