Suspension assistance needed

Chronumn · 06-04-2013, 11:06 AM

I recently bought a used 335i from 2007 with 55k miles. I have a concern about the suspension though, the car seems to be very low without any aftermarket suspension work. Also when I hit bumps in the road the car feels very stiff and I hear some nasty noises coming from the rear. Finally when I am going about 70+mph the back of the car feels as if it is on ice and it's just floating around. I need help figuring out what could be causing this problem. Thank you

cvc 22349a · 06-04-2013, 11:55 AM

Inspect/torque control arm and shock bolts. Rear subframe bushings and/or rear shock mounts may be worn

pocoyo_3 · 06-04-2013, 01:01 PM

At minimum your shocks need replacing. I'd do the mounts too.

Can you send pics of the car?

Chronumn · 06-15-2013, 06:14 PM

Quote:

Originally Posted by my325i

At minimum your shocks need replacing. I'd do the mounts too.

Can you send pics of the car?

I noticed the other day that I am on H&R lowering springs and this is most likely the cause of the bad ride, I assume the struts are blown too because of this lol

CJ421 · 06-15-2013, 06:36 PM

I'm sorry to see you're yet another victim of the "lower it on springs and everything will be fine" idiocy.

The dampers are in all likelihood worn out - no longer effective. To fix, you'll be at the very least looking to replace the dampers. Koni Yellows are supposed to pair with the H&R Sport's. For a full kit (new dampers +springs), you'd be looking at KW V1. You could then sell your H&R springs to mitigate the price difference.

06-15-2013, 06:43 PM

Quote:

Originally Posted by Chronumn

the car seems to be very low without any aftermarket suspension work.

lol craigslist be like "stock as a box of rocks."

Chronumn · 06-15-2013, 09:38 PM

Quote:

Originally Posted by CJ421

I'm sorry to see you're yet another victim of the "lower it on springs and everything will be fine" idiocy.

The dampers are in all likelihood worn out - no longer effective. To fix, you'll be at the very least looking to replace the dampers. Koni Yellows are supposed to pair with the H&R Sport's. For a full kit (new dampers +springs), you'd be looking at KW V1. You could then sell your H&R springs to mitigate the price difference.

I always planned on getting coils, this just gives me a reason to get them quicker I guess lol. Springs suck I would never buy them

CALWATERBOY · 06-15-2013, 11:51 PM

Quote:

Originally Posted by Chronumn

I recently bought a used 335i from 2007 with 55k miles. I have a concern about the suspension though, the car seems to be very low without any aftermarket suspension work. Also when I hit bumps in the road the car feels very stiff and I hear some nasty noises coming from the rear. Finally when I am going about 70+mph the back of the car feels as if it is on ice and it's just floating around. I need help figuring out what could be causing this problem. Thank you

Pothole explosions? Google can help you there.

But even better is a set o'Koni FSD's. Designed for stock springs, they'll solve many problems.

Disconnected back end is a product of BMW's miserable e-diff and subframe bushings. Sub Wavetrac LSD & M bushings. May as well add M sways front & rear.

For that finishing touch, add M arms front & rear - they have Delrin, not rubber!

06-04-2013, 11:06 AM	#1
Chronumn BMW Client Advisor 99 Rep 242 Posts Drives: Z4M Coupe Join Date: Oct 2012 Location: Portland, ME iTrader: (2) Garage List 2020 M2 Competition [0.00]	Suspension assistance needed I recently bought a used 335i from 2007 with 55k miles. I have a concern about the suspension though, the car seems to be very low without any aftermarket suspension work. Also when I hit bumps in the road the car feels very stiff and I hear some nasty noises coming from the rear. Finally when I am going about 70+mph the back of the car feels as if it is on ice and it's just floating around. I need help figuring out what could be causing this problem. Thank you
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06-04-2013, 11:55 AM	#2
cvc 22349a Colonel 164 Rep 2,556 Posts Drives: 335i Join Date: Sep 2007 Location: SF Bay iTrader: (11)	Inspect/torque control arm and shock bolts. Rear subframe bushings and/or rear shock mounts may be worn __________________ 2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS
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06-04-2013, 01:01 PM	#3
pocoyo_3 First Lieutenant 50 Rep 352 Posts Drives: 2006 330i / 6MT Join Date: Apr 2010 Location: San Diego iTrader: (0)	At minimum your shocks need replacing. I'd do the mounts too. Can you send pics of the car? __________________ 1999 E46 323i / Jet Black / Black Leather / 6MT / Sports Package / Heated Seats 2006 E90 325i / Jet Black / Black Leatherette / 6MT / Sports Package / Cold Weather 2011 E90 335i / Slate Grey / Black Leatherette / 6MT / M-Sport Package / Heated Seats 2014 F30 328i / Alpine White / Black Sensatec / 8AT (2TB) / ZMM / 494 / 609 / ZDA / ZLP 2015 F22 M235i / Alpine White / 6MT / ZTP / ZPP / ZDA / 494 / ZDM
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06-15-2013, 06:36 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]	I'm sorry to see you're yet another victim of the "lower it on springs and everything will be fine" idiocy. The dampers are in all likelihood worn out - no longer effective. To fix, you'll be at the very least looking to replace the dampers. Koni Yellows are supposed to pair with the H&R Sport's. For a full kit (new dampers +springs), you'd be looking at KW V1. You could then sell your H&R springs to mitigate the price difference. __________________ 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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