Taking care of your car all the time is the best thing you can do. Nevertheless standard routine service is designed to keep your Mercedes Classe Cls running smoothly over time, some unexpected breakdowns can add heavily to your annual car budget. Today we’re going to speak about your sense of smell, and the clues it can give you about a possible breakdown, that’s why our team has written this content page to help you in case you identify a burnt plastic smell caused by your Mercedes Classe Cls . To help you check that it is nothing serious, first we will detail the different things that can create a burnt plastic smell on your car, then, in a second step, how to discover the origin of this burnt plastic smell on your Mercedes Classe Cls? .

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The different possible roots and risks of smell of burnt plastic on a Mercedes Classe Cls

So we begin our content with the different possible roots of burnt plastic smell on a Mercedes Classe Cls . In general, noticing a plastic or rubber smell is never a good sign. In fact, modern cars are full of it and it could be the sign of a important breakdown. Below we will talk about the different possible origins of burnt plastic smell:

  • Transmission oil: This is the most important possible origin of such an odor. In fact, the function of gear or transmission oil is to lubricate the different elements of your gearbox so that all the gears and pinions are not damaged, it as well has a second function as a temperature regulator. Nevertheless, over time, the oil will lose its effectiveness and will not lubricate the auto parts and control the temperature as well, which will trigger the oil to overheat and thus give off that burnt plastic smell on your Mercedes Classe Cls. You risk pre-wearing your gearbox if you don’t take care of it.
  • The accessory belt: Nevertheless rarer, it is possible with wear and tear that your belt, which is principally done of rubber, will decline and no longer rotate totally on its axis. With the friction that this will trigger the plastic will heat up and burn out, this reaction will generate a strong smell of burnt plastic or rubber in the engine unit block of your Mercedes Classe Cls.
  • Faulty hose wear: This case occurs especially on Mercedes Classe Cls that are starting to get a few years old or that have stayed a long time without rolling. In fact, storing your vehicle contrary to what you might think will trigger the plastic auto parts to wear out more fairly quickly. Hoses are the first to be affected by this phenomenon. The rubber will disintegrate little by little and with the rise in heat of the fluid that circulates in it, it might melt. The risk of this issue is the breakage of the accessory belt.
  • A body component: Less common, especially present on Mercedes Classe Cls’s that have suffered a small shock. Following a front or rear impact, wheel arches, bumpers or other plastic body auto parts that might have been bent might rub against one of your wheels and give off that burnt plastic smell. This may as well pre-wear out your tyres.

How to identify where the smell of burning plastic comes from on a Mercedes Classe Cls?

And now, to finish our content page, we’re going to try to help you discover the origin of the smell of burnt plastic on your Mercedes Classe Cls . Now that you know the different possible roots of this smell, we’ll just have to do some checks to eliminate the tracks that don’t concern you and resolve your problem quickly. If your Mercedes Classe Cls smells hot, don’t hesitate to browse our content page on this topic.

  • Transmission oil: Nothing could be simpler, open your transmission oil cap (when cold) and check that your oil is reddish in colour and fluid enough. If you discover debris inside, and it is darker, it’s time to replace it. Do not hesitate to seek advice from our content page to identify how to change the gearbox oil on a Mercedes Classe Cls.
  • Accessory Belt: Visually check that your accessory belt is not in poor state, it might also produce a whistling sound if it is in poor state. Do not hesitate to replace it.
  • Hoses: For hoses, you will need to visually check all your hoses to discover if any are frayed or melted. If this is the case, change them.
  • Body auto parts: Last but not least, the last element that can trigger the smell of plastic or burnt rubber on your Mercedes Classe Cls, a body part, check all wheel arches, that no part rubs against

    If you need more guides on the Mercedes Classe Cls, go to our Mercedes Classe Cls category.