Our vehicles benefit from increasingly more technologies, in most cases this gives us an additional comfort of use. Having said that, technology has its pros, but as well has some down sides, with it, we find out bugs appearing! One of them is the Start and Stop feature, which is meant to help you save fuel and preserve the planet. You may come across problems and want to turn off the start stop technology on BMW 3 Series . But how do I do that? In this post we will help you discover how this system works, how to disable start and stop on xxx, and what are the recurring problems you may encountered with this option.

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How does the Start Stop on BMW 3 Series work?

Start Stop technology operation

Start Stop is a modern technology that began to be included into recent vehicles about ten years ago. This technology aims to limit the fuel consumption of your BMW 3 Series and to protect the environment by limiting CO2 emissions. Its effectiveness is mainly relevant in an urban environment. In actual fact, vehicles can be made to spend up to 35% of their time at a standstill during urban journeys. The guarantee of start and stop on your car is to save you between 5% and 15% in fuel consumption. However, on long trips or secondary roads, its usefulness is limited. How it works:

  • A reinforced starter or a last generation alternator with built-in starter
  • When you shift into neutral and release the clutch pedal, the engine unit will shut off.
  • When you shift into gear, the car will automatically restart.

On some improved variants, your BMW 3 Series will even have the ability to shut down while you are not stopped (up to 20km/h on some start and stop).

Start Stop BMW 3 Series: Pros and down sides

Although this system has fair pros in terms of environmental preservation and fuel economy, there are nevertheless some down sides to having a start and stop on BMW 3 Series .

  • Benefits:

    • You will make fuel and CO2 emission savings if you have a mainly urban use of your BMW 3 Series. You will too. Furthermore, you will have the ability to advantage from the purchase of a vehicle with a more interesting bonus/malus, allowing you to to buy a cheaper car . At last, you will advantage from an additional comfort because your engine unit will be stopped when you complete red lights or stops.

  • Disadvantages

    • It’s not interesting for you to have this system if you drive on secondary roads . This system is quite expensive to buy (between 500 and 1500€) . At last, the first generations of start stop technology can go through a premature wear of the starter and the battery of your BMW 3 Series. you will have to buy or change your battery more generally,

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How to turn off Start Stop technology on BMW 3 Series?

Now let’s proceed to the component you’re probably most interested in, how to deactivate, disconnect or remove the start stop on your BMW 3 Series? .
Based on how you use your car, you may desire to deactivate this system, which can be annoying or you may feel that your starter is encountering premature wear, or you may have had to purchase a new AGM or EFB battery on your BMW 3 Series . All these are valid reasons to disable your start and stop system.
Here are the two main techniques for disabling the start and stop on BMW 3 Series:

  • The traditional approach: Know, if you don’t already know it, that there is a start and stop disable button on your center console (depending on the year of your car you may have a button labeled “ECO”, “Start and Stop” or “S&S”) that you can use to disconnect your start and stop on every start. However, this approach necessitates you to redo the treatment every time you start the car.
  • It is possible that the start and stop of your BMW 3 Series is switched off completely: It is possible that the start and stop of your BMW 3 Series is switched on unintentionally, or that it does not match the use you have of your car. In such a case, you can disable it by two different solutions. You can create a bridge behind the activation button of your start and stop . At last, second approach you can disconnect the battery charge indicator cable that is on the terminals of your battery, which will make your BMW 3 Series believe that the battery is tired and will deactivate the start and stop to preserve your autonomy.

Start Stop Technology problems BMW 3 Series

Concerning the different concerns you might encountered with the start and stop of your BMW 3 Series . It is possible that this is activated in an unpredicted technique , for example you are doing a manoeuvre and you don’t have time to change to reverse gear and the car stops. It is possible that this problem is associated with the series of your BMW 3 Series. Try to completely deactivate your Start and Stop as discovered in the previous section to avoid this issue or go to your garage area to find out if there is a particular remedy. Another problem encountered by BMW 3 Series owners is that you may experience premature wear of your battery or starter motor. These particular parts for start and stop are expensive, and if you have already looked over the battery prices for xxx or those of the starters you must have realized that they are much more expensive than traditional batteries, do not hesitate to deactivate this system to avoid this sort of issue. Finally, it might be that your start and stop on BMW 3 Series does not work anymore , in this case, go to your motor mechanic to resolve this issue.

In the event that you have any additional questions about the BMW 3 Series, do not hesitate to consult our BMW 3 Series category.