Way too much bounce and wobble at 65-90mph

AHB900 · 12-10-2013, 02:33 AM

Hey guys, I got a 335i msport with 19 inch wheels with the stock run flat potenzas. Currently have 520 miles on the car, and this thing bounces and wobbles all over the freeway. How is this suppose to be safe? I used to own a VW r32 and that thing was planted to the floor at any speed. Everytime I hit a bump in the f30 i feel like im going to crash. Is it just the way the car is or is it the run flats and stock suspension?

Also, i do not have DHP

Thank you

RollingLower42 · 12-10-2013, 02:49 AM

It's the run flats. I had 18" in run flats and when I went to a aftermarket 19" rim and Hankook tires, I noticed a crazy difference, has been running much smoother since I took the run flats off.

momo3605 · 12-10-2013, 03:18 AM

I don't have run flats anymore, and I still have the wobble and bounciness. I have DHP by the way. I honestly don't know what's the problem with the suspension. Sounds like it has to be the springs since both our cars have different dampers and that doesn't seem to be make a difference

AHB900 · 12-10-2013, 04:49 AM

Its honestly really bad, I dont understand how BMW can release a car that is so unstable at those highway speeds when these cars can possibly be put on the german autobahn at even higher speeds. I think the only fix is to lower the car.

Mak135i · 12-10-2013, 07:02 AM

I have the non run flat Hankook tires (245 up front) and H&R sport springs which all made the car more stable, BUT, it does still feel a little bouncy on bumps. However, it does not wobble...even at high speed on a track (smooth road). I think the only way to completely eliminate the bounce would be to change the dampers, which I would have done if I planned on keeping the car (It's a lease)

Vitoco · 12-10-2013, 07:05 AM

Not even on my current 18" nordic studded winter tires is it nor bouncy or wobbly. Much more solid and stable than my old E90 Msport on 19". Talk to your dealer guys

momo3605 · 12-10-2013, 01:02 PM

Interesting, I wonder if there was like a bad batch of cars made. Has anyone tried taking their car to the dealers to see if something is fishy with the factory suspension install?

Sedan_Clan · 12-10-2013, 01:33 PM

Quote:

Originally Posted by momo3605

Interesting, [b]I wonder if there was like a bad batch of cars made[/]. Has anyone tried taking their car to the dealers to see if something is fishy with the factory suspension install?

That's what I think. It's a bad batch.

Thackers · 12-10-2013, 01:54 PM

Pretty sure nothing to do with Runflats!

Pirelli cinturatos RFT 18s fitted and no issues with what your talking about.
-
Also recently fitted Dunlp winter sport 4Ds RFT and again no problems.

OC40 · 12-10-2013, 02:52 PM

That's why I added the MPS. No wobbly wobbly now.

AHB900 · 12-10-2013, 07:44 PM

Damn maybe I should go talk to the dealer then. :-\

infinitigor · 12-17-2013, 08:21 PM

yea... stock suspension is quite soft somewhat bouncy

coilovers or MPS will cure this. don't cheap out with just springs, the bounciness might be even worse at high speeds

momo3605 · 12-17-2013, 10:50 PM

AHB, did you try talking to a dealer?

Also I have DHP so MPS isn't compatible with my car

showdown · 12-18-2013, 01:09 AM

Apparently, the standard coilovers are too soft for higher speed, in particular on the Autobahn. This weekend I was trying to reach the limiter (i.e., tried to hit 250 km/h) but I felt really incomfortable doing so as the whole car rolled around like a drunk sailor.

Unfortunately, there is no way to change this behaviour, expect for changing coilovers. Adaptive suspension is NO remedy. Maybe it works under other conditions, but it is still way to soft for driving on the Autobahn. Therefore, I will bite the bullet and invest in a "KW Variante 3" which will be set up by Wolfgang Weber, a well known coilover/suspension specialist (and former Rallye European champion) here in Germany.

infinitigor · 12-20-2013, 01:28 PM

Quote:

Originally Posted by momo3605

AHB, did you try talking to a dealer?

