Strange noise in the engine

pak84 · 05-27-2021, 02:40 AM

Hi all,
can I ask you for advice, I find some strange background ticking noise from the engine or gerabox. It's not depending from the temprature of the engine. I wonder if it's normal sound for 3.0 M57tu2 or I have some problem?

pak84 · 05-29-2021, 08:33 AM

I forgot that the noise persist more than 8k miles without change

POBEP · 06-10-2021, 12:10 AM

Quote:

Originally Posted by pak84

I forgot that the noise persist more than 8k miles without change

I have E90 & E70, both are M57Y (M57TU2TOP)

E70 makes exactly same noise (90K mi), E90 - absolutely quiet (132K mi).

It could be number of things.

My online search suggested failing vacuum pump.

However, the stethoscope suggests that it is coming from the injector #1.

I first noticed the noise at ~ 72K mi.
It did not got worse or better during last 3 years / 18K mi.

Would be great to know what causes yours.

pak84 · 06-10-2021, 02:36 AM

Hello, first of all, when taking off the oil cap, it's normal to start knocking, no problem with that. When the cap is on his place, I just hear normal or almost normal knocking of injectors in additional the engine cover seems to be missing (it absorbe a lot of the noise), I think you have no reason to worry.

05-27-2021, 02:40 AM	#1
pak84 New Member 3 Rep 12 Posts Drives: X3 e83 Join Date: May 2021 Location: far iTrader: (0)	Strange noise in the engine Hi all, can I ask you for advice, I find some strange background ticking noise from the engine or gerabox. It's not depending from the temprature of the engine. I wonder if it's normal sound for 3.0 M57tu2 or I have some problem?
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05-29-2021, 08:33 AM	#2
pak84 New Member 3 Rep 12 Posts Drives: X3 e83 Join Date: May 2021 Location: far iTrader: (0)	I forgot that the noise persist more than 8k miles without change
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06-10-2021, 02:36 AM	#4
pak84 New Member 3 Rep 12 Posts Drives: X3 e83 Join Date: May 2021 Location: far iTrader: (0)	Hello, first of all, when taking off the oil cap, it's normal to start knocking, no problem with that. When the cap is on his place, I just hear normal or almost normal knocking of injectors in additional the engine cover seems to be missing (it absorbe a lot of the noise), I think you have no reason to worry.
	Appreciate 2 POBEP364.00 robnitro160.00 Quote