Knocking noise from front suspension

ZElephant · 07-20-2007, 09:25 AM

Hey guys,

Anyone expierenced any knocking noises coming from suspension? the noise seems to come and go inconsistantly i could go over the same bump twice at same speed and only hear it once

im gunna book it in after the weekend but this is just gunna bug me over the weekend >.<

ive had problems with a previous m3 and that was shocks and on another occasion ball joints and wish bone which i know is a common thing to go wrong on e46... does the Z4 coupes suffer from anything prematurely suspension or otherwise?

thanks in advance guys

Cris

EDIT: cars only done 9k btw

Caddyshk · 07-20-2007, 10:05 AM

Only the well commented on popping from the rear towers when turning slowly over bumps on inclines. Nothing from the front end.

deviated · 07-20-2007, 01:07 PM

I just brought my car in 2 days ago for the same problem. It sounds like a single pop noise when I go over a small ditch or bump. The dealer just fixed it and told me it is a defective shock mount, which was changed. So, definately bring it in and have them change it for you.

ZElephant · 07-20-2007, 01:18 PM

Quote:

Originally Posted by deviated

I just brought my car in 2 days ago for the same problem. It sounds like a single pop noise when I go over a small ditch or bump. The dealer just fixed it and told me it is a defective shock mount, which was changed. So, definately bring it in and have them change it for you.

yup thats it, a pop sound thank you. i knew it sounded like a familar >.< will get it booked it first thing in the morning.

anyone kno of any other defects the Z suffers from?

karmasabish · 07-20-2007, 03:20 PM

I have this same problem in my roadster. Kid69, will you let me know if that is your resolution as well? Pop!

ZElephant · 07-20-2007, 04:43 PM

Quote:

Originally Posted by karmasabish

I have this same problem in my roadster. Kid69, will you let me know if that is your resolution as well? Pop!

lol will do

Dammmittt · 07-20-2007, 08:30 PM

I've been hitting alot of friggin pot holes and drains and other friggin obstructions since getting back up NE. And I thought the roads in SC were bad...

I guess I'll have to start listening for unusual noises...but the thought of it is kinda scary...I still haven't found a new dealership...

SapphireBlackG01 · 07-20-2007, 09:40 PM

Oh, hey, so you guys know...

I was hearing a clunking/popping noise coming from my front suspension when I would go over small bumps and ridges at low speeds and with the wheel turned...

Took it to the dealer, and they fixed her up by re-torquing some of the bolts on the engine mount braces - or so they told me.

I had read about alot of people hearing this same, or a similar, noise from the front or rear suspensions, and many people have posted that the re-torquing of some bolts usually fixes the problem.

So if you're experiencing the noise, I think your best bet would be to go to the dealer, tell them about it, and ask them to double check the bolts either in the front or the rear (could be the engine mounts, strut towers, suspension mounts, etc) and have them re-torqued if necessary.

Hope that helps anyone who has the problem. I know information regarding the issue is ALOT scarcer than it should be, considering how widespread it is. Everything from 3er to Z4s to X5s have reported it!

tofu4 · 10-01-2007, 05:37 PM

Yeah I have this too. A few days ago it got worse. Its random and annoying. Sometimes it happens constantly for a min. And sometimes it never happens at all. I just ran outta warranty on mines so I gotta figure this out and replace what ever is busted or worn out. Anyone else have any suggestions?

Silververtu · 10-01-2007, 11:36 PM

It happened to me when my car had about 3100miles on. At first it wasn't consistant, could only hear it in big bumps. But 2 weeks later, it got worse, it happened even when i shift. I brought it to dealer and they said it's just a loosen screw between the engine compartment and dashboard.

LAbull · 10-02-2007, 12:08 AM

wow...wish i saw this thread earlier. I was sure it was something behind the odometer.

karmasabish · 10-02-2007, 05:27 PM

i've gotten used to mine

Dammmittt · 10-02-2007, 07:48 PM

Artz 330 · 10-02-2007, 09:03 PM

i have it too. My dealer told me its my h&r springs. BS ill have to re check bolts my self.

Rey · 10-04-2007, 09:53 AM

When gas presurized shocks begin to fail they sometimes (maybe always) make noises over small short-interval bumps. It is often heard at low speeds. The noises are not a rattle (multiple sounds). A sure sign of gas shock failure is oil seepage. This leakage is not likely to be seen on your garage floor as it is usually absorbled by road dirt. Your shock will appear to have an oily grime.

561design · 10-04-2007, 10:10 AM

I just got mine fixed when I went in for service. It's just some loose bolts.

inTgr8r · 10-04-2007, 11:55 AM

IIRC there is a TSB on this with revised mounting hardware

tofu4 · 10-04-2007, 05:53 PM

Do you have any of the recall info?

