Help with ratcheting sound after rev? *video*

[00SantorinS4]

Hey guys, I'm just curious if anyone might know this ratchet-like sound that winds down with the rev of the car. Any ideas?
Car is a 2010 2.0t, Tensioners and PCV have been done in the last 5k miles car has 115k and is stock. It drives totally fine and I can't hear any noise when driving and shifting gears.
I'm new to the car but I'm guessing it isn't 'normal'?

EDIT: A little research has come up with the probability of it being wastegate rattle and VW/Audi solved this with a metal clip you slip over the actuator. Does this sound right?

[Hunter2011]

My car is making the same sound, its probably the wastegate actuator. I'm taking it to get checked on Tuesday.

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If you drive over 5000 rpm for a bit does the p0299 check engine light come on?

[Liquid Smoke]

i get the same sound, and only hear it when revving down. i've had PCV breather and tensioner/chain also done already. but yeah i've narrowed it down to the wastegate too from what i've seen looking around. i'm gonna try and get it checked out sometime this week and will know for sure. hoping it's a relatively simple fix, my turbo is about 3 1/2 yrs old and barely at 50k miles.

[00SantorinS4]

Yeah let me know what you guys find. I'm new to the motor and the B8 chassis in general and I went out for a drive with my cousin who's a VW tech. There's definitely a flutter if I'm in 3rd and get into boost it just doesn't feel 100%. I'm going to replace the DV as well to see if that might contribute to the issue. I come from a 2014 Jetta SE with the 1.8t and that motor is dead silent compared to the loud 2.0t motor!

[treginginco]

Isn't that the fuel rail/injectors making that noise?


Sent from my iPhone using Audizine

[A4x]

Hey guys, I'm just curious if anyone might know this ratchet-like sound that winds down with the rev of the car. Any ideas?
Car is a 2010 2.0t, Tensioners and PCV have been done in the last 5k miles car has 115k and is stock. It drives totally fine and I can't hear any noise when driving and shifting gears.
I'm new to the car but I'm guessing it isn't 'normal'?

EDIT: A little research has come up with the probability of it being wastegate rattle and VW/Audi solved this with a metal clip you slip over the actuator. Does this sound right?

My car is making the same sound, its probably the wastegate actuator. I'm taking it to get checked on Tuesday.

- - - Updated - - -

If you drive over 5000 rpm for a bit does the p0299 check engine light come on?

i get the same sound, and only hear it when revving down. i've had PCV breather and tensioner/chain also done already. but yeah i've narrowed it down to the wastegate too from what i've seen looking around. i'm gonna try and get it checked out sometime this week and will know for sure. hoping it's a relatively simple fix, my turbo is about 3 1/2 yrs old and barely at 50k miles.

Yeah let me know what you guys find. I'm new to the motor and the B8 chassis in general and I went out for a drive with my cousin who's a VW tech. There's definitely a flutter if I'm in 3rd and get into boost it just doesn't feel 100%. I'm going to replace the DV as well to see if that might contribute to the issue. I come from a 2014 Jetta SE with the 1.8t and that motor is dead silent compared to the loud 2.0t motor!

I had this exact same noise, when the engine is winding down or coasting....it is 100% the turbo wastegate.

When the car was cold (make sure cold!), I reached my hand under the exhaust manifold and could barely feel the wastegate rod on the turbo. With the tip of my finger that I could get on there, I was able to move the rod back and forth (like from left side of car to right), which meant it was loose.

Took the car into a dealership, they investigated the noise, and replaced the turbo. Said the bushing inside the wastegate was loose. It is a very common issue on these cars, and we all have our turbo warranty extended to 8 years / 130000 km because of this issue. If you fit inside this, go to a dealer and get a new turbo. Otherwise, I think it is OK to drive until ultimately your turbo will fail and you will get a CEL for low boost.

[Liquid Smoke]

is there some kind of fix where the rod is replaced or something? i'm beyond that warranty period now, and i actually got a new turbo about 3 years and 60k miles ago, but it was done at an independent shop when i had to get my engine rebuilt, and i dont think Audi is going to cover that, i dont have any specific receipt for that replaced turbo or anything either. so i'm hoping i dont have to end up replacing the whole turbo again if it's something that can be fixed. and just my luck i had powertrain warranty expire a few months ago, although i doubt dealer would want to cover it unless it actually failed.

EDIT: just talked with a friend who works as an Audi tech, and he says that it's part of the turbo and you have to replace the whole thing. interested to hear what anyone else has done, any luck rebuilding this?

i'm wondering if i have no other choice but to replace it, should i just go for the K04? i'll get an HFC, and of course need the tune, but beyond that is anything else required for the k04 or is it mostly a straight swap. im not worried if i dont maximize the k04 output for now, can get bolt ons later i guess, but just want to see how complicated and direct the k04 swap is.

[nycaudi]

Hate to be the bearer of bad news but it's the waste gate. It's as loose as Paris Hilton and Kim Kardashian

[Frogdude]

I performed the wastegate actuator shaft shortening discussed in this thread:
http://www.audizine.com/forum/showth...lapper-(P0299)

Just did it this past weekend. Turned out great. No more noise plus a small increase in boost, earlier spooling. For the exhaust side, I was able to move the cat over far enough to remove the clip without having to unhook anything else in the exhaust except for the 4 nuts connecting the exhaust to the turbo.
Cost was less than $10. We'll see how long it holds up.