Scary sound n54 with revs

Zef · 10-10-2017, 12:51 AM

Quote:

Originally Posted by MJ80.

Could it be belt or tensioner/related to any pully possibly?

i remove belt, and sound persist. Chain tensioner - does not look like.

MJ80. · 10-10-2017, 04:05 AM

Oil analysis? See if signs of somthing wrong internally ? Its cheap.

guop · 10-10-2017, 11:19 AM

sounded exctly how much car sounded when i had just installed my downpipes, they were loose so I had a leak in the exhaust which caused that "helicopter" sound

Zef · 10-12-2017, 12:08 AM

Quote:

Originally Posted by guop

sounded exctly how much car sounded when i had just installed my downpipes, they were loose so I had a leak in the exhaust which caused that "helicopter" sound

where exactly was the leak?

guop · 11-06-2017, 04:43 PM

Quote:

Originally Posted by Zef

where exactly was the leak?

Connection from downpipe to rear exhaust

Zef · 03-22-2018, 09:40 AM

any updates?

Zef · 03-22-2018, 09:50 AM

by the way, i flash car with MHD stage1. Car rides, perfectly, no check, but this sound make me mad.

10-10-2017, 04:05 AM	#46
MJ80. Major 204 Rep 1,103 Posts Drives: E92 335i DCT Individual Join Date: Oct 2013 Location: Gold Coast, Australia. iTrader: (0)	Oil analysis? See if signs of somthing wrong internally ? Its cheap.
	Appreciate 0 Quote

10-10-2017, 11:19 AM	#47
guop First Lieutenant 23 Rep 346 Posts Drives: n54 E90 Msport Join Date: Aug 2014 Location: Atlanta Georgia iTrader: (4)	sounded exctly how much car sounded when i had just installed my downpipes, they were loose so I had a leak in the exhaust which caused that "helicopter" sound
	Appreciate 0 Quote

03-22-2018, 09:40 AM	#50
Zef New Member 6 Rep 28 Posts Drives: 335xi 2008 Join Date: Mar 2017 Location: Russia iTrader: (0)	any updates?
	Appreciate 0 Quote

03-22-2018, 09:50 AM	#51
Zef New Member 6 Rep 28 Posts Drives: 335xi 2008 Join Date: Mar 2017 Location: Russia iTrader: (0)	by the way, i flash car with MHD stage1. Car rides, perfectly, no check, but this sound make me mad.
	Appreciate 0 Quote