"Hissing" sound from shocks

NickBlaine · 07-20-2014, 10:48 AM

Over any bump/unevenness in the road, however slight, the shocks make a "hiss" noise (best way to describe it). I have a '10 335 xi. Didn't know if this was normal, or if I should have the shocks checked out. Probably a noob question, but you never know until you ask....

WilliamS · 07-20-2014, 11:55 AM

Both my 2008 and 2009 do it, my Grand Cherokee does it as well.

tmarts · 07-20-2014, 11:59 AM

I have a 2006 bmw 325xi with 88k miles that makes the same sound you are describing...from what I've heard it's normal, especially for older shocks.

ashmostro · 07-20-2014, 12:16 PM

if it's a larger bump, that's the blowoff valving in the shock doing its job.

If it's making that sound over even the slightest imperfection, you may have blown shocks. Unlikely at lower mileage though - what is yours?

andrey_gta · 07-20-2014, 02:29 PM

It means your shock is healthy

My blown one didnt do that anymore lol

NickBlaine · 07-20-2014, 05:32 PM

I am at 55k miles right now. None of my previous 7 cars have done this, so I found it a bit odd/annoying.

07-20-2014, 10:48 AM	#1
NickBlaine First Lieutenant 63 Rep 298 Posts Drives: '10 335XI Join Date: Dec 2013 Location: Indiana iTrader: (0)	"Hissing" sound from shocks Over any bump/unevenness in the road, however slight, the shocks make a "hiss" noise (best way to describe it). I have a '10 335 xi. Didn't know if this was normal, or if I should have the shocks checked out. Probably a noob question, but you never know until you ask....
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07-20-2014, 11:55 AM	#2
WilliamS GoofBall 50 Rep 1,055 Posts Drives: 2008 E92 N54 Xdrive Join Date: Jun 2012 Location: Tampa, FL iTrader: (2)	Both my 2008 and 2009 do it, my Grand Cherokee does it as well.
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07-20-2014, 11:59 AM	#3
tmarts Enlisted Member 3 Rep 26 Posts Drives: 2006 BMW 325xi Join Date: Dec 2013 Location: Upstate New York iTrader: (0)	I have a 2006 bmw 325xi with 88k miles that makes the same sound you are describing...from what I've heard it's normal, especially for older shocks.
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07-20-2014, 12:16 PM	#4
ashmostro Brigadier General 1254 Rep 4,088 Posts Drives: 2020 M4cs \| 2022 M550i Join Date: Jan 2013 Location: Falls Church, VA iTrader: (27)	if it's a larger bump, that's the blowoff valving in the shock doing its job. If it's making that sound over even the slightest imperfection, you may have blown shocks. Unlikely at lower mileage though - what is yours?
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07-20-2014, 02:29 PM	#5
andrey_gta Brigadier General 298 Rep 4,040 Posts Drives: 130i coupé ;) Join Date: Nov 2011 Location: Bimmerpost iTrader: (1) Garage List 2008 BMW 128i [10.00]	It means your shock is healthy My blown one didnt do that anymore lol __________________ 128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff "The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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07-20-2014, 05:32 PM	#6
NickBlaine First Lieutenant 63 Rep 298 Posts Drives: '10 335XI Join Date: Dec 2013 Location: Indiana iTrader: (0)	I am at 55k miles right now. None of my previous 7 cars have done this, so I found it a bit odd/annoying.
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