X4 M40i G02 spring upgrade problem

JDAM40I · 05-02-2023, 03:04 PM

I recently upgraded my x4 M40 springs, its a little lower now, the springs are specifically for the x4 G02 body, but the car feels unstable on while going through uneven streets, like if it moves side to side ( tbh I don't know how to describe it ) dos anyone know why this is happening?

5LEEPR_G01 · 05-02-2023, 04:16 PM

Likely bump steer. If you’re lowered enough you’d be hitting the bump stops on even the smallest of road imperfections

Burr001 · 05-02-2023, 08:05 PM

Quote:

Originally Posted by JDAM40I

I recently upgraded my x4 M40 springs, its a little lower now, the springs are specifically for the x4 G02 body, but the car feels unstable on while going through uneven streets, like if it moves side to side ( tbh I don't know how to describe it ) dos anyone know why this is happening?

What springs did you use?

JDAM40I · 10-04-2023, 04:32 AM

I figured it out, it wasn't well balanced LOL my bad

Rottweiler · 10-04-2023, 12:02 PM

Quote:

Originally Posted by JDAM40I

I figured it out, it wasn't well balanced LOL my bad

Well balanced? Not quite sure I know what you mean tbh

suby01 · 10-04-2023, 01:35 PM

I like lamp.

Gr8ZongB58 · 10-04-2023, 01:37 PM

Quote:

Originally Posted by Rottweiler

Well balanced? Not quite sure I know what you mean tbh

Maybe op means "corner balanced", which would be suspect on adjustable springs/coilovers if diy.

Keefy · 10-04-2023, 02:19 PM

Or never had the alignment done afterwards?

JDAM40I · 10-05-2023, 06:29 AM

Quote:

Originally Posted by Rottweiler

Well balanced? Not quite sure I know what you mean tbh

like for example when you change rims and tires you have to do Balance and Alignment

05-02-2023, 03:04 PM	#1
JDAM40I New Member 0 Rep 12 Posts Drives: BMW X4 M40i 2019 G02 Join Date: Mar 2020 Location: Mexico iTrader: (0)	X4 M40i G02 spring upgrade problem I recently upgraded my x4 M40 springs, its a little lower now, the springs are specifically for the x4 G02 body, but the car feels unstable on while going through uneven streets, like if it moves side to side ( tbh I don't know how to describe it ) dos anyone know why this is happening?
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05-02-2023, 04:16 PM	#2
5LEEPR_G01 First Lieutenant 487 Rep 363 Posts Drives: LCI X3M40i (on order) Join Date: Feb 2022 Location: Austin iTrader: (0) Garage List 23 X3 M40i [9.75]	Likely bump steer. If you’re lowered enough you’d be hitting the bump stops on even the smallest of road imperfections
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10-04-2023, 04:32 AM	#4
JDAM40I New Member 0 Rep 12 Posts Drives: BMW X4 M40i 2019 G02 Join Date: Mar 2020 Location: Mexico iTrader: (0)	I figured it out, it wasn't well balanced LOL my bad
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10-04-2023, 01:35 PM	#6
suby01 Cowboy Astronaut Millionaire 2323 Rep 2,889 Posts Drives: 2020 X3 M40i Join Date: Aug 2019 Location: CT, USA iTrader: (0)	I like lamp. __________________ The Youtubes https://youtu.be/gzinBJjxIUY Insta https://www.instagram.com/gatosandturbos/
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10-04-2023, 02:19 PM	#8
Keefy Lieutenant Colonel 1641 Rep 1,558 Posts Drives: 2022 X3 M40d LCI Join Date: Feb 2022 Location: Scotland iTrader: (0) Garage List 2022 BMW X3 M40d LCI [8.92]	Or never had the alignment done afterwards? __________________ Current - 2022 X3 M40d LCI in Brooklyn Grey. Modifications - AutoID Front Splitter. DTUK Pedalbox Plus. Gloss Black M Badges. 3d Maxpider Kuga Floor Matts & Cargo liner. BMW M-Performance Flow Through Spoiler. Mid-Trunk Spoiler. 15mm Spacers all round. AP Arch Guards. X3M Side Vents. 699M Wheels Gloss Black
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