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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > 335Xi Suspention refresh project



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      08-12-2020, 07:00 PM   #1
Twinning_N54
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335Xi Suspention refresh project

I have been running BC coilovers for over a year, was definitely an improvement, both in handling and appearance (lowerd the car 2inches)

handling wasn't improved as much as I thought it would, I really wanted a nice planted feel and the BCs just didnt do it for me in my daily driving.

So I finally decided to just sell my BC coilovers and redo my suspension setup. Its kind of a refresh/upgrade all-in one.

here is my parts list, as much as my budge would allow anyways

OEM replacement parts;
Front Upper Strut Mount - Lemforder
Front Upper Spring Plate - Hamburg Tech
Front Strut Carrier Gasket - Genuine BMW
Front Strut Mount Plate - Hamburg Tech
Front Ball Joint - Lemforder
Front and Rear endlinks -Meyle HD
Front Tie Rod End - Febi
Rear Lower Shock Mount - Lemforder

Aftermarket replacements
Bilstein B14 Coilover kit
M3/1M Rear Upper Control Arm Upgrade Kit
Front Sway Bar - 25.5mm Heavy Duty - UUC
Rear Sway Bar 19.5mm Heavy Duty - UUC

Front lower control polyurethane bushings - Strongflex RED 80ShA
Rear Upper Shock polyurethane mount - Strongflex RED 80ShA


8/18/2020 Front lower control arm bushing upgrade
Front lower control polyurethane bushings - Strongflex RED 80ShA
install and removal was fairly simple, two 18mm socket and wrench for counter hold. Torque to 100Nm +90degree turn

ball joint was a 24mm w/ T30 counter hold Torque to 60Nm

The hard part was getting the old bushings pressed out and having the new bushings pressed in.

8/30/2020
Got a megan strut bar, removed the logo and painted everything oem black to give it the stealth look
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Last edited by Twinning_N54; 09-01-2020 at 10:26 PM..
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      08-14-2020, 04:19 PM   #2
carypearson
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Let me know how this goes.

I have an 08 335xi with the stock suspension (no sport even though came with the sport package, still upset about that)

I have not yet touched the suspension and the car has 170K miles, so I need to pretty much replace everything at this time.
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      08-14-2020, 04:51 PM   #3
LemansE90335xi
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I'm also interested to know how this turns out. Do you ever track the car?
I'm looking for a light duty track-capable car that is still comfortable for road trips.
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      08-14-2020, 09:04 PM   #4
Raptor04
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Does whiteline make a front sway bar for the xi?
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      08-14-2020, 09:09 PM   #5
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Might just do M3 rear subframe bushings and PU Sway bar bushing
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      08-18-2020, 05:42 PM   #6
Twinning_N54
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Quote:
Originally Posted by Raptor04 View Post
Does whiteline make a front sway bar for the xi?

yes they do, I saw them on ECS tuning
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      08-25-2020, 09:59 PM   #7
335xs2dinan
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Quote:
Originally Posted by carypearson View Post
Let me know how this goes.

I have an 08 335xi with the stock suspension (no sport even though came with the sport package, still upset about that)

I have not yet touched the suspension and the car has 170K miles, so I need to pretty much replace everything at this time.
Quote:
Originally Posted by carypearson View Post
Let me know how this goes.

I have an 08 335xi with the stock suspension (no sport even though came with the sport package, still upset about that)

I have not yet touched the suspension and the car has 170K miles, so I need to pretty much replace everything at this time.
All xi or x drive models have their own stock suspension. There was no separate sport suspension for xi from the factory.
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      09-22-2020, 08:51 PM   #8
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Well I am running B8's all around with an H&R Racing Sport Spring Lowering Kit. So far so good and my challenge is Chicago's Notorious Pot Holes. I did have to LINE my ENGINE shield with the same stuff under the hood there is some buffer between the plastic and the actual bottom of the car so things under there don't get pressed too hard when going over speed humps. Which are also all over my area.
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      09-24-2020, 03:04 PM   #9
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You might want to consider the AKG rear shock mounts. Have the poly version on both my cars, great upgrade in my opinion. I went the turner monoball route on the FCAB, I'd be curious to hear how you like the poly bushings.
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