Mods for steering feel improvement?
Thread Starter
Member
Joined: Jul 2019
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Likes: 57
'09 C63 AMG
Mods for steering feel improvement?
Has anyone successfully added weight and feel to their steering with mods?
Monoball thrust arm bushings?
Coding?
More front tire?
Looking for increased weight and, more importantly, feel.
Monoball thrust arm bushings?
Coding?
More front tire?
Looking for increased weight and, more importantly, feel.
Thread Starter
Member
Joined: Jul 2019
Posts: 230
Likes: 57
'09 C63 AMG
Nothing on this, eh? Everybody else likes the steering as-is? 😆
This is one area where the W204 C63 was far superior. It would be great if there was a way to code-out some of the smoothing from the EPS.
This is one area where the W204 C63 was far superior. It would be great if there was a way to code-out some of the smoothing from the EPS.
Senior Member
Joined: Dec 2025
Posts: 497
Likes: 46
From: Keep it simple - keep it OEM
AMG C63s Coupe
You will optimize for race track ?
Coding:
I never noticed the steering feeling heavy
in the individual modes. i guess its a kind of e-steering which type i dont know but coding maybe a cheep solution if possible
Tire :
you can try 265 on front & 10“ rim
Monoball thrust arm bushings:
i dont know - newer seen for c63 but if you need front & rear for 100% balance
Coding:
I never noticed the steering feeling heavy
in the individual modes. i guess its a kind of e-steering which type i dont know but coding maybe a cheep solution if possible
Tire :
you can try 265 on front & 10“ rim
Monoball thrust arm bushings:
i dont know - newer seen for c63 but if you need front & rear for 100% balance
Last edited by C63s_Jack; Jun 21, 2026 at 01:33 AM.
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Joined: Apr 2013
Posts: 1,784
Likes: 183
Mercedes-Benz CLK 550
C63/S AMG means “Performance” !
Yet the reality is - OEM there is no Front Camber or Caster and no Rear Camber !
While the mention of “Improved Steering Response”. Even AMG models are a compromise - cost cutting applies. Not only no Camber / Caster adjustment but also the front thrust arm Bushes (Large 75mm / 3” Diameter) are not uprated but soft rubber.
At K-MAC we have the experience of manufacturing “Uprated Performance Bushings” longer than any other brand (1964).
MANUFACTURING A TOTAL SYSTEM FOR THE C63/S.
1) Uprated K-MAC Front Thrust arm bushes are Mono ball / Self aligning still allowing arms to travel through their required suspension arcs but dramatically improving Brake and Steering response.
2) With more than twice the load bearing / impact area of other brands.
3) Plus Specially designed without the need for special tools or time consuming need to remove arms to install.
NOT ONLY ARE K-MAC THRUST ARMS MONO BALL - BUT ALSO PROVIDE CASTER ADJUSTMENT.
NOTE: Can purchase separately. But seeing there is also no Front Camber to adjust tire contact angles to resolve excess edge wear or dial in more negative for performance or track days….
K-MAC Kit P/N 503316M Includes both Camber and Caster (up to 2 degrees Positive or Negative). Priced right at $595 both sides (including bush extraction / insertion tools).
REAR SUSPENSION
C63/S Rear Camber (plus extra Toe to compensate)
Sedan, Wagon #502226K $495
Coupe #502326-1K $495
Uprating soft rubber bushings at same time. Up to 3 degrees Pos. or Neg. Camber change. Also fit without special tools or need for arm removal.
Same as Front - Unique Patented design allows easily accessible single wrench adjustment (direct on alignment rack UNDER LOAD).
K-MAC C63/S kits retain the genuine OEM hi-strength forged alloy arms for security peace of mind, no warranty issues.
Express air delivery $40 one kit ($20 each extra).
SEE SPOILER RE C63/S “TOTAL SYSTEM")
AUDI to VOLVO - Experience Of Resolving OEM Suspension Shortcomings (and Costs) Since 1964 !
Yet the reality is - OEM there is no Front Camber or Caster and no Rear Camber !
While the mention of “Improved Steering Response”. Even AMG models are a compromise - cost cutting applies. Not only no Camber / Caster adjustment but also the front thrust arm Bushes (Large 75mm / 3” Diameter) are not uprated but soft rubber.
At K-MAC we have the experience of manufacturing “Uprated Performance Bushings” longer than any other brand (1964).
MANUFACTURING A TOTAL SYSTEM FOR THE C63/S.
1) Uprated K-MAC Front Thrust arm bushes are Mono ball / Self aligning still allowing arms to travel through their required suspension arcs but dramatically improving Brake and Steering response.
2) With more than twice the load bearing / impact area of other brands.
3) Plus Specially designed without the need for special tools or time consuming need to remove arms to install.
NOT ONLY ARE K-MAC THRUST ARMS MONO BALL - BUT ALSO PROVIDE CASTER ADJUSTMENT.
NOTE: Can purchase separately. But seeing there is also no Front Camber to adjust tire contact angles to resolve excess edge wear or dial in more negative for performance or track days….
K-MAC Kit P/N 503316M Includes both Camber and Caster (up to 2 degrees Positive or Negative). Priced right at $595 both sides (including bush extraction / insertion tools).
