What could possibly be more distressing than noises when you start your vehicle… In fact, you probably previously noticed noises when you start your Mercedes Benz S Class and in most cases it’s frustrating. It may not be anything severe, 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 decided to compose this content page to support you find its origin. To do this, first, we will see the case of noise when starting on Mercedes Benz S Class but the vehicle does not start, and finally, the noise you can experience on your vehicle if it starts, first cold and then hot.
I listen to a noise when I try to start my Mercedes Benz S Class, but the engine doesn’t start
I detect a clicking noise at the start of my Mercedes Benz S Class
If you listen to a noise when you want to start your vehicle, and it does not want to turn on, it is likely that it is the battery that is causing the problem. In fact, if you listen clicking noise when you start your Mercedes Benz S Class, and it sounds like a ticking, you almost certainly lack the energy to run your starter, test your battery with a voltmeter and replace it if required. In case that after looking at your battery, you still experience a noise when starting your Mercedes Benz S Class and it does not want to start, consult this content about starter motor noises on Mercedes Benz S Class for more info and to discover the origin of your problem.
I listen a noise when I start my Mercedes Benz S Class but the engine it starts
I listen to a noise when I start my Mercedes Benz S Class
- Grinding or squealing type noises when I start cold Mercedes Benz S Class :
If you listen to a noise when you start your Mercedes Benz S Class, and this noise sounds like grinding or squealing noise, which can also be related 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. Verify the condition of your injectors and air intake system. For more info on the origins of injection-related noises on Mercedes Benz S Class, see this content. - Cold start friction parts Mercedes Benz S Class :
If you perceive cold friction noises on Mercedes Benz S Class, it is practically sure that they come from one of your belts. Either the serpentine belt starts to wear out and therefore triggers 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 make a friction noise, often when cold. Visually verify your belt and replace it if required. If you have other friction noises, and it doesn’t result from your serpentine belt, we have a full content on engine of your Mercedes Benz S Class.
I listen to a noise when starting my Mercedes Benz S Class even when hot
- rubber mount / silent bloc dead motor
If you listen to a clacking noise just when 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 expired. And the huge vibrations produced by starting the engine can produce starting noise on Mercedes Benz S Class. Verify their condition and swap them if required. Consult this content if you would like to have detailed info on rubber mount noises on Mercedes Benz S Class. - Motor flywheel
Finally, if you notice a noise that sounds a little like a crank noise when you start your Mercedes Benz S Class, even when hot, it is conceivable that if your series is equipped with a dual-mass flywheel, it is the origin of your trouble. In fact, these parts have created a lot of trouble on many automobiles. When they take part in the game they generate noise when you start your Mercedes Benz S Class and when you turn off the engine. Have his condition checked out by a mecanist.
