I need opinions/reviews on aftermarket suspension - Mercedes Benz SLK Forum

Performance MODS for the R170 Tuning and Performance modifications for your SLK

 6Likes
  • 2 Post By Pictor
  • 2 Post By Turdo2
  • 1 Post By M4rCu5
  • 1 Post By Sir_Wizington
 
LinkBack Thread Tools
#1 Old 05-06-2019
Registered Users
 
Join Date: Dec 2018
Location: Dorset, England
Vehicle: 2001 SLK320 auto
Posts: 24
Country:
Chats: 0
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Thanks: 1
Thanked 3 Times in 3 Posts
(Thread Starter)
I need opinions/reviews on aftermarket suspension

Hello.

So my 18 yr old SLK320 with 120k miles still has all the original springs, shocks and bushings and I’m sure you can guess what the handling is like now, very squishy, slight body roll and very little feeling of what the car is doing until it start so to slide around etc. You can literally feel how much the wheels are moving due to worn bushings.

I’m looking at replacing all the springs, shocks and bushings in a few weeks and I need your opinions/reviews if you have installed any suspension mods.

I want the car to feel like it’s bolted down on rails, just a good confident solid feeling when pushing the limits. My Dad has an 2012 R172 with the AMG handling pack, this is the sort of suspension feeling I’d like to go for, maybe a fraction stiffer.

So far I’m leaning towards the H&R -30mm Springs, either #1 /2 springs pads. Bilstein B8 shocks, replacing all the front bushings with polyurethane, and the back with OEM rubber bushings and polyurethane subframe mounts for the rear. Also going to be changing the 17” rims to 18” to reduce tyre roll.

I understand the H&R cup kit is very stiff and the Eibach kit is close to stock.

Just for reference I’d call the R170s stock ride soft, comfortable and very forgiving and the R172 with the handing pack quite stiff by still comfortable and reasonably forgiving, I like how the car just feels solid and predictable. As a 19 yr old I’m not overly worried about NVH, and not great ride quality.

If anyone with a lowered stiffend car could give me some reviews of these suspension products that would be great.

Thanks
Aidan
Sir_Wizington is offline  
Sponsored Links
Advertisement
 
#2 Old 05-06-2019
Premium Member
 
Pictor's Avatar
 
Join Date: Jul 2015
Location: Australia
Vehicle: 2001 SLK320
Posts: 1,031
Country:
Chats: 0
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 217 Post(s)
Thanks: 22
Thanked 88 Times in 73 Posts
The Design Engineers in the suspension group spent hundreds and hundreds of hours getting all the ride and handling parameters to the best compromise for real world conditions for this car. Since UK has such a variety of good and bad roads, narrow back roads and long motorways the suspension needs to deal with all conditions.
A hotch potch of someone’s opinions about screwing down the suspensions with stiff springs and dampers may feel better on the track but as the car skips around corners on all the bumps, it will not feel like it is on rails,,,,
These are not light cars at 1300-1400 kg. They already sit on suspension with less travel than the C & E class that the bits were borrowed from. They need travel to work. Unless the car only drives on racetracks which are generally very smooth.

If your car has worn suspension you may be amazed at how good it feels with all new bushes throughout and new stock dampers and maybe new stock springs.
Don’t think SLK32 parts are the answer either, they are 180kg heavier than the early 230 so it has to have a different spec.
My postfacelift 320 is supposed to be 9mm lower than my last prefacelift 230 and it certainly does not ride as well and I don’t think the handling is measureably better.
Oh, put good tyres on it too.
Avel Du and Dave2302 like this.
Pictor is offline  
#3 Old 05-06-2019
Premium Member

 
Turdo2's Avatar
 
Join Date: Apr 2013
Location: Kansas
Vehicle: 1999 SLK 5.4 M113 V8
Other Toys: Ram 2500, Plymouth Duster
Posts: 1,305
Country:
Chats: 0
Mentioned: 381 Post(s)
Tagged: 1 Thread(s)
Quoted: 348 Post(s)
Thanks: 0
Thanked 76 Times in 68 Posts
Garage
I hear poly bushings will really tighten things up, but I dont believe there is a cost effective kit available.

Mine has coils, shocks and swaybars from a CLK55 and it feels really good. It's also on #1 spring pads but isn't much lower than stock - which is fine with me, I dont like how these cars look lowered.

I have also heard the H&R kit is basically just for lowering, and not so much for stiffness.
Avel Du and Dave2302 like this.
Turdo2 is offline  
 
#4 Old 05-06-2019
Registered Users
 
M4rCu5's Avatar
 
Join Date: Jul 2014
Location: Melton Mowbray
Vehicle: 2001 SLK200K, 2001 SLK320
Posts: 965
Country:
Chats: 0
Mentioned: 56 Post(s)
Tagged: 0 Thread(s)
Quoted: 206 Post(s)
Thanks: 69
Thanked 94 Times in 90 Posts
Garage
As you plan to change them anyway, I'd start with upping the wheel/tyre size from 17" to 18" first.
That ˝" less rubber on the sidewalls makes a substantial difference all on its' own and you might just decide that that's good enough (for now at least).
Dave2302 likes this.
M4rCu5 is online now  
#5 Old 05-07-2019
Registered Users
 
Join Date: Dec 2018
Location: Dorset, England
Vehicle: 2001 SLK320 auto
Posts: 24
Country:
Chats: 0
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Thanks: 1
Thanked 3 Times in 3 Posts
(Thread Starter)
Thanks for the info guys.

Well i definitely need to change the shocks and bushes because they are all shot. Tbh I hate the stock suspension height, the front is okay however the mega wheel gap on the back just makes it look like a toy town car imo 😂

I’ve heard the Eibach Kit gives pretty close to stock ride but is 30mm lower. Maybe this is the one to go for.

I definitely respect that the MB engineers know what they are doing with suspension but I’m pretty sure back in the early 2000s they were more interested in comfort and luxury than handling. Everyone who goes in my car makes remarks about how comfy and un-sports car like the ride is.

I think I’ll go for the wheels after the suspension because i do need to get the bushes and shocks replaced anyways. Not sure if they will pass the MOT this year.
M4rCu5 likes this.
Sir_Wizington is offline  
Sponsored Links
Advertisement
 
Reply

  Lower Navigation
Go Back   Mercedes Benz SLK Forum > Mercedes Benz R170 SLK Class Cars > Performance MODS for the R170

Bookmarks

Quick Reply
Message:
Options
Upload your files to MEGAUPLOAD
Upload your images to ImageShack

Register Now



In order to be able to post messages on the Mercedes Benz SLK Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
2005 SLK350 R171 without COMAND, on replacing the A20 with an aftermarket NAV unit ( LA_BENZ General Modifications R171 35 4 Days Ago 10:57 AM
Time for a new suspension? conleyjb Performance MODS for the R170 19 06-03-2019 12:07 AM
Amazon could shake up parts business Same-day delivery allows for wider presence in aftermarket Berliner Heckflosse Off Topic 0 02-20-2017 12:23 PM
F1 teams back active suspension return Berliner Heckflosse Motorsports 2 02-19-2017 03:30 PM
Unbranded, aftermarket suspension parts conleyjb SLK R170 General Discussion 6 10-23-2014 09:27 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 

Clubs, Garage Plus vBulletin Plugins by Drive Thru Online, Inc.