What could be more frustrating than noises when you start your automobile… In fact, you plausibly previously heard noises when you start your Mercedes Benz CLA Class and usually 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 team has decided to produce this document to support you find its origin. To do this, first, we will see the case of noise when starting on Mercedes Benz CLA Class but the automobile does not start, and finally, the noise you can feel on your automobile if it starts, first cold and then hot.
I acknowledge a noise when I try to start my Mercedes Benz CLA Class, but the engine doesn’t start
I identify a clicking noise at the start of my Mercedes Benz CLA Class
If you acknowledge a noise when you want to start your automobile, and it does not want to turn on, it is very likely that it is the battery that is triggering the trouble. In fact, if you hear clicking noise when you start your Mercedes Benz CLA Class, and it sounds like a ticking, you most likely lack the energy to run your starter, test out your battery with a voltmeter and swap it if necessary. In the case that after checking your battery, you still experience a noise when starting your Mercedes Benz CLA Class and it does not want to start, consult this article content about starter motor noises on Mercedes Benz CLA Class for more info and to discover the source of your trouble.
I acknowledge a noise when I start my Mercedes Benz CLA Class but the engine it starts
I acknowledge a noise when I start my Mercedes Benz CLA Class
- Grinding or squealing type noises when I start cold Mercedes Benz CLA Class :
If you acknowledge a noise when you start your Mercedes Benz CLA Class, and this noise looks like grinding or squealing noise, which can also be connected to vibrations, it is plausible that it is the combustion of your automobile that is involved. In fact 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 info on the source of injection-related noises on Mercedes Benz CLA Class, read this piece of content. - Cold start friction parts Mercedes Benz CLA Class :
If you discern cold friction noises on Mercedes Benz CLA Class, it is almost 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 plausible that the tensioner roller or damper pulley is worn out and that as a result the extension belt causes a friction noise, often when cold. Visually check your belt and swap 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 Benz CLA Class.
I acknowledge a noise when starting my Mercedes Benz CLA Class even when hot
- rubber mount / silent bloc dead motor
If you acknowledge a clacking noise just when you start your car’s engine and it is more than 100,000 km long, it is plausible that some of your engine silentblocks or rubber mounts are good to be replaced. And the huge vibrations produced by starting the engine can produce starting noise on Mercedes Benz CLA Class. Verify their state and replace them if necessary. Browse this article content if you would like to have detailed info on rubber mount noises on Mercedes Benz CLA Class. - Motor flywheel
Finally, if you notice a noise that sounds a little like a crank noise when you start your Mercedes Benz CLA Class, even when hot, it is plausible 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 automobiles. When they take part in the game they produce noise when you start your Mercedes Benz CLA Class and when you turn off the engine. Have his state inspected by a mecanist.
