What could be more distressing than noises when you start your vehicle… Indeed, you maybe already discovered noises when you start your Audi A6 and in general it’s frustrating. It may not be anything serious, but each new engine starts usually will turn into a scary moment during which you don’t know if your engine will start. That is why our team has made the decision to write this article to support you find its origin. To do this, first, we will see the case of noise when starting on Audi A6 but the vehicle does not start, and finally, the noise you can encounter on your vehicle if it starts, first cold and then hot.
I notice a noise when I try to start my Audi A6, but the engine doesn’t start
I perceive a clicking noise at the start of my Audi A6
If you notice a noise when you want to start your vehicle, and it does not want to turn on, it is likely that it is the battery that is contributing to the issue. Indeed, if you hear clicking noise when you start your Audi A6, and it sounds like a ticking, you almost certainly lack the energy to run your starter, check your battery with a voltmeter and replace it if necessary. In the event that after checking your battery, you still know a noise when starting your Audi A6 and it does not want to start, browse this article about starter motor noises on Audi A6 for more information and to find the source of your issue.
I hear a noise when I start my Audi A6 but the engine it starts
I notice a noise when I start my Audi A6
- Grinding or squealing type noises when I start cold Audi A6 :
If you notice a noise when you start your Audi A6, and this noise looks like grinding or squealing noise, which can also be relating to vibrations, it is plausible that it is the combustion of your vehicle that is involved. Indeed if you have an air/fuel mixture that is not good the normal running of the engine will be altered. Check the state of your injectors and air intake system. For more information on the origins of injection-related noises on Audi A6, read this article. - Cold start friction parts Audi A6 :
If you notice cold friction noises on Audi A6, it is practically 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 provoke a friction noise, often when cold. Visually examine your belt and replace 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 Audi A6.
I notice a noise when starting my Audi A6 even when hot
- rubber mount / silent bloc dead motor
If you notice 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 swapped. And the huge vibrations made by starting the engine can produce starting noise on Audi A6. Check their state and swap them if needed. Read this article if you would like to have detailed information on rubber mount noises on Audi A6. - Motor flywheel
Finally, if you discern a noise that sounds a little like a crank noise when you start your Audi A6, even when hot, it is plausible that if your series is equipped with a dual-mass flywheel, it is the source of your problems. Indeed, these parts have created a lot of problems on many cars. When they take part in the game they generate noise when you start your Audi A6 and when you turn off the engine. Have his state checked out by a specialist.