Also I have DHP so MPS isn't compatible with my car

it's compatibile, you would just lose your damper adjustability

AHB900 · 12-24-2013, 05:24 PM

Quote:

Originally Posted by momo3605

AHB, did you try talking to a dealer?

Also I have DHP so MPS isn't compatible with my car

No havent had a chance, but the car feels a little less bouncy now that I have around 1500 miles on the car, but still not perfect.

buckybadger · 06-03-2015, 03:53 PM

Does anyone still feel the F30 is bouncy? I have M Sport with 19' inch wheels and feels more wobbly/bouncy than before. Could it be suspension or run-flat? is there a fix or TSB for this? I'm curious if my suspension is busted.

Also feel the stock run-flats are terrible.

Avrosse · 10-04-2016, 10:13 AM

Quote:

Originally Posted by mintoo

Does anyone still feel the F30 is bouncy? I have M Sport with 19' inch wheels and feels more wobbly/bouncy than before. Could it be suspension or run-flat? is there a fix or TSB for this? I'm curious if my suspension is busted.

Also feel the stock run-flats are terrible.

I have a bouncy F30 unfortunately

Tinsta · 10-04-2016, 01:28 PM

Was this is in Comfort/Eco modes? I've noticed something similar, but putting the EDC in Sport mode, resolves all waveyness, just alot more planted at higher speeds.

RM7 · 10-05-2016, 12:38 AM

Quote:

Originally Posted by showdown

Apparently, the standard coilovers are too soft for higher speed, in particular on the Autobahn. This weekend I was trying to reach the limiter (i.e., tried to hit 250 km/h) but I felt really incomfortable doing so as the whole car rolled around like a drunk sailor.

Unfortunately, there is no way to change this behaviour, expect for changing coilovers. Adaptive suspension is NO remedy. Maybe it works under other conditions, but it is still way to soft for driving on the Autobahn. Therefore, I will bite the bullet and invest in a "KW Variante 3" which will be set up by Wolfgang Weber, a well known coilover/suspension specialist (and former Rallye European champion) here in Germany.

Swaybars for roll. Springs and dampers for dive and front-to-rear chassis stability.

Polo08816 · 10-05-2016, 06:27 AM

Quote:

Originally Posted by AHB900

Hey guys, I got a 335i msport with 19 inch wheels with the stock run flat potenzas. Currently have 520 miles on the car, and this thing bounces and wobbles all over the freeway. How is this suppose to be safe? I used to own a VW r32 and that thing was planted to the floor at any speed. Everytime I hit a bump in the f30 i feel like im going to crash. Is it just the way the car is or is it the run flats and stock suspension?

Also, i do not have DHP

Thank you

How do you only have 520 miles on your 2013 335i M Sport? When you say that did you buy it used? I'm wondering if your stock suspension is simply worn out.

Dmitry83 · 10-05-2016, 08:21 AM

Replacement runflats with regular tires (+E60 steel or more expensive F30 alloy spare wheel set in the trunk) and stock dampers with Koni Sport (if your car is non-xDrive)- this is the way to go to eliminate that jumps.

