What could possibly be more annoying than noises when you start your car… Indeed, you probably previously noticed noises when you start your Bmw Serie 3 and generally it’s frustrating. It might not be anything severe, 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 chosen to produce this content page to help you find its origin. To do this, first, we will see the case of noise when starting on Bmw Serie 3 but the car does not start, and finally, the noise you can feel on your car if it starts, first cold and then hot.
I listen to a noise when I try to start my Bmw Serie 3, but the engine doesn’t start
I identify a clicking noise at the start of my Bmw Serie 3
If you listen to 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 problem. Indeed, if you notice clicking noise when you start your Bmw Serie 3, and it sounds like a ticking, you almost certainly lack the energy to run your starter, test out your battery with a voltmeter and swap it if necessary. In the event that after looking at your battery, you still experience a noise when starting your Bmw Serie 3 and it does not want to start, refer to this article about starter motor noises on Bmw Serie 3 for more details and to discover the origin of your problem.
I listen to a noise when I start my Bmw Serie 3 but the engine it starts
I listen to a noise when I start my Bmw Serie 3
- Grinding or squealing type noises when I start cold Bmw Serie 3 :
If you listen to a noise when you start your Bmw Serie 3, and this noise sounds like grinding or squealing noise, which can also be related to vibrations, it is possible that it is the combustion of your car that is involved. Indeed 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 details on the source of injection-related noises on Bmw Serie 3, check out this piece of content. - Cold start friction parts Bmw Serie 3 :
If you experience cold friction noises on Bmw Serie 3, it is almost 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 make a friction noise, often when cold. Visually examine your belt and swap it if required. If you have other friction noises, and it doesn’t result from your serpentine belt, we have a full article on engine of your Bmw Serie 3.
I listen to a noise when starting my Bmw Serie 3 even when hot
- rubber mount / silent bloc dead motor
If you listen to a clacking noise 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 dead. And the huge vibrations produced by starting the engine can generate starting noise on Bmw Serie 3. Examine their state and replace them if required. Read this article if you would like to have detailed details on rubber mount noises on Bmw Serie 3. - Motor flywheel
Finally, if you have a noise that sounds a little like a crank noise when you start your Bmw Serie 3, even when hot, it is possible that if your series is equipped with a dual-mass flywheel, it is the origin of your concerns. Indeed, these parts have created a lot of concerns on many vehicles. When they take part in the game they generate noise when you start your Bmw Serie 3 and when you turn off the engine. Have his state examined by a specialist.
