What could be more annoying than noises when you start your automobile… Indeed, you maybe already discovered noises when you start your Mercedes Classe A 3 and generally speaking it’s frustrating. It may not be anything significant, but each new engine starts usually will turn into a scary moment during which you don’t know if your engine will start. That is why our editorial staff has made the decision to prepare this content page to support you find its origin. To do this, first, we will see the case of noise when starting on Mercedes Classe A 3 but the automobile does not start, and finally, the noise you can encounter on your automobile if it starts, first cold and then hot.
I notice a noise when I try to start my Mercedes Classe A 3, but the engine doesn’t start
I acknowledge a clicking noise at the start of my Mercedes Classe A 3
If you notice a noise when you want to start your automobile, and it does not want to turn on, it is likely that it is the battery that is causing the problem. Indeed, if you hear clicking noise when you start your Mercedes Classe A 3, and it sounds like a ticking, you probably lack the energy to run your starter, test your battery with a voltmeter and replace it if necessary. In the event that after verifying your battery, you still experience a noise when starting your Mercedes Classe A 3 and it does not want to start, refer to this article content about starter motor noises on Mercedes Classe A 3 for more information and to discover the source of your problem.
I hear a noise when I start my Mercedes Classe A 3 but the engine it starts
I notice a noise when I start my Mercedes Classe A 3
- Grinding or squealing type noises when I start cold Mercedes Classe A 3 :
If you notice a noise when you start your Mercedes Classe A 3, and this noise is like grinding or squealing noise, which can also be relating to vibrations, it is conceivable that it is the combustion of your automobile that is involved. Indeed if you have an air/fuel mixture that is not good the normal running of the engine will be altered. Verify the state of your injectors and air intake system. For more information on the source of injection-related noises on Mercedes Classe A 3, look at this content. - Cold start friction parts Mercedes Classe A 3 :
If you experience cold friction noises on Mercedes Classe A 3, it is pretty much sure that they come from one of your belts. Either the serpentine belt starts to wear out and therefore causes a friction noise. It is also conceivable that the tensioner roller or damper pulley is worn out and that as a result the extension belt provoke a friction noise, often when cold. Visually check your belt and replace it if necessary. If you have other friction noises, and it doesn’t result from your serpentine belt, we have a full article content on engine of your Mercedes Classe A 3.
I notice a noise when starting my Mercedes Classe A 3 even when hot
- rubber mount / silent bloc dead motor
If you notice a clacking noise just as you start your car’s engine and it is more than 100,000 km long, it is conceivable that some of your engine silentblocks or rubber mounts are dead. And the huge vibrations produced by starting the engine can make starting noise on Mercedes Classe A 3. Verify their state and swap them if necessary. Browse this article content if you would like to have detailed information on rubber mount noises on Mercedes Classe A 3. - Motor flywheel
Finally, if you discern a noise that sounds a little like a crank noise when you start your Mercedes Classe A 3, even when hot, it is conceivable that if your series is equipped with a dual-mass flywheel, it is the source of your concerns. Indeed, these parts have created a lot of concerns on many vehicles. When they take part in the game they generate noise when you start your Mercedes Classe A 3 and when you turn off the engine. Have his state examined by a mecanist.
