What could possibly be more annoying than noises when you start your vehicle… Indeed, you plausibly previously listened to noises when you start your Mercedes Classe E 4 and usually it’s frustrating. It might not be anything severe, 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 team has decided to compose this content page to help you find its origin. To do this, first, we will see the case of noise when starting on Mercedes Classe E 4 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 Classe E 4, but the engine doesn’t start
I find a clicking noise at the start of my Mercedes Classe E 4
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 contributing to the problem. Indeed, if you perceive clicking noise when you start your Mercedes Classe E 4, 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 necessary. In the event that after looking at your battery, you still know a noise when starting your Mercedes Classe E 4 and it does not want to start, refer to this article content about starter motor noises on Mercedes Classe E 4 for more info and to find the source of your problem.
I experience a noise when I start my Mercedes Classe E 4 but the engine it starts
I listen to a noise when I start my Mercedes Classe E 4
- Grinding or squealing type noises when I start cold Mercedes Classe E 4 :
If you listen to a noise when you start your Mercedes Classe E 4, and this noise looks like grinding or squealing noise, which can also be connected to vibrations, it is possible that it is the combustion of your vehicle that is involved. Indeed if you have an air/fuel mixture that is not good the normal operation of the engine will be altered. Examine the condition of your injectors and air intake system. For more info on the origin of injection-related noises on Mercedes Classe E 4, consult this article. - Cold start friction parts Mercedes Classe E 4 :
If you know cold friction noises on Mercedes Classe E 4, it is practically certain 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 possible 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 verify your belt and replace it if required. If you have other friction noises, and it doesn’t originate from your serpentine belt, we have a full article content on engine of your Mercedes Classe E 4.
I listen to a noise when starting my Mercedes Classe E 4 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 possible that some of your engine silentblocks or rubber mounts are good to be changed. And the huge vibrations generated by starting the engine can produce starting noise on Mercedes Classe E 4. Examine their condition and swap them if required. Read this article content if you would like to have detailed info on rubber mount noises on Mercedes Classe E 4. - Motor flywheel
Finally, if you perceive a noise that sounds a little like a crank noise when you start your Mercedes Classe E 4, even when hot, it is possible that if your series is equipped with a dual-mass flywheel, it is the source of your problems. Indeed, these parts have created a lot of problems on many cars. When they take part in the game they make noise when you start your Mercedes Classe E 4 and when you turn off the engine. Have his condition checked out by a professional.
