What could possibly be more frustrating than noises when you start your vehicle… In fact, you plausibly previously listened to noises when you start your Mercedes Classe C and in most cases it’s frustrating. It could not be anything significant, but each new engine starts usually turns into a scary moment during which you don’t know if your engine will start. That is why our team has made the decision to create this document to help you find its source. To do this, first, we will see the case of noise when starting on Mercedes Classe C but the vehicle does not start, and finally, the noise you can encounter on your vehicle if it starts, first cold and then hot.
I experience a noise when I try to start my Mercedes Classe C, but the engine doesn’t start
I identify a clicking noise at the start of my Mercedes Classe C
If you experience a noise when you want to start your vehicle, and it does not want to turn on, it is very likely that it is the battery that is triggering the issue. In fact, if you hear clicking noise when you start your Mercedes Classe C, and it sounds like a ticking, you almost certainly lack the energy to run your starter, test your battery with a voltmeter and swap it if necessary. In case that after verifying your battery, you still experience a noise when starting your Mercedes Classe C and it does not want to start, browse this article about starter motor noises on Mercedes Classe C for more information and to find the source of your issue.
I listen a noise when I start my Mercedes Classe C but the engine it starts
I experience a noise when I start my Mercedes Classe C
- Grinding or squealing type noises when I start cold Mercedes Classe C :
If you experience a noise when you start your Mercedes Classe C, and this noise sounds like grinding or squealing noise, which can also be relating to vibrations, it is conceivable that it is the combustion of your vehicle that is involved. In fact if you have an air/fuel mixture that is not good the normal performance of the engine will be altered. Examine the state of your injectors and air intake system. For more information on the origins of injection-related noises on Mercedes Classe C, consult this article. - Cold start friction parts Mercedes Classe C :
If you perceive cold friction noises on Mercedes Classe C, it is pretty much certain 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 triggers a friction noise, often when cold. Visually examine your belt and swap it if required. If you have other friction noises, and it doesn’t originate from your serpentine belt, we have a full article on engine of your Mercedes Classe C.
I experience a noise when starting my Mercedes Classe C even when hot
- rubber mount / silent bloc dead motor
If you experience 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 good to be replaced. And the huge vibrations made by starting the engine can produce starting noise on Mercedes Classe C. Examine their state and change them if required. Consult this article if you would like to have detailed information on rubber mount noises on Mercedes Classe C. - Motor flywheel
Finally, if you notice a noise that sounds a little like a crank noise when you start your Mercedes Classe C, even when hot, it is conceivable that if your series is equipped with a dual-mass flywheel, it is the source of your trouble. In fact, these parts have created a lot of trouble on many vehicles. When they take part in the game they make noise when you start your Mercedes Classe C and when you turn off the engine. Have his state examined by a mecanist.
