It is never relaxing to find out a sound you don’t know anything about and comes from your car. So what if you define a noise that is persistant in the cabin of your smart forfour? It is highly conceivable that this is a small problem, but before being sure of that, it is better to do some checks. Our team has made this content to help you find and solve this cabin noise. First, we will look at those that come from the dashboard, after that noises from the cabin, the doors, and at last the plastic noises on smart forfour that surface when it is hot.cabin-noisesmart-forfour

Reasons that can cause noise in the passenger cabin of your smart forfour

I feel plastic rattling noises on the dashboard smart forfour

One of the conceivable elements that can produce a plastic rattling noise in your smart forfour is that your dashboard, after a repair or vibrations suffered during its lifetime, it may have fasteners that have come loose or unscrewed. Try to define the precise area of this plastic rattling noise on smart forfour and using your vehicle’s technical manual try to verify the tightness of all the screws concerned. Otherwise take your vehicle to your auto technician.

I discern noises in the cabin smart forfour

The second most common possibility of a cabin noise in your smart forfour is that some parts that come apart may be loose, either because of too frequent disassembly that would have reduced the holding between these parts, or because of vibrations. Think about verifying your ceiling light which is sometimes the induce of a cabin noise on smart forfour. Otherwise open your doors, those closest to the origin of the noise and verify all the openings, covers that are located there, some may have moved and therefore vibrate while driving. Generally putting them back in place or gluing them is enough to solve the problem.

I encounter door noises on my smart forfour

If you feel a plastic noise on the doors of your smart forfour, it is conceivable that it is one of your door trim fasteners that is destroyed, or a screw from an internal mechanism of the glass for example or the loudspeaker that has unscrewed and therefore makes the component in question to rub against the door interior. Feel free to disassemble your door trim to find the origin of this plastic door noise on smart forfour. For more information on door noises on smart forfour, feel free to read this article.

I find out a cabin noise when hot smart forfour

If, on the other hand, you experience cabin noises in your smart forfour when summer comes or when the outside temperature is warm, it is unfortunately obvious that this problem manifests itself more during these periods. In fact, plastic being a rather flexible material will expand with heat and will therefore much more easily rub on other plastic or metal parts, this is what will generate cabin noises when hot on your smart forfour. It is difficult to fix this problem, you can always look for the exact origin of the noise, and try to put foams or tape between the expanding parts to limit their noise from their expansion.