suggestions please

prof.2 · 07-07-2015, 01:31 PM

Help with ideas please. I have a stock 2013 128i convertible and would like to improve the suspension. I am used to driving a Honda S2000 CR and miss the cornering. While I realize they are very different cars , what can I do to improve handling. I do not plan on racing and like simple bolt on mods,OEM if possible. Will M sport parts work? I notice several ads from people upgrading thier factory M sport suspensions. Any ideas will be appreciated.

lowbudgethero · 07-07-2015, 01:49 PM

Tires, wheels, shocks/springs, rear subframe bushing inserts

135Pats · 07-07-2015, 03:28 PM

The two below items will get you pretty far for a street driven car.

1. M3 front control arms - turn in feel is vastly improved and the addtl. camber reduces the car's natural tendency to push a bit on entry.
2. M3 rear subframe bushings - quiets the rear down and largely removes that jumpy feeling you get from the back end when it covers an imperfection or bump in the road.

Dackelone · 07-07-2015, 03:40 PM

A set of good shocks and springs will do wonders. I don't think you should go to 1M/M3 front control arms. That might be a little too much for a vert's ride. Go with some Bilstein's or Koni's with a mild drop/spring(swifts or eibach). That will do wonders for the way your car rides & handles. I would also replace your rear shock mounts with Dinan's shock mount kit.

I wouldn't bother with a 135i m-sport suspension. Most likely it will be fairly worn out even with low miles(50K miles). Your better off with new shocks and springs - bc it's so much work to replace the suspension parts. After that, some Michelin PSS non-run flat tires would be my next mod.

good luck,
Dackel

prof.2 · 07-07-2015, 04:51 PM

Thanks everyone! I do appreciate Your good ideas. I will start with the basics and go from there. Will scour the classifieds also/

dbronnik · 07-12-2015, 01:21 AM

Quote:

Originally Posted by Dackelone

I don't think you should go to 1M/M3 front control arms. That might be a little too much for a vert's ride.

I have all the M3 control arms bits and solid bushings on my vert and the ride is fine on the street

HP Autosport · 07-15-2015, 10:20 PM

The best thing you can do is replace the factory struts and shocks with Koni Yellows or similar. If OEM is a must, you are stuck with BMW PS. Add the M3 front control arms and rear guide rods while you are at it.

prof.2 · 07-16-2015, 10:20 AM

Thanks again everyone. I have bought a set of BMW perf shocks and now looking at springs. I am using 261 wheels

pj.rodriguez · 07-16-2015, 12:50 PM

Quote:

Originally Posted by dbronnik

Quote:

Originally Posted by Dackelone

I don't think you should go to 1M/M3 front control arms. That might be a little too much for a vert's ride.

I have all the M3 control arms bits and solid bushings on my vert and the ride is fine on the street

Solid bushings in which components? Control arms, subframe?

chris82 · 07-16-2015, 02:07 PM

Quote:

Originally Posted by pj.rodriguez

Solid bushings in which components? Control arms, subframe?

My brother's car has the M3 front control arms with a TCK monoball kit. There is no additional noise, none!

dbronnik · 07-16-2015, 03:39 PM

Quote:

Originally Posted by pj.rodriguez

Solid bushings in which components? Control arms, subframe?

rear subframe bushings

prof.2 · 07-17-2015, 07:35 AM

Thanks again everyone.

NIB · 08-14-2015, 04:53 PM

Quote:

Originally Posted by Dackelone

A set of good shocks and springs will do wonders. I don't think you should go to 1M/M3 front control arms. That might be a little too much for a vert's ride. Go with some Bilstein's or Koni's with a mild drop/spring(swifts or eibach). That will do wonders for the way your car rides & handles. I would also replace your rear shock mounts with Dinan's shock mount kit.

I wouldn't bother with a 135i m-sport suspension. Most likely it will be fairly worn out even with low miles(50K miles). Your better off with new shocks and springs - bc it's so much work to replace the suspension parts. After that, some Michelin PSS non-run flat tires would be my next mod.

good luck,
Dackel

Can you or somebody advice me on what could be the problem with mine 128i Convertible. If the roof is closed, mine car vibrates at low speed of 60-80km/h and increases tremendously as the speed increases. When break is applied, the Steering wheel does not shake. With the roof done, the shaking is considerable minimized.

Based on advice of mine BMW Mechanic, I have changed all the Brake Drums (Rotor), Steering Arms Front and Back with new Stabilizer Linkage, the Front Hub Bearing and Back bearing, with Tyre Balancing and Alignment done by Dunlop Tyre Outreach. All parts changed are genuine BMW Parts and I am still having the same problem.

