What could be more distressing than noises when you start your car… In fact, you probably previously heard noises when you start your BMW 5 Series and usually it’s frustrating. It could not be anything major, 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 editorial staff has decided to compose this content to support you find its source. To do this, first, we will see the case of noise when starting on BMW 5 Series but the car does not start, and finally, the noise you can encounter on your car if it starts, first cold and then hot.
I experience a noise when I try to start my BMW 5 Series, but the engine doesn’t start
I find out a clicking noise at the start of my BMW 5 Series
If you experience a noise when you want to start your car, and it does not want to turn on, it is likely that it is the battery that is contributing to the issue. In fact, if you hear clicking noise when you start your BMW 5 Series, 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 required. In the case that after examining your battery, you still know a noise when starting your BMW 5 Series and it does not want to start, read this content about starter motor noises on BMW 5 Series for more information and to find the source of your issue.
I acknowledge a noise when I start my BMW 5 Series but the engine it starts
I experience a noise when I start my BMW 5 Series
- Grinding or squealing type noises when I start cold BMW 5 Series :
If you experience a noise when you start your BMW 5 Series, and this noise is like grinding or squealing noise, which can also be related to vibrations, it is conceivable that it is the combustion of your car 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. Examine the state of your injectors and air intake system. For more information on the origins of injection-related noises on BMW 5 Series, consult this content. - Cold start friction parts BMW 5 Series :
If you experience cold friction noises on BMW 5 Series, it is practically 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 necessary. If you have other friction noises, and it doesn’t originate from your serpentine belt, we have a full content on engine of your BMW 5 Series.
I experience a noise when starting my BMW 5 Series even when hot
- rubber mount / silent bloc dead motor
If you experience 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 good to be changed. And the huge vibrations generated by starting the engine can generate starting noise on BMW 5 Series. Examine their state and change them if necessary. Read this content if you would like to have detailed information on rubber mount noises on BMW 5 Series. - Motor flywheel
Finally, if you experience a noise that sounds a little like a crank noise when you start your BMW 5 Series, even when hot, it is conceivable that if your series is equipped with a dual-mass flywheel, it is the source of your concerns. In fact, these parts have created a lot of concerns on many automobiles. When they take part in the game they make noise when you start your BMW 5 Series and when you turn off the engine. Have his state inspected by a mecanist.