Veruca · 10-04-2007, 08:58 PM

It is the bolts on the strut braces. They come loose and when the body flexes they make a popping sound. Take it in to service, tell them they have a service bulletin on it and they will fix it. Only takes a minute.

killjohnnyforan · 10-04-2007, 09:01 PM

Quote:

Originally Posted by Rey

When gas presurized shocks begin to fail they sometimes (maybe always) make noises over small short-interval bumps. It is often heard at low speeds. The noises are not a rattle (multiple sounds). A sure sign of gas shock failure is oil seepage. This leakage is not likely to be seen on your garage floor as it is usually absorbled by road dirt. Your shock will appear to have an oily grime.

how about an orange ish material on the rim?

EFXAD · 10-07-2007, 01:39 PM

Wow, I've been hearing that for awhile. In my case I took it to 2 different dealers who told me they could find nothing wrong. A service manager even went for a ride with me to hear the noise, of course I couldn't get the noise to happen. One mystery solved, thanks!!

Now if I could figure out the random DSC engagement problem. Oh, and the air bag "off" problem and then the air bag warning light problem. All random and intermittent yet not a problem according to the dealer.

tofu4 · 10-25-2007, 04:53 PM

My problem is a shocks. After i took the springs off. I found that the shocks compress really easily. No oily film but I can hear a swishing sound as i manually compress the shock. I shoulda taken it to the dealer while under warranty. Oh well.

