Having a healthy car seems to be an essential prerequisite for many people, as we are all depending on our automobiles, whether it is to go to your job or for personal travel. So when we observe some thing different about our BMW X4, we logically tend to ask ourselves questions. If, in your case, it’s your engine that rattles when hot on your BMW X4, you’ve come to the right place. We know that this is a recurring trouble and so we have decided to write a specialized content page to enable you deal with it. For this, first we will look into the concerns associated with hydraulic tappets and valves, then at combustion concerns, and finally at the engine rattling when hot because of trouble associated with the lower engine.

hot-engine-rattling-bmw-x4

Engine rattling when hot on my BMW X4 because of the hydraulic tappets

If you notice the engine hot rattles on your BMW X4, and this noise is established at the top of the engine, it denotes that it comes from your cylinder head and its accompanying elements. There are two possible triggers of an hot engine rattling on a BMW X4. 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 accountable. In such a case, consider replacing them.

The engine of my BMW X4 is doing some rattling noise when hot because of combustion problem

Second possibility, if you have the impression that the hot engine rattling is associated with 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 control the synchronization of the different components of the engine to create good combustion. And to finish, the most classic trigger comes from your injectors, which are either clogged or damaged. Don’t hesitate to go to your repair shop so that he can look at the component that seems to be the reason of your engine’s hot clicking on your BMW X4.

Engine of my BMW X4 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 BMW X4 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 BMW X4. In any case, don’t wait when you notice such a trouble, it will allow you to prepare for an upcoming big repair or at best find a less costly option, 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 resolve other problems or learn more about your BMW X4.

If you want more guides on the BMW X4, go to our BMW X4 category.