12-10-2013, 02:33 AM	#1
AHB900 Second Lieutenant 54 Rep 240 Posts Drives: 2013 BMW 335I M-Sport Join Date: Feb 2010 Location: Burbank CA iTrader: (0)	Way too much bounce and wobble at 65-90mph Hey guys, I got a 335i msport with 19 inch wheels with the stock run flat potenzas. Currently have 520 miles on the car, and this thing bounces and wobbles all over the freeway. How is this suppose to be safe? I used to own a VW r32 and that thing was planted to the floor at any speed. Everytime I hit a bump in the f30 i feel like im going to crash. Is it just the way the car is or is it the run flats and stock suspension? Also, i do not have DHP Thank you __________________ 2013 BMW 335I M-Sport: Premium, Cold Weather, Drivers Assist, Tech, HK, Sports Auto
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12-10-2013, 02:49 AM	#2
RollingLower42 Lieutenant 71 Rep 556 Posts Drives: 2012 BMW 335I Join Date: May 2012 Location: Los Angeles iTrader: (0) Garage List 2012 BMW 335I F30 [0.00]	It's the run flats. I had 18" in run flats and when I went to a aftermarket 19" rim and Hankook tires, I noticed a crazy difference, has been running much smoother since I took the run flats off. __________________ 2012 BMW 335I F30-- KWV2, VOLK TTA-TE37, HANKOOK V12'S, MEISTERSCHAFT SUPER GT RACING EXHAUST, JB4 STAGE 2 MAP 2, CHALLENGE HFC DOWNPIPE, M-PERF SIDE SKIRTS, M-PERF REAR BUMPER, CUSTOM LTMW F30/F12 FRONT BUMPER (THANKS LONG!!), HID FOG LIGHTS, MATTE BLACK GRILLE, UNDERGROUND EURO WHITE SIDE BULBS, GLOSS VINYL ROOF WRAP AND WINDOW TRIM, CUSTOM STRUT BAR
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12-10-2013, 03:18 AM	#3
momo3605 Major 208 Rep 1,201 Posts Drives: M340i LCI, 718 GTS 4.0 Join Date: Aug 2012 Location: Norcal iTrader: (2)	I don't have run flats anymore, and I still have the wobble and bounciness. I have DHP by the way. I honestly don't know what's the problem with the suspension. Sounds like it has to be the springs since both our cars have different dampers and that doesn't seem to be make a difference
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12-10-2013, 04:49 AM	#4
AHB900 Second Lieutenant 54 Rep 240 Posts Drives: 2013 BMW 335I M-Sport Join Date: Feb 2010 Location: Burbank CA iTrader: (0)	Its honestly really bad, I dont understand how BMW can release a car that is so unstable at those highway speeds when these cars can possibly be put on the german autobahn at even higher speeds. I think the only fix is to lower the car. __________________ 2013 BMW 335I M-Sport: Premium, Cold Weather, Drivers Assist, Tech, HK, Sports Auto
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12-10-2013, 07:02 AM	#5
Mak135i First Lieutenant 6 Rep 340 Posts Drives: 911 GTS, X3M Join Date: Apr 2010 Location: Tampa, FL iTrader: (2)	I have the non run flat Hankook tires (245 up front) and H&R sport springs which all made the car more stable, BUT, it does still feel a little bouncy on bumps. However, it does not wobble...even at high speed on a track (smooth road). I think the only way to completely eliminate the bounce would be to change the dampers, which I would have done if I planned on keeping the car (It's a lease) __________________ 2019 911 GTS 2017 M4 CV 2017 Mini JCW
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12-10-2013, 07:05 AM	#6
Vitoco Infidel 122 Rep 1,102 Posts Drives: iX3 LCI M Pro Carbon B Join Date: Mar 2012 Location: Sweden iTrader: (0)	Not even on my current 18" nordic studded winter tires is it nor bouncy or wobbly. Much more solid and stable than my old E90 Msport on 19". Talk to your dealer guys __________________ Dec. 2022: Fully loaded Carbon Black G08 iX3 LCI M Sport Pro Former: Glacier Ag. F31 328iA RWD M Sport oct. 2012, sold July 2022 \| Sport Automatic \| Adap. M Susp. \| Pano. Moonroof \| 20" ATS Racelight Grey w. Michelin PSS\| M Sport brakes \| Harman Kardon \| Elec. Seats \| PDC F&R \| ACC Stop&Go \| 335i MPE \| Perf. Parts \|
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12-10-2013, 01:02 PM	#7
momo3605 Major 208 Rep 1,201 Posts Drives: M340i LCI, 718 GTS 4.0 Join Date: Aug 2012 Location: Norcal iTrader: (2)	Interesting, I wonder if there was like a bad batch of cars made. Has anyone tried taking their car to the dealers to see if something is fishy with the factory suspension install?
