B8.5 Audi S4 engine ticking (cold start)
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- เผยแพร่เมื่อ 17 ต.ค. 2024
- The ticking sound comes on gradually, you can notice the difference at 0:40 (starts getting worse from 0:45) and 0:55 filmed at wheel well.
When firing the car up again the loud ticking is instantly there. When started again after a long delay there is no ticking at first.
Hey! I'm having the exact same noise starting on my 2016 SQ5 ( 100K miles). The noise does not happen until the car is warmed up, but it sounds the exact same and my noise is also coming from the front bottom left corner of the engine. Ever figure out what it was?!?! I was thinking maybe AC Compressor, or is it waterpump? I originally though maybe chains but doesn't seem to be it.
I have almost the same noice on mine, did you have to change them parts you mentioned above?
It is a lot of work so always makes sense to change all chains and guides etc. Changing them fixed my issue.
@@Renarl Did you find any obvious damage/wear to the guides, chain, or flywheel?
My 2017 Q7 makes this same noise but at a lower tempo.
@@SonicSuperWaffle You could see the guides were a little worn (some more than others) and chains had "stretched" so they had more play than they should. The mechanic spotted it inmediately when the engine was out.
@@Renarl Gotcha, thanks for the info!
Hi, could you please mention what mileage did you have when this started to happen?
It was at 57k miles but I hear it is common in the range around 40-80k
@@Renarl Thanks! Mine is 94k and when cold started it does that "zzzt" noise right after engine starts: th-cam.com/video/fPgKEvjRP4Q/w-d-xo.html . I've read that if its between 1 and 3 seconds it isn't anything to worry about, but I can hear it for a split second from your engine too. So I'm kind of worried should I go for the huge repair or it can be delayed for now.
@@marto7777777 until it starts ticking like this and stays this way you should be ok. It is a problem if it does not go away in a few seconds. Hope all works out fine
@@Renarl Thanks for the info!
What mileage this car
It happened at 60k miles
Ever figure out what it was?
Timing chains/guides and flywheel
Did you found out what was the problem as I am having a sale sound on my s5
Timing chains/guides
@@Renarl th-cam.com/video/v3pdawEDPhc/w-d-xo.html
@@Renarl could you please check my vid and see the sound mine is a bit more knocking but it's last for 5 minutes and then goes once the engine is warm.
@@DJSHUJ did my search since I have the same ticking noise on my 2012 s4 and it says that it is either the upper chain guides, or two oil check valves under the supercharger that went bad, or the fuel injector. None of those issues are dangerous for the engine except for the low oil level which probably mean you should change your PCV valve and check for vaccum leaks, some folks told me there engine had that sound for a 100 000 miles since new and the dealer said it is normal, so I would not worry about this
th-cam.com/video/FMWwLGhaxcU/w-d-xo.html
You could ask you mechanic to Check the wear of you timing chains but unless your car sound like the one in the link , your chains guides should be fine for a long time, unless you are treating your car badly
Did anyone else wonder that the noise is only there when the thermostat is closed making me think if it was chain noise it would be there all the time and if you leave the car for 3 hours enough time for oil to drop down but not enough time for the engine to cool down the noise only runs a sort time as the thermostat opens quickly and if you look at your temperature gauge as soon as the needle moves the noise stops so I think its water pump or thermostat done some reading and found a guy that noticed the same and changed both noise gone I wonder if the guy that put this video up changed them when doing the chains I think he would as it was down that far and maybe fixed it in the process
The timing chain rattle is a known problem that may occur
99% of all v6. . V8. . . V10. . . V12 engines ticking on cold start!!!!!!!!and drinking oil!!!!!. .