What could be more disturbing than noises when you start your car… In fact, you plausibly already listened to noises when you start your BMW X4 and usually it’s frustrating. It could 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 decided to write this content to support you find its origin. To do this, first, we will see the case of noise when starting on BMW X4 but the car does not start, and finally, the noise you can feel on your car if it starts, first cold and then hot.noise-when-starting-bmw-x4

I hear a noise when I try to start my BMW X4, but the engine doesn’t start

I identify a clicking noise at the start of my BMW X4

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 X4, 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 required. In the case that after examining your battery, you still experience a noise when starting your BMW X4 and it does not want to start, refer to this content about starter motor noises on BMW X4 for more information and to find the origin of your trouble.

I perceive a noise when I start my BMW X4 but the engine it starts

I hear a noise when I start my BMW X4

  • Grinding or squealing type noises when I start cold BMW X4 :
    If you hear a noise when you start your BMW X4, and this noise sounds like grinding or squealing noise, which can also be connected 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 general performance of the engine will be altered. Examine the state of your injectors and air intake system. For more information on the origin of injection-related noises on BMW X4, look at this article.
  • Cold start friction parts BMW X4 :
    If you encounter cold friction noises on BMW X4, 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 plausible 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 verify 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 X4.

I hear a noise when starting my BMW X4 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 good to be swapped. And the huge vibrations made by starting the engine can create starting noise on BMW X4. Examine their state and change them if necessary. Browse this content if you would like to have detailed information on rubber mount noises on BMW X4.
  • Motor flywheel
    Finally, if you experience a noise that sounds a little like a crank noise when you start your BMW X4, even when hot, it is plausible that if your series is equipped with a dual-mass flywheel, it is the origin of your concerns. In fact, these parts have created a lot of concerns on many vehicles. When they take part in the game they produce noise when you start your BMW X4 and when you turn off the engine. Have his state inspected by a mecanist.