Having a care in good conditions seems to be an essential requirement for most of us, as we are all depending on our automobiles, regardless it is to get to work or for personal reasons. So when we identify something different about our Audi A2, we rationally tend to ask ourselves questions. If, in your case, it’s your engine that rattles when hot on your Audi A2, you’ve come to the right place. We understand that this is a repeating issue and so we have decided to write a dedicated article to enable you deal with it. For this, first we will take a look at the trouble linked to hydraulic tappets and valves, then at combustion trouble, and finally at the engine rattling when hot because of concerns linked to the lower engine.
Engine rattling when hot on my Audi A2 because of the hydraulic tappets
If you find out the engine hot rattles on your Audi A2, and this noise is established at the top of the engine, it means that it comes from your cylinder head and its accompanying elements. There are two possible triggers of an hot engine rattling on a Audi A2. Either the hydraulic tappets, in most cases 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 replacing them.
The engine of my Audi A2 is doing some rattling noise when hot because of combustion problem
Second option, if you have the feeling that the hot engine rattling is linked 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 control the synchronization of the different elements of the engine to create good combustion. And to finish, the most traditional cause comes from your injectors, which are either clogged or damaged. Don’t forget to go to your auto technician so that he can inspect the part that seems to be the reason of your engine’s hot clicking on your Audi A2.
Engine of my Audi A2 rattling cause of problem in the lower part of the engine
To finish, if you have outlined the location of origin of your engine that hot rattles on your Audi A2 that comes from your lower engine, it may be that your connecting rods or piston pins are the origin. In both situations, 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 Audi A2. In any case, don’t wait when you detect such a issue, it will let you to foresee an upcoming big repair or at best find a more affordable option, rather than find yourself faced with a failure with the origin of your engine rattling when hot and the end end result being your engine giving out on you when you come home from work. Don’t hesitate to read our catalogue of items on your car that can enable you get rid of other problems or learn more about your Audi A2.
If you wish more tutorials on the Audi A2, go to our Audi A2 category.