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12-10-2013, 01:54 PM	#9
Thackers Yorkshire Sniper 34 Rep 592 Posts Drives: F30 320d Sport Join Date: Oct 2013 Location: Leeds UK iTrader: (0)	Pretty sure nothing to do with Runflats! Pirelli cinturatos RFT 18s fitted and no issues with what your talking about. - Also recently fitted Dunlp winter sport 4Ds RFT and again no problems. __________________ Thanks in Advance......
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12-10-2013, 02:52 PM	#10
OC40 Lieutenant Colonel 51 Rep 1,831 Posts Drives: 335i MSport + MPS/MPPK Join Date: Jan 2013 Location: Irvine, CA iTrader: (0) Garage List 2013 MINI S [0.00] 2013 BMW 335i [0.00]	That's why I added the MPS. No wobbly wobbly now.
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12-10-2013, 07:44 PM	#11
AHB900 Second Lieutenant 54 Rep 240 Posts Drives: 2013 BMW 335I M-Sport Join Date: Feb 2010 Location: Burbank CA iTrader: (0)	Damn maybe I should go talk to the dealer then. :-\ __________________ 2013 BMW 335I M-Sport: Premium, Cold Weather, Drivers Assist, Tech, HK, Sports Auto
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12-17-2013, 08:21 PM	#12
infinitigor Major 117 Rep 1,027 Posts Drives: 2023 M3C, 2010 E350 Join Date: Mar 2010 Location: Houston / NYC iTrader: (8)	yea... stock suspension is quite soft somewhat bouncy coilovers or MPS will cure this. don't cheap out with just springs, the bounciness might be even worse at high speeds
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12-17-2013, 10:50 PM	#13
momo3605 Major 208 Rep 1,201 Posts Drives: M340i LCI, 718 GTS 4.0 Join Date: Aug 2012 Location: Norcal iTrader: (2)	AHB, did you try talking to a dealer? Also I have DHP so MPS isn't compatible with my car
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12-18-2013, 01:09 AM	#14
showdown New Member 0 Rep 14 Posts Drives: G31 540d xDrive Join Date: Aug 2013 Location: Frankfurt/Germany iTrader: (0)	Apparently, the standard coilovers are too soft for higher speed, in particular on the Autobahn. This weekend I was trying to reach the limiter (i.e., tried to hit 250 km/h) but I felt really incomfortable doing so as the whole car rolled around like a drunk sailor. Unfortunately, there is no way to change this behaviour, expect for changing coilovers. Adaptive suspension is NO remedy. Maybe it works under other conditions, but it is still way to soft for driving on the Autobahn. Therefore, I will bite the bullet and invest in a "KW Variante 3" which will be set up by Wolfgang Weber, a well known coilover/suspension specialist (and former Rallye European champion) here in Germany.
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06-03-2015, 03:53 PM	#17
buckybadger BMW forever! 1386 Rep 2,418 Posts Drives: BMW Join Date: Jan 2009 Location: San Diego, CA iTrader: (0)	Does anyone still feel the F30 is bouncy? I have M Sport with 19' inch wheels and feels more wobbly/bouncy than before. Could it be suspension or run-flat? is there a fix or TSB for this? I'm curious if my suspension is busted. Also feel the stock run-flats are terrible. __________________ 2020 BMW X5 2019 BMW M2C 2014 BMW 335i 2009 BMW 328i
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10-04-2016, 01:28 PM	#19
Tinsta Lieutenant 189 Rep 585 Posts Drives: 1CSL Join Date: Nov 2014 Location: UK iTrader: (2)	Was this is in Comfort/Eco modes? I've noticed something similar, but putting the EDC in Sport mode, resolves all waveyness, just alot more planted at higher speeds. __________________ If its broke.. Mod it! if not, mod it anyway!
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10-05-2016, 08:21 AM	#22
Dmitry83 Second Lieutenant 54 Rep 258 Posts Drives: F30 320i (328i ECU) M-Sport Join Date: May 2012 Location: Rostov-on-Don, Russia iTrader: (0)	Replacement runflats with regular tires (+E60 steel or more expensive F30 alloy spare wheel set in the trunk) and stock dampers with Koni Sport (if your car is non-xDrive)- this is the way to go to eliminate that jumps. __________________ '13 F30 320i (328i ECU) RWD M-Sport Michelin PSS, M-Sport brakes, 320i LCI muffler F32 bottom V-bar F80 bottom reinforcement plate Koni Sport, M-Performance springs, M135i Anti-roll bars
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