Strange Whistle on Cold Start

[Serb404]

Originally Posted by X5chemist

Some pulleys can whistle at certain RPMs or load. The only way to know is to remove the belt and spin them by hand. If you feel any friction or noise, even one bearing inside will ruin the rest.

yeah no friction or noise at all, when I do a cold start everything seems proper, I just got a cold air intake so that will free up some room to see the pulleys lol but I'm going to wait until that valve comes in next week before analyzing it further too, excited to get my interior wrapped gloss black Friday too, I can't do the wooden trim anymore

[andrewwynn]

I was so happy my e53 came with black trim. Wife's had the fake wood. Not a fan!

My e70 has a tiny bit of wood but it's holding up


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[Serb404]

Originally Posted by andrewwynn

I was so happy my e53 came with black trim. Wife's had the fake wood. Not a fan!

My e70 has a tiny bit of wood but it's holding up


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yeah I think it's time, taking it tomorrow to get all the work done, decided with inozetek super gloss black which has a nicer finish and will modernize the car a bit more rather than the traditional standard 3M gloss black wrap

[Serb404]

I'm taking it in on Wednesday, literally have no idea what this whistle sound is anymore

[X5chemist]

Could it be inside? My blower motor or dash temp motor whistle now and then. Sometimes, I think it’s the rear blower motor when it starts up.

[Serb404]

Originally Posted by X5chemist

Could it be inside? My blower motor or dash temp motor whistle now and then. Sometimes, I think it’s the rear blower motor when it starts up.

def not, seems to be in the back of the manifold, told the stealer dealer to please look into it and I asked for a specific mechanic to look at it that I know is trustworthy on the older bmw models, I legit am the only one in my area with an E53 lol