Learning to drive a car is not constantly easy, and often it may seem like a good solution to choose an automatic smart forfour, if it’s for basic comfort or ease of use, this type of transmission is becoming more and more known. However, although they may seem like an excellent choice, there might also be complications with the automatic gearboxes of your smart forfour . This is exactly the theme of our content page. First, we’ll briefly explain the different types of automatic gearboxes, then, in a second step, which complications you might face with the gearbox of your smart forfour , and, finally, how to resolve them.

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The different types of automatic gearbox of a smart forfour

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Gearboxes have the benefit of being known to be solid, 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.
However, based on the type of automatic transmission your smart forfour is equipped with you will have more or less reliability, we will present 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 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 mechanism that will replace the driver’s action. This type of gearbox is less and less common because they are thought to be very slow. We also generally feel a coupling during deceleration.
  • Dual-clutch automatic transmission: This is the ultimate automatic transmission, it works 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 equipped on luxury models.
  • Continuously variable automatic box: It is the same theory as on a scooter, a variator will come to control the differences between acceleration and motor speed, they are especially slow and tend to be unresponsive during the acceleration phases of your smart forfour.

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I’m having complications with the automatic transmission on my smart forfour

We now begin the component that surely attracts you the most in this post, what are the complications you may come across with the automatic transmission of your smart forfour? As outlined above, in general they are more reliable than manual transmissions, nevertheless, here are the most important complications you may face:

  • As revealed earlier, no matter what type of automatic gearbox, they are generally established to be slow and have inertia when accelerating. However, this phenomenon is supposed to occur only when the vehicle is started, not when it is launched. If it feels like it comes about constantly, the clutch or converter is most certainly dead.
  • I have the feeling that a gear in the automatic transmission of my smart forfour no longer shifts or jumps: If you have the feeling that your gears no longer shift or tend to jump on your smart forfour, there is a component that is most certainly to blame for this failure. In actual fact, the solenoid that works as a “switch” to engage the gears must not be working properly, second option, a speed or engine unit speed sensor may be defective and send the wrong information to your gearbox.
  • If you feel drops caused by the automatic gearbox of your smart forfour: 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 info

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  • My smart forfour’s automatic transmission is leaking: At last, if your smart forfour’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 smart forfour?

And finally, we’re going to try to give you the techniques to resolve the automatic transmission complications on your smart forfour . Find them below:

  • Oil leak on the automatic gearbox of a smart forfour: Locate the source of the leak, and replace the concerned gasket, get it conducted by a professional, opening a gearbox is not easy. It will cost you a few hundred euros, specifically for the labour. Do not think twice to read our content page on gearbox oil leaks on smart forfour.
  • Sensor issue: No matter which sensor is concerned, a replacement is the only 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 smart forfour, you will only need to do a whole gearbox replace to gain comfort and preserve your gears.
  • The automatic gearbox of my smart forfour slips: In this case, you clearly have a dead clutch disc, you will have to replace the clutch, and on some models you won’t have the ability 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 smart forfour, such as electronic problems or pressure complications, but this list lists the most important ones, in any case, for such difficult mechanisms. As soon as you feel a problem on this level, we advise you to go quickly to your mechanic.

Whenever you have any further questions about the smart forfour, do not hesitate to consult our smart forfour category.