Facing problems on your car is especially annoying, furthermore the economic side that these complications signify, one must also add the time lost with a non-operational smart fortwo and the time spent to identify and repair the breakdown. Nevertheless, some problems are less serious than others, which is not to say that they do not worry us. In this article we are going to seek out a trouble that can occur to all of us, feeling vibrations at acceleration on smart fortwo. This trouble can oftentimes be tricky to perceive but it must be taken care of. We will so start our article with the origins of these vibrations on smart fortwo, then, with the answers you have to reduce or stop these tremors.

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Why does my smart fortwo produce vibrations when accelerating?

So let’s start our article with the origins of this kind of trouble on your car. You should already know that an engine, especially if it is ancient or if it has been driven quite a bit, can naturally vibrate without being a trouble behind it. Large diesel engines, especially those with a lot of torque, can bring about this kind of feeling, both at idle and when accelerating.

I feel vibrations on my smart fortwo only when accelerating

Let’s take the most interesting circumstance for us in this article. The simple fact that you suffer trembling on your smart fortwo during your acceleration phases, in this scenario you will have to verify the state of several parts because many of elements can be at the origin of these vibrations and regardless if you are unfortunate a combination of several of them may also be possible, here is the list of components that can be concerned.

  • Turbo: If the turbo of your smart fortwo is faulty, it may bring about vibrations that you will feel when you accelerate at the moment it is turned on.
  • The turbo pressure sensor: This sensor will control the pressure exerted in the turbo of your car, if it fails it may disturb the performance of your turbo and make vibrations that you may experience during acceleration of your smart fortwo.

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  • If the turbo is punctured or ruined, the consequence will be alike, the power supply of your turbo will be troubled and its performance too. Remember to visually examine their condition.

I’m feeling vibrations on my smart fortwo at acceleration and deceleration

We will now concentrate on the scenario where you experience vibrations on your smart fortwo when you are accelerating but also when you are idling. If you only experience vibrations when you are idling on your smart fortwo, please read our article focused upon this trouble to fix your problem. If, alternatively, you realize that your smart fortwo vibrates when accelerating but also when it is stopped, here is the list of components to examine:

  • EGR valve: In fact this valve which handles the return of exhaust gases for pollution standards can become dirty and disturb the evacuation of exhaust gases which can bring about smart fortwo vibrates when accelerating but also when stopped.
  • Injectors: Your injectors that control the fuel/air mixture flow may be dirty or damaged, which will release the wrong amount of mixture and thus prevent your engine block from working effectively, it is even possible that one or more of your cylinders are not running properly.
  • Fuel Filter: Like the injectors, if the filter is clogged it will not let the fuel pass properly and therefore disturb the operation of your smart fortwo, up to the point of generating vibrations during acceleration.

Here are the main triggers of a smart fortwo that vibrates at acceleration

What can I do to stop the vibration when I accelerate on my smart fortwo? What can I do?

Finally, in this last section, we will provide you the possibilities available to you to get over these tremors on your car when you accelerate. Here is the best attitude to adopt based on the part that is involved:

  • Turbo: If your turbo starts all these vibrations when you accelerate your smart fortwo, it will be good for you to control all the components associated with it because changing a complete turbo is a big budget and most of the time the trouble does not come specifically from the turbo. So be sure to check out your turbo pressure sensor, your flowmeter, the EGR valve and the hoses of your turbo. Otherwise take your smart fortwo to your mechanic.
  • EGR valve: The EGR valve has the benefit that it is more often than not easy to access and easy to take apart/clean. You can always take a look at it and clean it, for this see our article on cleaning the EGR valve of an smart fortwo.
  • Injectors: Injectors are very sensitive components and a few impurities may be enough to disturb their operation. Use a fuel additive to simply clean the injectors, if this is not enough you will have to go to a specialist.
  • Fuel Filter: If it is the fuel filter, only change it. A fuel filter doesn’t clean itself, so if it is clogged you will simply have to replace it with a new one.

Now you have all the information you need to find the source of the vibrations at acceleration on your smart fortwo. If you don’t feel able to complete certain procedures don’t hesitate to go to your mechanic.

If you want more guides on the smart fortwo, go to our smart fortwo category.