What can be more disturbing than noises when you start your car… In fact, you probably previously noticed noises when you start your BMW 2 Series and in general it’s frustrating. It might not be anything major, 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 editorial staff has made the decision to create this content page to support you find its origin. To do this, first, we will see the case of noise when starting on BMW 2 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 hear a noise when I try to start my BMW 2 Series, but the engine doesn’t start
I identify a clicking noise at the start of my BMW 2 Series
If you hear a noise when you want to start your car, and it does not want to turn on, it is most likely that it is the battery that is causing the trouble. In fact, if you perceive clicking noise when you start your BMW 2 Series, and it sounds like a ticking, you almost certainly lack the energy to run your starter, check your battery with a voltmeter and swap it if required. In the event that after looking at your battery, you still encounter a noise when starting your BMW 2 Series and it does not want to start, refer to this article about starter motor noises on BMW 2 Series for more information and to discover the origin of your trouble.
I acknowledge a noise when I start my BMW 2 Series but the engine it starts
I hear a noise when I start my BMW 2 Series
- Grinding or squealing type noises when I start cold BMW 2 Series :
If you hear a noise when you start your BMW 2 Series, and this noise looks like grinding or squealing noise, which can also be related to vibrations, it is plausible 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 performance of the engine will be altered. Verify the condition of your injectors and air intake system. For more information on the source of injection-related noises on BMW 2 Series, check out this article. - Cold start friction parts BMW 2 Series :
If you notice cold friction noises on BMW 2 Series, it is pretty much 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 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 examine your belt and swap it if needed. If you have other friction noises, and it doesn’t originate from your serpentine belt, we have a full article on engine of your BMW 2 Series.
I hear a noise when starting my BMW 2 Series even when hot
- rubber mount / silent bloc dead motor
If you hear a clacking noise 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 dead. And the huge vibrations generated by starting the engine can make starting noise on BMW 2 Series. Verify their condition and swap them if needed. Browse this article if you would like to have detailed information on rubber mount noises on BMW 2 Series. - Motor flywheel
Finally, if you perceive a noise that sounds a little like a crank noise when you start your BMW 2 Series, even when hot, it is plausible that if your series is equipped with a dual-mass flywheel, it is the origin of your problems. In fact, these parts have created a lot of problems on many cars. When they take part in the game they produce noise when you start your BMW 2 Series and when you turn off the engine. Have his condition inspected by a professional.
