What could possibly be more frustrating than noises when you start your car… In fact, you probably previously came across noises when you start your Audi A4 and in general it’s frustrating. It might not be anything major, 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 editorial staff has made the decision to compose this document to support you find its source. To do this, first, we will see the case of noise when starting on Audi A4 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 Audi A4, but the engine doesn’t start
I detect a clicking noise at the start of my Audi A4
If you listen to a noise when you want to start your car, and it does not want to turn on, it is very likely that it is the battery that is contributing to the problem. In fact, if you experience clicking noise when you start your Audi A4, and it sounds like a ticking, you almost certainly lack the energy to run your starter, test your battery with a voltmeter and swap it if required. In case that after checking out your battery, you still encounter a noise when starting your Audi A4 and it does not want to start, consult this content page about starter motor noises on Audi A4 for more information and to find the source of your problem.
I acknowledge a noise when I start my Audi A4 but the engine it starts
I listen to a noise when I start my Audi A4
- Grinding or squealing type noises when I start cold Audi A4 :
If you listen to a noise when you start your Audi A4, and this noise is 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. In fact if you have an air/fuel mixture that is not good the normal performance of the engine will be altered. Verify the state of your injectors and air intake system. For more information on the source of injection-related noises on Audi A4, check out this content.
- Cold start friction parts Audi A4 :
If you notice cold friction noises on Audi A4, 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 verify your belt and swap it if required. If you have other friction noises, and it doesn’t originate from your serpentine belt, we have a full content page on engine of your Audi A4.
I listen to a noise when starting my Audi A4 even when hot
- rubber mount / silent bloc dead motor
If you listen to a clacking noise just 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 generated by starting the engine can generate starting noise on Audi A4. Verify their state and change them if required. Browse this content page if you would like to have detailed information on rubber mount noises on Audi A4.
- Motor flywheel
Finally, if you discern a noise that sounds a little like a crank noise when you start your Audi A4, even when hot, it is possible 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 vehicles. When they take part in the game they generate noise when you start your Audi A4 and when you turn off the engine. Have his state checked out by a mecanist.