Having a healthy car appears to be a vital prerequisite for many people, as we are all dependent upon our vehicles, regardless whether it is to get for you to work or for personal travel. So when we observe some thing different about our Mercedes Classe A, we logically usually tend to ask ourselves queries. If, in your case, it’s your engine that rattles when hot on your Mercedes Classe A, you’ve come to to the good article contect. We know that this is a repeated issue and so we have decided to compose a dedicated content page to enable you deal with it. For this, first we will take a look at the problems related to hydraulic tappets and valves, then at combustion problems, and finally at the engine rattling when hot because of problems related to the lower engine.
Engine rattling when hot on my Mercedes Classe A because of the hydraulic tappets
If you notice the engine hot rattles on your Mercedes Classe A, and this noise is based at the top of the engine, it involves that it comes from your cylinder head and its accompanying components. There are two possible triggers of an hot engine rattling on a Mercedes Classe A. Either the hydraulic tappets, generally it is because of their faulty “hydraulic catch-up” system that you will hear these clicking noises, often when hot and not when cold. In any other case, it is the play of your rocker arms or their state of wear that is to blame. In this case, reflect on swapping them.
The engine of my Mercedes Classe A is doing some rattling noise when hot because of combustion problem
Second option, if you have the impression that the hot engine rattling is related to the combustion of your engine, there are three possible triggers of this one. It may be that your timing is out of sync and that it does not manage the synchronization of the different elements of the engine to create good combustion. And to conclude, the most common reason comes from your injectors, which are either clogged or damaged. Don’t forget to go to your auto technician so that he can check the component that seems to be the reason of your engine’s hot clicking on your Mercedes Classe A.
Engine of my Mercedes Classe A rattling cause of problem in the lower part of the engine
Finally, if you have identified the location of origin of your engine that hot rattles on your Mercedes Classe A that comes from your lower engine, it may be that your connecting rods or piston pins are the origin. In both cases, the risk in the long run is engine breakage. These two repairs are particularly complex and most mechanics will advise you to replace the engine of your Mercedes Classe A. In any case, don’t wait when you spot such a issue, it will allow you to prepare for an upcoming big repair or at best find a more affordable remedy, rather than find yourself faced with a failure with the origin of your engine rattling when hot and the end result being your engine giving out on you when you come home from work. Don’t hesitate to look at our catalogue of items on your car that can enable you fix other worries or learn more about your Mercedes Classe A.
If you need more tutorials on the Mercedes Classe A, go to our Mercedes Classe A category.
