[TayF80]

I'm gettin a wierd rattle from my engine when decelerating or after just revving my engine. It happens when the engine is a lil colder. The dealership thinks it's the wastegates but after reading around i feel it's the diverter valves or charge pipe. Has anyone had this problem before or heard of this problem?
I've already replaced the wastegates once.

[forza1976]

wastegates for sure, if you are still on stock DV's they are plastic and likely won't hear any rattle.

[D335I]

I hear a little metallic/flicker when I apply the gas or let off the gas and was starting to wonder what it was. Just had the actuators done, still get rattle on a cold start up but it goes away after a minute or two. I give up, its just a noisy car.

[Ghines1279]

Originally Posted by D335I

I hear a little metallic/flicker when I apply the gas or let off the gas and was starting to wonder what it was. Just had the actuators done, still get rattle on a cold start up but it goes away after a minute or two. I give up, its just a noisy car.

After i had my wastegates/actuators/ turbos replaced, they started rattling again after like 3 days and 300 miles.(One trip to Miami From KW is like 150 miles.) also i noticed another rattle from the exhaust flapper. Do the exhaust flapper disconnect and see if maybe that is it.

[07_335i_AW]

Going to pick up my car from having the wastegates replaced for the rattle. Hopefully they realy fixed the rattle because the dealership is 1.5 hrs away. They upgraded the software first to no avail then they replaced the wastgates and they say it's good to go. We will see in the morning.

[Penn999]

I had my turbos replaced a couple thousand miles ago and since I got the new turbos and actuators they havent made one rattle. I heard it so loudly earlier and thought it was normal. Anyone who wants to see my warranty paperwork is more than welcome to pm me and I will forward you the picture. BTW, the actuators are what is making the sound, they get stuck when you decelerate and taper boost. They have found that the old factory springs in the actuators werent strong enough to handle the boost, especially on those that have upped their boost with a chip.

[Nick@aep]

Originally Posted by forza1976

wastegates for sure, if you are still on stock DV's they are plastic and likely won't hear any rattle.

x2- No way that the diverter valves can't make noise..

x2- wastegates can be noisy... I believe that the dealership can handle that for you during your warranty.

Originally Posted by D335I

I hear a little metallic/flicker when I apply the gas or let off the gas and was starting to wonder what it was. Just had the actuators done, still get rattle on a cold start up but it goes away after a minute or two. I give up, its just a noisy car.

Its def the wastegates. I have heard a little noise when the car is cold. Beside this- I always warm up my car enough. I've never had any annoying noises from day 1 -> today.

[Bakeme521]

I had my turbos replaced for wastegate rattle, I have a brand new set, less than 3k on them and they are doing the exact same thing. Brought it in and they said that it was a broken exhaust bracket. They replaced and it still doing it, my warranty goes up in a month they better fix this shit.

[TayF80]

Originally Posted by Bakeme521

I had my turbos replaced for wastegate rattle, I have a brand new set, less than 3k on them and they are doing the exact same thing. Brought it in and they said that it was a broken exhaust bracket. They replaced and it still doing it, my warranty goes up in a month they better fix this shit.

I'm in the same exact shoes as u r

[Forcefed3]

Originally Posted by Bakeme521

I had my turbos replaced for wastegate rattle, I have a brand new set, less than 3k on them and they are doing the exact same thing. Brought it in and they said that it was a broken exhaust bracket. They replaced and it still doing it, my warranty goes up in a month they better fix this shit.

That sucks, I hope they replace it for you! The dealers around here

[Thumperx]

Just wondering, how difficult is it to replace the turbos (diy)?

[Kolyan2k]

Took car to dealer because of wastegate rattle, got new turbos, next day notice that rattle is still there, disconnected exhaust valve, car is rattle-free now.

Learned that wastegate rattle was when the car is in N and you rev the engine, rattle when starting the car and decelerating was associated with exhaust valve.

[Thumperx]

Originally Posted by Thumperx

Just wondering, how difficult is it to replace the turbos (diy)?

Anyone???