[adeljobran718]

So i have a loud rattle coming from passenger side of enginge bay but only when i start it at a cold start and goes away after warm up i never hear it when acelerating. Any inputs on what it could be is it wastegate rattle or would it be a constant rattle if it was?

[boost junkie]

Those are your wastegates rattling.

[adeljobran718]

So if i take it for warranty and it only rattles on coldstart will they change them?

[bmwarg]

Originally Posted by adeljobran718

So if i take it for warranty and it only rattles on coldstart will they change them?

I was wondering the same thing. Will they change your wastegate if only on a cold start? Also, will they change if you have catless downpipes?

[musc]

Originally Posted by bmwarg

I was wondering the same thing. Will they change your wastegate if only on a cold start? Also, will they change if you have catless downpipes?

No. The cold start rattle is fairly common. Whether or not they will warranty your turbos with carless DPs really depends on how lenient your dealership is. I would say the majority won't.