suspension issues

Stucks · 08-09-2012, 10:06 AM

I bought my car with 30k miles and 2 front blown struts (I later found this out). I then figured, instead of replacing, why not upgrade. I got kw v1 coilovers installed and everything was fine until about 4-5 months later. Started hearing random noises, clunking, ect. Took it back and they said I had leaking/blown front struts. Sent them back to kw where they were replaced, bought the eibach pro system(eibach pro kit springs and struts), and had that installed along with new upgraded control arms, h&r front sway bar, new endlinks, and strut mounts. Everything has been fine until about 4-5 months after the install. I hear hissing over larger bumps, which leads me to think the front struts are blown again.

I hear a metallic click when going slightly downhill, at lower speeds, and slowing down (causing the suspension to adjust). It only happens in certain places, sometimes when braking/sometimes when not braking, and not all the time. What else could be causing these issues? I've dumped so much money into this thing, I am pulling my hair out with this lol don't want to get rid of the car, but if I can't find out what's up with it, I may not have to think about that decision for long lol. The car has 68k miles.

cstmx_ryder · 08-09-2012, 10:26 AM

Quote:

Originally Posted by Stucks

I bought my car with 30k miles and 2 front blown struts (I later found this out). I then figured, instead of replacing, why not upgrade. I got kw v1 coilovers installed and everything was fine until about 4-5 months later. Started hearing random noises, clunking, ect. Took it back and they said I had leaking/blown front struts. Sent them back to kw where they were replaced, bought the eibach pro system(eibach pro kit springs and struts), and had that installed along with new upgraded control arms, h&r front sway bar, new endlinks, and strut mounts. Everything has been fine until about 4-5 months after the install. I hear hissing over larger bumps, which leads me to think the front struts are blown again.

I hear a metallic click when going slightly downhill, at lower speeds, and slowing down (causing the suspension to adjust). It only happens in certain places, sometimes when braking/sometimes when not braking, and not all the time. What else could be causing these issues? I've dumped so much money into this thing, I am pulling my hair out with this lol don't want to get rid of the car, but if I can't find out what's up with it, I may not have to think about that decision for long lol. The car has 68k miles.

ummm.....welcome to the club? sorry, don't mean to be a dick, it's just that I've been having the same issues since the DAY my PSS10s were installed. I even had the mechanic who installed it check all the bolts and make sure they're torqued. Still no luck......

Definitely let us know what you find out though!

Stucks · 08-12-2012, 02:35 PM

Bump, anyone else got any ideas?

Murf · 08-12-2012, 04:14 PM

Just curious, how did you know you had 2 blown struts?

CJ421 · 08-12-2012, 05:15 PM

Blown dampers ... if that were the case, the car would oscillate more than once over bumps. It'd be wobbly/squishy feeling. Is that the case? They might also produce clunking noises.
Hearing a "pssht" over bumps is normal. That is the sound of the damper at work.

Other sources of clunking; check the sway bar end-links for looseness/excess wear and the damper top-mount bolts (three on each side).

Stucks · 08-12-2012, 05:54 PM

Quote:

Originally Posted by Murf

Just curious, how did you know you had 2 blown struts?

When i bought the car, i went to a meet and the front of my car was lower than all the other stock sport suspension 335i's there. Got it checked out cause i was also hearing "pshhh" sounds over bumps. both were blown.

With the coilovers, i started hearing a clunking sound when first driving my car off from a dead stop after starting it up. they werent completely blown, but the valving was very weak (half way blown?). sent em back to the company and they were replaced under warranty.

my eibachs struts now hiss/pishhhh going over bumps and hitting bumps in the road, but there isnt any clunking noises. just that random metallic click. I'll check the endlinks, damper top mount bolts, and tie rods (just while im under there). thanks!

HP Autosport · 08-14-2012, 12:32 AM

Inspect your front upper strut mounts. We have seen them go at 25K miles and customer reporting of noise at as little ast 10K miles.

