The battery of your car is a wearing part, it is commonly considered that it will have between 5 and 6 years of life. You may have found yourself one morning without a battery and not being able to start your Bmw Serie 3 E92. And frequently this is attributable to a battery that no longer stores energy. So in cases like this, how do I disconnect the battery from my Bmw Serie 3 E92? Precisely, our team has posted this article in order to help you do this common procedure safely and securely. First, we will give you some suggestions on how to do it safely, and then we will put it into practice and how to disconnect the battery on your Bmw Serie 3 E92.

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How to disconnect the battery on my Bmw Serie 3 E92: A few tips

To begin with, before dealing with how to disconnect the battery from your Bmw Serie 3 E92, we will give you a few tips on how to do this procedure securely and save you from wasting time, some of them will absolutely seem obvious to you, but you can never be too mindful :

  • Before doing anything on your car, you must always place it on a flat surface with the hand brake on to prevent any movement of the Bmw Serie 3 E92.
  • The battery in your car is an energy accumulator, and can likely send out a deadly charge to humans, so you will need to remember to turn off your vehicle’s ignition and remove any jewelry or metal objects you may be wearing to be sure you take as little risk as possible.
  • Furthermore to being filled with energy, the battery will be filled with acid, a very corrosive chemical substance that can do a lot of damage to your skin. As a precaution safeguard, wear rubber gloves and goggles to protect you from splashing.
  • Finally when you go to the section how to disconnect the battery on your Bmw Serie 3 E92, don’t touch the two terminals of your battery, you might cause a short circuit with your body as a conductor.

How to disconnect a battery on my Bmw Serie 3 E92: Take action

Let’s start now, the section that absolutely brings you in this article, how to disconnect a battery on your Bmw Serie 3 E92. So, after having taken all the safety measures we listed just before, you will finally be able to start the removal of the battery from your car. For this, it will be quite simple. First you will have to take out the plastic covers that protect the terminals of your battery. Observe the state of your terminals, if they are oxidized or very dirty, we suggest you to use a soft wire brush and baking soda to clean them before disassembling. Once the cleaning is achieved, you will first have to remove the negative battery terminal of your car using a nut and bolt (this is the black cable with a “-” sign), always in this direction as it is linked to the car chassis, if you first remove the positive terminal (red cable with a “+” sign) and touch a part of the chassis, it would provoke a short circuit. Now you can disconnect the positive terminal of the battery from your Bmw Serie 3 E92. Once both terminals are disconnected, you can begin the last step, disconnect the battery from the engine compartment of your car. To do so, you just have to remove the rod and the clamp, in most cases held by a nut or a torx bolt, and take it out of its place. Take care though, a battery weighs very heavy, be careful and forceful, and also think about take it out vertically to steer clear of any acid leakage. That’s it, you have just learned the process for how to disconnect a battery on your Bmw Serie 3 E92, if you respect all the safety guidelines, everything should go well. If you want to find out how to safely reconnect your battery, check out this article, and if you want more information about your Bmw Serie 3 E92, we have a directory of articles dedicated to your vehicle.

If you need more tutorials on the Bmw Serie 3 E92, go to our Bmw Serie 3 E92 category.