With winter weather coming, vehicles often suffer, the most common scenario is to have troubles starting your Bmw Serie 3 E90 early in the day with very low temperatures. Generally speaking this is associated with problems recharging the battery of your Bmw Serie 3 E90 . There are several factors that can explain why your battery does not recharge properly anymore, and in this article we will try to help you to solve this issue that can prevent you from using your motor vehicle. To get this done, first we will explain how recharging your car battery functions, then the different problems of recharging a Bmw Serie 3 E90, and at last how to recharge an empty car battery.


How does recharging the battery of a Bmw Serie 3 E90 function?

Before we describe the different complications of recharging the battery on a Bmw Serie 3 E90 , we will explain to you how its recharging system operates so that you can figure out the complications you are facing. A motor vehicle battery functions like a phone battery, it will store energy to start your Bmw Serie 3 E90 , turn on your headlights, listen to 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 overcome this issue, the engineers have produced a component called the alternator , this component will use the energy generated by the engine unit of your Bmw Serie 3 E90 to produce energy thanks to a copper coil and a magnet. This energy will recharge the battery of your motor vehicle . However, bear in mind that this process can just work when your car is running, using electrical components 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 Bmw Serie 3 E90’s battery

We will now describe the different battery charging complications on a Bmw Serie 3 E90 you might be victim of. If your battery is not recharging because there is actually a issue in your electrical set up, we will now see the different situations.

Battery charging problem on Bmw Serie 3 E90: My battery is discharging even if I am recharging it with a particular charger

In this first case, it is quite possible that your alternator is dead , in fact, if you control to recharge your battery with a charger and your Bmw Serie 3 E90 to start, the problem most certainly originates from your alternator which should not be able to produce any more current.

Battery charging issue on Bmw Serie 3 E90: 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 been able to start your Bmw Serie 3 E90 but it switches off while you are driving and then does not start, the trouble with recharging the battery of your Bmw Serie 3 E90 is that your battery no longer holds the charge .

Battery charging issue on Bmw Serie 3 E90: My battery is discharged although it is new

If you’ve just bought a battery and it discharges while 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 opportunity is that you have a ground somewhere in your electrical system.

How to solve the issue of battery charging on Bmw Serie 3 E90?

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

  • Defective alternator: You can try with simple mechanics to check it with a pressure gauge to discover 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 that your alternator is accessible.
  • Battery that no longer holds the charge: In such a case, the purchase of a new battery is the just realistic remedy. In actual fact, if you have already recharged it but it is still empty because it is good to be changed, count between 60 and 100 euros depending on your engine.
  • Ground in the electrical circuit: If you cannot start your Bmw Serie 3 E90 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 necessary.

How to recharge an empty battery of a Bmw Serie 3 E90

At last, to recharge the empty battery of a Bmw Serie 3 E90 there are just few solutions, using a battery charger is the most efficient remedy, you can locate some for 50 to 100 euros at vendors like Oscaro. In any other case you can use cables that will just provide the energy needed to begin.

If you wish more tutorials on the Bmw Serie 3 E90, go to our Bmw Serie 3 E90 category.