Taking care of your car on a regular basis is the best thing you can do. Although standard routine service is supposed to keep your Lexus NX running smoothly with time, some unexpected breakdowns can add heavily to your annual car budget. Today we’re going to talk about your sense of smell, and the clues it can give you about a possible malfunction, that’s why our team has created this article to help you in the event that you notice a burnt plastic smell caused by your Lexus NX . To help you check that it is nothing severe, first we will detail the different things that can produce a burnt plastic smell on your car, then, in a second step, how to locate the source of this burnt plastic smell on your Lexus NX? .

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The different possible sources and risks of smell of burnt plastic on a Lexus NX

So we commence our article with the different possible sources of burnt plastic smell on a Lexus NX . Generally, noticing a plastic or rubber smell is hardly ever a good signal. Indeed, recent cars are full of it and it could be the sign of a major malfunction. Down below we will talk about the different possible origins of burnt plastic smell:

  • Transmission oil: This is the most important possible source of such an odor. Indeed, the function of gear or transmission oil is to lubricate the different components of your gearbox so that all the gears and pinions are not broken, it also 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 cause the oil to overheat and thus give off that burnt plastic smell on your Lexus NX. You risk pre-wearing your gearbox if you don’t take care of it.
  • The accessory belt: Although rarer, it is possible with wear and tear that your belt, which is principally made of rubber, will deteriorate and no longer rotate entirely on its axis. With the friction that this will cause 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 Lexus NX.
  • Faulty hose wear: This case arises specifically on Lexus NX that are starting to get a few years old or that have stayed a long time without rolling. In reality, storing your car unlike what you might believe will cause the plastic auto parts to wear out more fairly quickly. Hoses are the first to be impacted by this phenomenon. The rubber will disintegrate little by little and with the rise in heat of the fluid that circulates in it, it may melt. The risk of this problem is the breakage of the accessory belt.
  • A body component: Less basic, specifically present on Lexus NX’s that have suffered a small shock. Following a front or rear impact, wheel arches, bumpers or other plastic body auto parts that may have been bent may rub against one of your wheels and give off that burnt plastic smell. This may also pre-wear out your tyres.

How to identify where the smell of burning plastic comes from on a Lexus NX?

And now, to finish our article, we’re going to try to help you locate the source of the smell of burnt plastic on your Lexus NX . Now that you know the different possible origins of this smell, we’ll just have to do some checks to eliminate the tracks that don’t concern you and resolve your issue quickly. If your Lexus NX smells hot, don’t hesitate to read our article on this topic.

  • Transmission oil: Nothing could be easier, open your transmission oil cap (when cold) and check that your oil is reddish in colour and fluid enough. If you find out debris inside, and it is darker, it’s time to change it. Do not hesitate to consult our article to identify how to change the gearbox oil on a Lexus NX.
  • Accessory Belt: Visually check that your accessory belt is not in poor condition, it may also produce a whistling sound if it is in poor condition. Do not hesitate to change it.
  • Hoses: For hoses, you will need to visually check all your hoses to find out 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 cause the smell of plastic or burnt rubber on your Lexus NX, a body part, check all wheel arches, that no part rubs against

    If perhaps you have any further questions about the Lexus NX, do not hesitate to consult our Lexus NX category.