Learning to drive a car is not all the time convenient, and sometimes it may seem like a good solution to choose an automatic BMW 4 Series, if it’s for simple comfort or ease of use, this type of transmission is becoming more and more prevailing. Nevertheless, although they may seem like a perfect solution, there may also be complications with the automatic gearboxes of your BMW 4 Series . This is precisely the subject of our article. First, we’ll quickly explain the different types of automatic gearboxes, then, in a second step, which complications you may come across with the gearbox of your BMW 4 Series , and, at last, how to resolve them.

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The different kind of automatic gearbox of a BMW 4 Series

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Gearboxes have the advantage of being known to be reliable, as you don’t need to use your clutch pedal and everything is electronically and mechanically controlled there will be no premature wear of your clutch or other components that could be put to the test by misuse on your component.
Nevertheless, depending on the type of automatic transmission your BMW 4 Series is equipped with you will have more or less reliability, we will expose them to you now:

  • Classic automatic gearbox: It will use a torque converter, which will manage the gear changes, it’s the oldest technology, it has evolved quite a lot in the last decades (more gears and a better management of the gear changes).
  • Robotized automatic gearbox: This is a manual gearbox with a robotized system that will change the driver’s action. This type of gearbox is less and less common because they are considered very slow. We also quite often feel a coupling during deceleration.
  • Dual-clutch automatic transmission: This is the best automatic transmission, it functions on the same principle as the robotic transmission, but thanks to its dual clutch, you won’t have any more complications with slow speeds or increased fuel consumption. They are often fitted on luxury models.
  • Continuously variable automatic box: It is the same concept as on a scooter, a variator will come to control the differences between acceleration and motor speed, they are particularly slow and tend to be unresponsive during the acceleration phases of your BMW 4 Series.

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I’m having complications with the automatic transmission on my BMW 4 Series

We now begin the component that surely attracts you the most in this post, what are the complications you may encounter with the automatic transmission of your BMW 4 Series? As mentioned above, generally speaking they are more reliable than manual transmissions, nevertheless, here are the main complications you may come across:

  • As described above, no matter what type of automatic gearbox, they are quite often established to be slow and have inertia when accelerating. Nevertheless, this phenomenon is supposed to occur just when the car is started, not when it is launched. If it feels like it occurs all the time, the clutch or converter is most certainly dead.
  • I have the impression that a gear in the automatic transmission of my BMW 4 Series no longer shifts or jumps: If you have the impression that your gears no longer shift or tend to jump on your BMW 4 Series, there is a component that is most likely responsible for this failure. In truth, the solenoid that acts as a “switch” to engage the gears must not be working effectively, second option, a speed or engine unit speed sensor may be faulty and send the wrong information to your gearbox.
  • If you feel drops caused by the automatic gearbox of your BMW 4 Series: If you feel a clutch when you go up or when you slow down, it is either your oil which is too old and which does not lubricate any more adequately all the mechanisms of your gearbox, or else a sensor which gives bad information

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  • My BMW 4 Series’s automatic transmission is leaking: At last, if your BMW 4 Series’s automatic transmission is leaking, it’s most probably one of your spy seals is too worn.

How do I fix automatic transmission complications on a BMW 4 Series?

And finally, we’re going to try to give you the solutions to fix the automatic transmission complications on your BMW 4 Series . Find them down below:

  • Oil leak on the automatic gearbox of a BMW 4 Series: Find the source of the leak, and change the concerned gasket, get it achieved by a specialist, opening a gearbox is not easy. It will cost you a few hundred euros, especially for the labour. Do not hesitate to read our article on gearbox oil leaks on BMW 4 Series.
  • Sensor problem: No matter which sensor is involved, a replacement is the just solution, sensors do not repair themselves, you should count from 100 to a few hundred euros according to the difficulty of access to the one that concerns you.
  • Couplings: If you have complications with the couplings on your BMW 4 Series, you will only need to do a whole gearbox replace to gain comfort and preserve your gears.
  • The automatic gearbox of my BMW 4 Series slips: In such a case, you certainly have a dead clutch disc, you will have to replace the clutch, and on some models you won’t be able to replace it without doing a standard exchange of the gearbox, be prepared to spend more than a thousand euros.

There are other automatic transmission complications on BMW 4 Series, such as electronic problems or pressure complications, but this list lists the main ones, no matter the reason, for such difficult mechanisms. Once you feel a problem on this level, we suggest you to go fairly quickly to your mechanic.

To get more tips on the BMW 4 Series, take a look at the BMW 4 Series category.