Rattle On Lift Off?

DaveyB · 05-26-2014, 07:06 AM

Sun made an appearance today and on a tip run with the windows down, I noticed a rattle on lift off. Went away when I put my foot down. Any ideas before I take it into the dealers? Seemed to be coming from the rear of the car, possibly the l/h side so thinking an exhaust heat sheild or something if it has such a thing???

Cheers
Dave

SDemetris · 05-26-2014, 07:22 AM

For me, it was the one exhaust hanger near the secondary cats. It has two vertical bolts that are 15mm i think and a horizontal piece that supports the exhaust tubes

DaveyB · 05-26-2014, 09:42 AM

Cheers - nothing too expensive then. Don't have my ramps anymore and it needs a service so I'll get it booked it!

Ta
Dave

PTA85 · 05-29-2014, 07:53 PM

I had a rattle when I would lift and then when I would step on the throttle. It only happened when I was driving around 10-25 mph. It was the flap in the exhaust not closing all the way and was rattling against the exhaust. I took the vacuum line off of it and it fixed the problem. Golf tee mod.

Tim603 · 06-02-2014, 10:43 AM

For my e92 I believe it's my secondary cats, still original with 140k and I have catless headers. Yeah I'm pretty sure they are beyond toast and need to be replaced with some high flows since I'm pretty sure the cat cells are breaking apart and rattling

05-26-2014, 07:06 AM	#1
DaveyB Enlisted Member 0 Rep 48 Posts Drives: BMW E91 330I M-Sport Join Date: Mar 2014 Location: UK iTrader: (0)	Rattle On Lift Off? Sun made an appearance today and on a tip run with the windows down, I noticed a rattle on lift off. Went away when I put my foot down. Any ideas before I take it into the dealers? Seemed to be coming from the rear of the car, possibly the l/h side so thinking an exhaust heat sheild or something if it has such a thing??? Cheers Dave
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05-26-2014, 07:22 AM	#2
SDemetris FSAE Dude 59 Rep 759 Posts Drives: E90 328xi Join Date: Jul 2012 Location: Pittsburgh, PA iTrader: (0)	For me, it was the one exhaust hanger near the secondary cats. It has two vertical bolts that are 15mm i think and a horizontal piece that supports the exhaust tubes __________________ 2007 TiAg 328xi: AA Tune, AFE intake, Full exhaust, 335xi Brakes, H&R RSB, UUC FSB, H&R Sports, Billy Sports...BBS SR 17x8 1985 Gazelle Beige 325e: Poly everything, e24 3.25 LSD, 225 lb weight reduction, Corbeau FX1, Shifter machined by me, roll bar, harness, all the other goodies. My "Racecar"...15x7 BBS RA
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05-26-2014, 09:42 AM	#3
DaveyB Enlisted Member 0 Rep 48 Posts Drives: BMW E91 330I M-Sport Join Date: Mar 2014 Location: UK iTrader: (0)	Cheers - nothing too expensive then. Don't have my ramps anymore and it needs a service so I'll get it booked it! Ta Dave
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05-29-2014, 07:53 PM	#4
PTA85 Second Lieutenant 17 Rep 257 Posts Drives: 06' 330i Join Date: Apr 2010 Location: VA iTrader: (0) Garage List 2006 330i [0.00]	I had a rattle when I would lift and then when I would step on the throttle. It only happened when I was driving around 10-25 mph. It was the flap in the exhaust not closing all the way and was rattling against the exhaust. I took the vacuum line off of it and it fixed the problem. Golf tee mod.
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06-02-2014, 10:43 AM	#5
Tim603 Colonel 487 Rep 2,283 Posts Drives: 2007 335i E90 Join Date: Feb 2012 Location: North Canton, OH iTrader: (8) Garage List 2007 335i [0.00]	For my e92 I believe it's my secondary cats, still original with 140k and I have catless headers. Yeah I'm pretty sure they are beyond toast and need to be replaced with some high flows since I'm pretty sure the cat cells are breaking apart and rattling __________________ Build Thread
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