MK6 GTI - Rattle upon acceleration - Resolved via TPI: 2021062/7

[kennyc]

Another short recording - noise can be heard only in the first part of that video :

http://s853.photobucket.com/albums/a...rent=GTI-2.flv

Is it from 0.11-0.19 in the video and does it sound like the indicator, thats what it sounds like to me.

[MIRSAD]

That was indicator - sorry but it is looking that recording is not good enough ...

Just once more.
It is noise between 2000 - 3000 RPM when you accelerate faster
You have normal deep engine noise plus (for few seconds) that "not deep" noise like shshshshshs.
It is more noticeable when You drive - I can hear it even with closed windows

German and UK forums are also talking about that noise.

[Christopher]

Yeh, I can hear it... Well I think I can anyway. Does it happen within the first 6 sec's of the video? you can hear a softer kinda wraspy noise....

[MIRSAD]

Yeh, I can hear it... Well I think I can anyway. Does it happen within the first 6 sec's of the video? you can hear a softer kinda wraspy noise....

Yes it is.

And I think it is more noticeable on that first recording.
Try to separate that deep engine noise from other noises and than concentrate on them ... not easy if you are not sure what are you looking for.

[Christopher]

Cool.. Well not really but at least I know what it sounds like now... I'll be sure to keep an ear out when mine arrives.. I must say that I didn't notice it when I went for my test drives... Even though I wasn't paying attention, you still would have been able to hear it if it was that obvious..

ps, i was able to hear it pretty clearly on the second (GTI-2.flv) video too.

[MIRSAD]

Have you got the time in the video when it happens. Because it seems I can pick it up but im not too sure...

It is most noticeable between 00:08 - 00:12 and about 00:26 - First recording

http://s853.photobucket.com/albums/ab95/mirsad99/?action=view&current=GTI-1.flv

and 00:02 - 00:05 - Second recording

http://s853.photobucket.com/albums/ab95/mirsad99/?action=view&current=GTI-2.flv

[kennyc]

Yeh, I can hear it... Well I think I can anyway. Does it happen within the first 6 sec's of the video? you can hear a softer kinda wraspy noise....

Yeah i think i can hear it as well, sounds like the turbo but more "whispy".

[MurphyTheElf]

http://s853.photobucket.com/albums/a...rent=GTI-2.flv

This is actually a very good sample of the noise, but not as noticeable as being in the cabin. It's the rattly sound that occurs almost from the very beginning - especially as the tacho sits on about 2500rpm.

[STV4SYT]

Yeah, defo at 25000 on the nose every time.

I just filled up with a tank of 95 last night. Only put in 49l though so still got about 10% 98 still in there.

The noise is still there, and if anything more prominent, can even hear it inside with windows up and radio on this morning on the way to work.

Gonna be in the service centre later this week and will try to recreate it for one of the mechanics.

[Corey_R]

Yeah, defo at 25000 on the nose every time.

I'd be thinking you'd have more than just a rattle at 25,000 rpm hehe

[DonkeyKong]

The rattle in my GTI is getting louder. Not sure whether my ear has been trained to pick this up or it is in fact louder.

[Duke996]

The rattle in my GTI is getting louder. Not sure whether my ear has been trained to pick this up or it is in fact louder.

Mate I test drove a red DSG with about 200 k's on the clock on the weekend. Even my girlfriend could hear the rattle. Both windows were up and the Aircon was on. The tank was full. I mentioned it to the dealer and of course he didn't know anything about it and had never heard of it....

I also drove the manual and couldn't replicate the sound.
Besides the rattle I still prefer the manual,went for spin up Mt Dandenong tourist road and still felt the DSG does whatever the hell it wants anyway. I reckon I'd use the padels for about a week and then it would be full auto mode.....manual is much more fun. Beautiful short, slick and accurate throw and a feather light clutch...love it..

[ripblade]

hey guys,

I went over to my dealer today to show him the rattle, before he even jumped in the car he has the disclaimer printed out, It looks like most dealers are already prepared and quite savvy with the problem.......

I'm going to try and get one of my acmi friends to see if he can record the sound clearly this weekend.

[DonkeyKong]

Another interesting observation.

The rattle seems to be much better since my tank has been half emptied. This account for my initial observation that it started after I refilled my tank to full level. I left the dealer with only half filled tank.

[Corey_R]

I was already dubious enough when people were thinking that the octane of the fuel (95 vs 9 was affecting this rattle, which is apparently the rod operating the wastegate. But how on earth could the tank being half full instead of full affect the rod operating the wastegate? I mean, fuel tank pressure would have no affect on even the fuel supply with these cars due to the HPFP and all that. Even then, it'd be fuel supply, nothing to do with the operation of a rod on a wastegate.
The only thing which could be influenced here is weight, causing the car to be at a slightly different angle (due to less weight at the back) - but then that would mean that even slight gradiant changes in the road surface would affect this rattle.

I don't know man... I'd say that changes in temp in Melbourne would be more likely to have an affect on this than how full your petrol tank is...