Having a healthy car seems to be an important requirement for almost everyone, as we are all dependent upon our vehicles, regardless whether it is to get to your job or for personal reasons. So when we locate something different about our Mercedes Classe A 4, we rationally usually tend to ask ourselves questions. If, in your case, it’s your engine that rattles when hot on your Mercedes Classe A 4, you’ve come to the good website. We understand that this is a repeated problem and so we have chose to produce a specialized document to enable you deal with it. To do so, first we will check out the trouble related to hydraulic tappets and valves, then at combustion trouble, and to conclude at the engine rattling when hot because of problems related to the lower engine.
Engine rattling when hot on my Mercedes Classe A 4 because of the hydraulic tappets
If you notice the engine hot rattles on your Mercedes Classe A 4, and this noise is located at the top of the engine, it means that it comes from your cylinder head and its accompanying parts. There are two possible motives of an hot engine rattling on a Mercedes Classe A 4. Either the hydraulic tappets, in general it is because of their faulty “hydraulic catch-up” system that you will hear these clicking noises, often when hot and not when cold. Otherwise, it is the play of your rocker arms or their state of wear that is to blame. In this case, consider swapping them.
The engine of my Mercedes Classe A 4 is doing some rattling noise when hot because of combustion problem
Second possibility, if you have the impression that the hot engine rattling is related to the combustion of your engine, there are three possible motives of this one. It may be that your timing is out of sync and that it does not control the synchronization of the different elements of the engine to promote good combustion. And finally, the most common motive comes from your injectors, which are either clogged or damaged. Don’t forget to go to your auto mechanic so that he can check the component that seems to be at the origin of your engine’s hot clicking on your Mercedes Classe A 4.
Engine of my Mercedes Classe A 4 rattling cause of problem in the lower part of the engine
To conclude, if you have determined the location of origin of your engine that hot rattles on your Mercedes Classe A 4 that comes from your lower engine, it may be that your connecting rods or piston pins are the origin. In both circumstances, 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 4. In any case, don’t wait when you notice such a problem, it will allow you to anticipate an upcoming expense or at best find a less expensive option, rather than find yourself faced with a failure with the origin of your engine rattling when hot and the end final result being your engine breaking down on you when you come home from work. Don’t hesitate to check out our catalogue of items on your car that can enable you remedy other concerns or learn more about your Mercedes Classe A 4.
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