Kindly advice.

Dackelone · 08-14-2015, 05:18 PM

Quote:

Originally Posted by NIB

Can you or somebody advice me on what could be the problem with mine 128i Convertible. If the roof is closed, mine car vibrates at low speed of 60-80km/h and increases tremendously as the speed increases. When break is applied, the Steering wheel does not shake. With the roof done, the shaking is considerable minimized.

Based on advice of mine BMW Mechanic, I have changed all the Brake Drums (Rotor), Steering Arms Front and Back with new Stabilizer Linkage, the Front Hub Bearing and Back bearing, with Tyre Balancing and Alignment done by Dunlop Tyre Outreach. All parts changed are genuine BMW Parts and I am still having the same problem.

Kindly advice.

You could have a bad tire/wheel that is out of "round". Maybe try a new tire shop. One that can do "road force balancing".

Dackel

NIB · 08-15-2015, 06:57 AM

Thanks Dackelone. I will get back after I try your advice.

07-07-2015, 01:31 PM	#1
prof.2 Private 11 Rep 81 Posts Drives: 2013 128i Convertible Join Date: Jul 2015 Location: Columbus Ohio iTrader: (7)	suggestions please Help with ideas please. I have a stock 2013 128i convertible and would like to improve the suspension. I am used to driving a Honda S2000 CR and miss the cornering. While I realize they are very different cars , what can I do to improve handling. I do not plan on racing and like simple bolt on mods,OEM if possible. Will M sport parts work? I notice several ads from people upgrading thier factory M sport suspensions. Any ideas will be appreciated.
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07-07-2015, 01:49 PM	#2
lowbudgethero Captain 125 Rep 750 Posts Drives: '98 Z3M (gone), '09 135i Join Date: Feb 2013 Location: 908 iTrader: (0) Garage List 2009 BMW 135i [8.50]	Tires, wheels, shocks/springs, rear subframe bushing inserts
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07-07-2015, 03:28 PM	#3
135Pats Major General 456 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	The two below items will get you pretty far for a street driven car. 1. M3 front control arms - turn in feel is vastly improved and the addtl. camber reduces the car's natural tendency to push a bit on entry. 2. M3 rear subframe bushings - quiets the rear down and largely removes that jumpy feeling you get from the back end when it covers an imperfection or bump in the road. __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
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07-07-2015, 03:40 PM	#4
Dackelone European Editor 10589 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	A set of good shocks and springs will do wonders. I don't think you should go to 1M/M3 front control arms. That might be a little too much for a vert's ride. Go with some Bilstein's or Koni's with a mild drop/spring(swifts or eibach). That will do wonders for the way your car rides & handles. I would also replace your rear shock mounts with Dinan's shock mount kit. I wouldn't bother with a 135i m-sport suspension. Most likely it will be fairly worn out even with low miles(50K miles). Your better off with new shocks and springs - bc it's so much work to replace the suspension parts. After that, some Michelin PSS non-run flat tires would be my next mod. good luck, Dackel __________________ Dackel's European Delivery Museum Guide
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07-07-2015, 04:51 PM	#5
prof.2 Private 11 Rep 81 Posts Drives: 2013 128i Convertible Join Date: Jul 2015 Location: Columbus Ohio iTrader: (7)	Thanks everyone! I do appreciate Your good ideas. I will start with the basics and go from there. Will scour the classifieds also/
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07-15-2015, 10:20 PM	#7
HP Autosport Supreme Allied Commander 3845 Rep 54,376 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	The best thing you can do is replace the factory struts and shocks with Koni Yellows or similar. If OEM is a must, you are stuck with BMW PS. Add the M3 front control arms and rear guide rods while you are at it.
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07-16-2015, 10:20 AM	#8
prof.2 Private 11 Rep 81 Posts Drives: 2013 128i Convertible Join Date: Jul 2015 Location: Columbus Ohio iTrader: (7)	Thanks again everyone. I have bought a set of BMW perf shocks and now looking at springs. I am using 261 wheels
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07-17-2015, 07:35 AM	#12
prof.2 Private 11 Rep 81 Posts Drives: 2013 128i Convertible Join Date: Jul 2015 Location: Columbus Ohio iTrader: (7)	Thanks again everyone.
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08-15-2015, 06:57 AM	#15
NIB Private 3 Rep 53 Posts Drives: 2009 128i BMW Non iDrive Join Date: Jun 2015 Location: Lagos Nigeria iTrader: (0)	Thanks Dackelone. I will get back after I try your advice.
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