What can be more disturbing than noises when you start your car… Indeed, you maybe previously found out noises when you start your Volkswagen Polo 4 and in general it’s frustrating. It could not be anything serious, 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 prepare this article to support you find its source. To do this, first, we will see the case of noise when starting on Volkswagen Polo 4 but the car does not start, and finally, the noise you can experience on your car if it starts, first cold and then hot.
I listen a noise when I try to start my Volkswagen Polo 4, but the engine doesn’t start
I find out a clicking noise at the start of my Volkswagen Polo 4
If you listen 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 experience clicking noise when you start your Volkswagen Polo 4, and it sounds like a ticking, you most likely lack the energy to run your starter, check your battery with a voltmeter and change it if necessary. In case that after checking your battery, you still know a noise when starting your Volkswagen Polo 4 and it does not want to start, refer to this article about starter motor noises on Volkswagen Polo 4 for more details and to find the source of your problem.
I perceive a noise when I start my Volkswagen Polo 4 but the engine it starts
I listen a noise when I start my Volkswagen Polo 4
- Grinding or squealing type noises when I start cold Volkswagen Polo 4 :
If you listen a noise when you start your Volkswagen Polo 4, 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. Indeed 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 details on the origins of injection-related noises on Volkswagen Polo 4, check out this content. - Cold start friction parts Volkswagen Polo 4 :
If you notice cold friction noises on Volkswagen Polo 4, 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 plausible 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 change 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 Volkswagen Polo 4.
I listen a noise when starting my Volkswagen Polo 4 even when hot
- rubber mount / silent bloc dead motor
If you listen a clacking noise just as 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 changed. And the huge vibrations generated by starting the engine can produce starting noise on Volkswagen Polo 4. Verify their state and replace them if needed. Browse this article if you would like to have detailed details on rubber mount noises on Volkswagen Polo 4. - Motor flywheel
Finally, if you discern a noise that sounds a little like a crank noise when you start your Volkswagen Polo 4, even when hot, it is plausible that if your series is equipped with a dual-mass flywheel, it is the source of your trouble. Indeed, these parts have created a lot of trouble on many vehicles. When they take part in the game they make noise when you start your Volkswagen Polo 4 and when you turn off the engine. Have his state checked by a professional.