Murf · 08-19-2012, 04:37 PM

Quote:

Originally Posted by HP Autowerks

Inspect your front upper strut mounts. We have seen them go at 25K miles and customer reporting of noise at as little ast 10K miles.

Do you have to disassemble to inspect these?

HP Autosport · 08-20-2012, 06:05 PM

Quote:

Originally Posted by Murf

Do you have to disassemble to inspect these?

Yes, you do. The mounts may look perfectly fine, but may have wear and tear only disassembly will reveal.

08-09-2012, 10:06 AM	#1
Stucks Lieutenant Colonel 172 Rep 1,909 Posts Drives: 2017 F30 340i Xdrive Join Date: Oct 2010 Location: Montgomery County, MD iTrader: (12)	suspension issues I bought my car with 30k miles and 2 front blown struts (I later found this out). I then figured, instead of replacing, why not upgrade. I got kw v1 coilovers installed and everything was fine until about 4-5 months later. Started hearing random noises, clunking, ect. Took it back and they said I had leaking/blown front struts. Sent them back to kw where they were replaced, bought the eibach pro system(eibach pro kit springs and struts), and had that installed along with new upgraded control arms, h&r front sway bar, new endlinks, and strut mounts. Everything has been fine until about 4-5 months after the install. I hear hissing over larger bumps, which leads me to think the front struts are blown again. I hear a metallic click when going slightly downhill, at lower speeds, and slowing down (causing the suspension to adjust). It only happens in certain places, sometimes when braking/sometimes when not braking, and not all the time. What else could be causing these issues? I've dumped so much money into this thing, I am pulling my hair out with this lol don't want to get rid of the car, but if I can't find out what's up with it, I may not have to think about that decision for long lol. The car has 68k miles. __________________ Current: 2017 F30 340i xdrive Previous: 2008 e92 335i coupe: RB turbos, mach 116 race fuel, methanol, alot of boost. Previous: 2003 Honda Accord V6 coupe: AEM V2, zex 75 wet shot (sold)
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08-12-2012, 02:35 PM	#3
Stucks Lieutenant Colonel 172 Rep 1,909 Posts Drives: 2017 F30 340i Xdrive Join Date: Oct 2010 Location: Montgomery County, MD iTrader: (12)	Bump, anyone else got any ideas? __________________ Current: 2017 F30 340i xdrive Previous: 2008 e92 335i coupe: RB turbos, mach 116 race fuel, methanol, alot of boost. Previous: 2003 Honda Accord V6 coupe: AEM V2, zex 75 wet shot (sold)
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08-12-2012, 04:14 PM	#4
Murf Captain 885 Rep 897 Posts Drives: 2021 G80 M3C - Dravit Grey Join Date: Apr 2011 Location: Florida iTrader: (2)	Just curious, how did you know you had 2 blown struts?
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08-12-2012, 05:15 PM	#5
CJ421 Brigadier General 1559 Rep 4,109 Posts Drives: BMW M3 Join Date: Feb 2011 Location: Blue Bell, PA iTrader: (1) Garage List 2024 BMW M3 Sedan [9.50]	Blown dampers ... if that were the case, the car would oscillate more than once over bumps. It'd be wobbly/squishy feeling. Is that the case? They might also produce clunking noises. Hearing a "pssht" over bumps is normal. That is the sound of the damper at work. Other sources of clunking; check the sway bar end-links for looseness/excess wear and the damper top-mount bolts (three on each side). __________________ 2024 BMW M3 Sedan Frozen Pure Grey II/Fjord Blue, 6MT Past: 2021 Z4 M40i Frozen Grey II/Black Alcantara \| 2017 F30 340i Mineral Gray/Coral Red, 6MT \| 2011 E92 335i Le Mans Blue/Black, 6MT
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08-14-2012, 12:32 AM	#7
HP Autosport Supreme Allied Commander 3847 Rep 54,378 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	Inspect your front upper strut mounts. We have seen them go at 25K miles and customer reporting of noise at as little ast 10K miles.
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