07-20-2007, 09:25 AM	#1
ZElephant Private First Class 10 Rep 199 Posts Drives: ///M Join Date: May 2007 Location: South Africa iTrader: (0)	Knocking noise from front suspension Hey guys, Anyone expierenced any knocking noises coming from suspension? the noise seems to come and go inconsistantly i could go over the same bump twice at same speed and only hear it once im gunna book it in after the weekend but this is just gunna bug me over the weekend >.< ive had problems with a previous m3 and that was shocks and on another occasion ball joints and wish bone which i know is a common thing to go wrong on e46... does the Z4 coupes suffer from anything prematurely suspension or otherwise? thanks in advance guys Cris EDIT: cars only done 9k btw
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07-20-2007, 10:05 AM	#2
Caddyshk M = Midlife Crisis 65 Rep 2,006 Posts Drives: 2006 Z4MC Interlagos Join Date: May 2007 Location: Fort Erie, Ontario, Canada iTrader: (0)	Only the well commented on popping from the rear towers when turning slowly over bumps on inclines. Nothing from the front end. __________________ 2006 Z4MC - #LL93158 SS Race Cans, RE X Pipe, DKF Sec 1, Fabspeed Headers, OE STB, AS Shifter, Dave Z CDV, GC Coil Overs, Stoptech lines, Hawk DTC Pads, RE Clutch Stop, RE Transmission Mounts, Vibra-Technics Engine Mounts, Poly FCAB & RTAB, LeatherZ M Shift Boot, Tekarbon Rear Spoiler, CF Grills, Advan RS DGM
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07-20-2007, 01:07 PM	#3
deviated New Member 6 Rep 14 Posts Drives: 2006 Z4 3.0 Si Join Date: Jun 2007 Location: California iTrader: (0)	I just brought my car in 2 days ago for the same problem. It sounds like a single pop noise when I go over a small ditch or bump. The dealer just fixed it and told me it is a defective shock mount, which was changed. So, definately bring it in and have them change it for you.
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07-20-2007, 03:20 PM	#5
karmasabish Lieutenant 37 Rep 420 Posts Drives: 06 M Roadster Join Date: Jun 2007 Location: Los Angeles iTrader: (0)	I have this same problem in my roadster. Kid69, will you let me know if that is your resolution as well? Pop!
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07-20-2007, 08:30 PM	#7
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	I've been hitting alot of friggin pot holes and drains and other friggin obstructions since getting back up NE. And I thought the roads in SC were bad... I guess I'll have to start listening for unusual noises...but the thought of it is kinda scary...I still haven't found a new dealership... __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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07-20-2007, 09:40 PM	#8
SapphireBlackG01 Captain 17 Rep 821 Posts Drives: ‘18 X3, Formerly ‘06 Z4 Join Date: Feb 2006 Location: Here iTrader: (0)	Oh, hey, so you guys know... I was hearing a clunking/popping noise coming from my front suspension when I would go over small bumps and ridges at low speeds and with the wheel turned... Took it to the dealer, and they fixed her up by re-torquing some of the bolts on the engine mount braces - or so they told me. I had read about alot of people hearing this same, or a similar, noise from the front or rear suspensions, and many people have posted that the re-torquing of some bolts usually fixes the problem. So if you're experiencing the noise, I think your best bet would be to go to the dealer, tell them about it, and ask them to double check the bolts either in the front or the rear (could be the engine mounts, strut towers, suspension mounts, etc) and have them re-torqued if necessary. Hope that helps anyone who has the problem. I know information regarding the issue is ALOT scarcer than it should be, considering how widespread it is. Everything from 3er to Z4s to X5s have reported it! __________________ Guy #1: "Hanz, I know zee window switches have always been next to zee shifter in zee 3er cars, but I think ve should move them to zee door!" Guy #2: "But zee doors are already designed and ve do not have time to re-design them!" Guy #1: "Just make it verk or you vill be verking over at VW!"
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10-01-2007, 05:37 PM	#9
tofu4 Private 4 Rep 80 Posts Drives: Z4 3.0 Join Date: Sep 2007 Location: Cali iTrader: (0)	Yeah I have this too. A few days ago it got worse. Its random and annoying. Sometimes it happens constantly for a min. And sometimes it never happens at all. I just ran outta warranty on mines so I gotta figure this out and replace what ever is busted or worn out. Anyone else have any suggestions?
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10-01-2007, 11:36 PM	#10
Silververtu Major 231 Rep 1,066 Posts Drives: 2015 X5 50i M Sport Join Date: Aug 2007 Location: US of A iTrader: (5) Garage List 2019 Porsche Cayenn ... [10.00]	It happened to me when my car had about 3100miles on. At first it wasn't consistant, could only hear it in big bumps. But 2 weeks later, it got worse, it happened even when i shift. I brought it to dealer and they said it's just a loosen screw between the engine compartment and dashboard. __________________ 2019 Cayenne Turbo Gone but not forgotten: 2006 2.0T A4 Avant, 2007 Z4 Roadster 3.0si, 2006 M Roadster, 2013 550i M Sport, 2015 Cayman S, 2015 X5 50i M Sport
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10-02-2007, 12:08 AM	#11
LAbull Private First Class 5 Rep 133 Posts Drives: M Roadster Join Date: Aug 2007 Location: Studio City, CA iTrader: (0)	wow...wish i saw this thread earlier. I was sure it was something behind the odometer. __________________ 2009 Cayenne GTS on it's way.....
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10-02-2007, 05:27 PM	#12
karmasabish Lieutenant 37 Rep 420 Posts Drives: 06 M Roadster Join Date: Jun 2007 Location: Los Angeles iTrader: (0)	i've gotten used to mine
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10-02-2007, 07:48 PM	#13
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	__________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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10-02-2007, 09:03 PM	#14
Artz 330 Colonel 196 Rep 2,486 Posts Drives: Z4M, 335i, 135i Join Date: Dec 2005 Location: Lawrenceville, NJ iTrader: (4) Garage List 2006 330i [0.00]	i have it too. My dealer told me its my h&r springs. BS ill have to re check bolts my self. __________________
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10-04-2007, 09:53 AM	#15
Rey New Member 2 Rep 19 Posts Drives: Z4 Coupe Join Date: May 2007 Location: Salem, OR iTrader: (0)	When gas presurized shocks begin to fail they sometimes (maybe always) make noises over small short-interval bumps. It is often heard at low speeds. The noises are not a rattle (multiple sounds). A sure sign of gas shock failure is oil seepage. This leakage is not likely to be seen on your garage floor as it is usually absorbled by road dirt. Your shock will appear to have an oily grime.
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10-04-2007, 10:10 AM	#16
561design z4um Hooligan 140 Rep 586 Posts Drives: 3.0Si Join Date: Apr 2007 Location: Woodstock,Ga iTrader: (1)	I just got mine fixed when I went in for service. It's just some loose bolts. __________________ Charles flickr
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10-04-2007, 11:55 AM	#17
inTgr8r Lieutenant General 2432 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	IIRC there is a TSB on this with revised mounting hardware __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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10-04-2007, 05:53 PM	#18
tofu4 Private 4 Rep 80 Posts Drives: Z4 3.0 Join Date: Sep 2007 Location: Cali iTrader: (0)	Do you have any of the recall info?
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10-04-2007, 08:58 PM	#19
Veruca Private 6 Rep 88 Posts Drives: 06 M Roadster Join Date: Aug 2007 Location: Atlanta, GA iTrader: (0) Garage List 2006 M Roadster [10.00]	It is the bolts on the strut braces. They come loose and when the body flexes they make a popping sound. Take it in to service, tell them they have a service bulletin on it and they will fix it. Only takes a minute. __________________
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10-07-2007, 01:39 PM	#21
EFXAD New Member 1 Rep 10 Posts Drives: 04 Z4 3.0 Join Date: Jun 2007 Location: In front... mostly iTrader: (0)	Wow, I've been hearing that for awhile. In my case I took it to 2 different dealers who told me they could find nothing wrong. A service manager even went for a ride with me to hear the noise, of course I couldn't get the noise to happen. One mystery solved, thanks!! Now if I could figure out the random DSC engagement problem. Oh, and the air bag "off" problem and then the air bag warning light problem. All random and intermittent yet not a problem according to the dealer.
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10-25-2007, 04:53 PM	#22
tofu4 Private 4 Rep 80 Posts Drives: Z4 3.0 Join Date: Sep 2007 Location: Cali iTrader: (0)	My problem is a shocks. After i took the springs off. I found that the shocks compress really easily. No oily film but I can hear a swishing sound as i manually compress the shock. I shoulda taken it to the dealer while under warranty. Oh well.
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