Modern cars represent an evergrowing budget, whether it is caused by service or the unpredictable breakdowns associated with all the new technology built into cars. We usually tend to get worried fairly quickly about the tiniest indicator of weakness, and that is a good thing, because a problem on a Audi S4 has to be treated as soon as possible, otherwise it will get worse and affect additional parts. In this article we are going to check out the solutions available to you if you are victim of a Audi S4 that vibrates at idle. First we will try to discover why your Audi S4 is vibrating when idle, and secondly what to do if it you have vibrations idle.

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Why is my Audi S4 having idle vibrations?

So we commence our content with the origins of a Audi S4 that vibrates at idle. For this we will have to look at the components that can provoke this tremor. We will mostly give attention to the fact that your Audi S4 only shakes at idle, if you feel vibrations at acceleration on Audi S4 vibrations don’t hesitate to have a look at our content which deals with this issue. We can already eradicate some auto parts as possible responsible for this problem. In truth, as you are at a standstill, usually in neutral, we can already clear the vehicle’s transmission, running gear, bearings, suspensions, clutch and flywheel. You should be aware, on the other hand, that diesel engines usually tend to vibrate much more than petrol engines, specifically older cars.
However, the bad info is that the reason your Audi S4 is shaking at idle is straight associated with your engine. The main triggers of this vibration are very often associated with the fuel supply of the car, the ignition or the engine silent blocks. Here are the main origins of this vibration and their results on the performance of your Audi S4:

  • Injection: If the injection of your vehicle is damaged and it causes trembling, you should come to feel some kind of coupling in the engine, as if the car was grazing.
  • Ignition: If, alternatively, it is the ignition of your car that is struggling, regardless whether it originates from a spark plug or the complete ignition, you will come to feel problems in the performance of your engine unit. In fact, there will be sparks that don’t develop and it may be that one or more of your cylinders doesn’t work.
  • Engine silent blocks: The least frustrating trigger of a Audi S4 shaking at idle is indeed the engine silent blocks. They are a sort of soft plastic pad that dampen all vibrations and shaking of your car’s engine. When they wear out, they usually tend to lose their function and therefore the vibrations brought on by your engine intensify

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What if my Audi S4 is vibrating at idle?

Let’s move on to the next step, now that you have managed to find the cause of your issue or at least to lower the possible causes, we will show you to you that there are solutions available to get rid of each of these problems.

  • Injection: If your injection is the trigger, the first thing to do will be to use a strong cleaning product that you will add to your fuel, it will cost you about ten euros, but if the issue is modest and only a few impurities block their proper performance, you can get over it without going to your garage. If this is not enough, you will have to consider a whole cleaning of the injection
  • Ignition: If it is your ignition that is causing your Audi S4’s idle vibrations, you will have to pass the car through the diagnostic kit to get more information on the exact issue. And consider a replacement of malfunctioning parts, or an ECU adjustment
  • Motor Silent Blocks: The last trigger of vibration at standstill on your Audi S4 is that the vibration originates from your motor silent blocks. This is the repair that will cost you the least. In fact, replacing silent blocks should not cost you more than 200€, go to your garage to make this change and prevent your Audi S4 from shaking at idle.

Here are the main causes and solutions to remedy your issue of vibration at idle on Audi S4, if furthermore to shaking it does not hold idle, do not hesitate to consult our article on this problem.

To find more tips on the Audi S4, take a look at the Audi S4 category.