What can be more disturbing than noises when you start your vehicle… Indeed, you plausibly previously perceived noises when you start your Mercedes Benz M Class and generally it’s frustrating. It might not be anything significant, but each new engine starts usually becomes a scary moment during which you don’t know if your engine will start. That is why our team has made the decision to prepare this document to help you find its origin. To do this, first, we will see the case of noise when starting on Mercedes Benz M 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 a noise when I try to start my Mercedes Benz M Class, but the engine doesn’t start
I detect a clicking noise at the start of my Mercedes Benz M Class
If you listen 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 triggering the problem. Indeed, if you listen clicking noise when you start your Mercedes Benz M Class, and it sounds like a ticking, you probably lack the energy to run your starter, test out your battery with a voltmeter and change it if necessary. In case that after checking out your battery, you still experience a noise when starting your Mercedes Benz M Class and it does not want to start, browse this article content about starter motor noises on Mercedes Benz M Class for more information and to find the origin of your problem.
I listen to a noise when I start my Mercedes Benz M Class but the engine it starts
I listen a noise when I start my Mercedes Benz M Class
- Grinding or squealing type noises when I start cold Mercedes Benz M Class :
If you listen a noise when you start your Mercedes Benz M Class, and this noise looks like grinding or squealing noise, which can also be relating 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 running of the engine will be altered. Check the state of your injectors and air intake system. For more information on the origin of injection-related noises on Mercedes Benz M Class, read this article content. - Cold start friction parts Mercedes Benz M Class :
If you know cold friction noises on Mercedes Benz M Class, it is pretty much 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 provoke a friction noise, often when cold. Visually check your belt and change it if necessary. 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 Benz M Class.
I listen a noise when starting my Mercedes Benz M Class even when hot
- rubber mount / silent bloc dead motor
If you listen 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 replaced. And the huge vibrations made by starting the engine can produce starting noise on Mercedes Benz M Class. Check their state and replace them if necessary. Browse this article content if you would like to have detailed information on rubber mount noises on Mercedes Benz M Class. - Motor flywheel
Finally, if you hear a noise that sounds a little like a crank noise when you start your Mercedes Benz M Class, even when hot, it is possible that if your series is equipped with a dual-mass flywheel, it is the origin of your trouble. Indeed, these parts have created a lot of trouble on many cars. When they take part in the game they produce noise when you start your Mercedes Benz M Class and when you turn off the engine. Have his state checked out by a mecanist.