REAR SUSPENSION
C63/S Rear Camber (plus extra Toe to compensate)
Sedan, Wagon #502226K $495
Coupe #502326-1K $495
Uprating soft rubber bushings at same time. Up to 3 degrees Pos. or Neg. Camber change. Also fit without special tools or need for arm removal.
Same as Front - Unique Patented design allows easily accessible single wrench adjustment (direct on alignment rack UNDER LOAD).
K-MAC C63/S kits retain the genuine OEM hi-strength forged alloy arms for security peace of mind, no warranty issues.
Express air delivery $40 one kit ($20 each extra).
SEE SPOILER RE C63/S “TOTAL SYSTEM")
Spoiler
AUDI to VOLVO - Experience Of Resolving OEM Suspension Shortcomings (and Costs) Since 1964 !
Last edited by K-Mac; Yesterday at 09:26 PM.
Senior Member
Joined: Dec 2025
Posts: 497
Likes: 46
From: Keep it simple - keep it OEM
AMG C63s Coupe
@K-Mac
Sounds good.
I know 205 AMG C63 have smaler rubber inserts in Control arm OEM as normal 205.
Can you upload pictures from your C63 parts if you want.
Sounds good.
I know 205 AMG C63 have smaler rubber inserts in Control arm OEM as normal 205.
Can you upload pictures from your C63 parts if you want.
Last edited by C63s_Jack; Jun 21, 2026 at 07:47 AM.
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Out Of Control!!
Joined: Nov 2018
Posts: 11,661
Likes: 5,477
From: San Francisco Bay Area
2019 C63CS
What year is your C63 and is it an S or non-S? Coupe or Sedan?
FWIW, yes I do like the steering in my FL '19 C63S Coupe. The coupe has wider tracks for starters and is set up differently than the sedan and wagons. The S also has dynamic engine mounts which affects steering feel and response, so it becomes adjustable based on the mode, all S also have an electronic rear differential which torque vectors and that further enhances the steering. So all that will ultimately affect what you are talking about.
In the FL, the steering response/feel etc. is tied to the new AMG DYNAMICS chassis modes, which control the overall dynamics of the car. You can choose from 4 modes, Basic, Advanced, Pro and Master. The PFL didn't have this. It only allowed you to change the steering between Comfort and Sport and pretty much only affects how heavy it is, but didn't really change the dynamics.
The dynamic engine mounts make a big difference in the S as well, especially in the FL, because they tighten up the engine during spirited cornering, so the front end and steering becomes one unit. In the PFL the dynamic engines mounts were primally controlled by speed. They tightened up the faster you drove, so the new algorithm in the FL is better as it's tied to how dynamically you are driving. The engine mounts relax during normal moderate driving and tighten up as you start throwing the car into corners. The suspension is also much better in the FL. The front end feels great especially in Sport+ suspension mode and AMG DYNAMICS in Master.
So give us some context for your specific car.
FWIW, yes I do like the steering in my FL '19 C63S Coupe. The coupe has wider tracks for starters and is set up differently than the sedan and wagons. The S also has dynamic engine mounts which affects steering feel and response, so it becomes adjustable based on the mode, all S also have an electronic rear differential which torque vectors and that further enhances the steering. So all that will ultimately affect what you are talking about.
In the FL, the steering response/feel etc. is tied to the new AMG DYNAMICS chassis modes, which control the overall dynamics of the car. You can choose from 4 modes, Basic, Advanced, Pro and Master. The PFL didn't have this. It only allowed you to change the steering between Comfort and Sport and pretty much only affects how heavy it is, but didn't really change the dynamics.
The dynamic engine mounts make a big difference in the S as well, especially in the FL, because they tighten up the engine during spirited cornering, so the front end and steering becomes one unit. In the PFL the dynamic engines mounts were primally controlled by speed. They tightened up the faster you drove, so the new algorithm in the FL is better as it's tied to how dynamically you are driving. The engine mounts relax during normal moderate driving and tighten up as you start throwing the car into corners. The suspension is also much better in the FL. The front end feels great especially in Sport+ suspension mode and AMG DYNAMICS in Master.
So give us some context for your specific car.
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Thread Starter
Member
Joined: Jul 2019
Posts: 230
Likes: 57
'09 C63 AMG
What year is your C63 and is it an S or non-S? Coupe or Sedan?
FWIW, yes I do like the steering in my FL '19 C63S Coupe. The coupe has wider tracks for starters and is set up differently than the sedan and wagons. The S also has dynamic engine mounts which affects steering feel and response, so it becomes adjustable based on the mode, all S also have an electronic rear differential which torque vectors and that further enhances the steering. So all that will ultimately affect what you are talking about.
In the FL, the steering response/feel etc. is tied to the new AMG DYNAMICS chassis modes, which control the overall dynamics of the car. You can choose from 4 modes, Basic, Advanced, Pro and Master. The PFL didn't have this. It only allowed you to change the steering between Comfort and Sport and pretty much only affects how heavy it is, but didn't really change the dynamics.
The dynamic engine mounts make a big difference in the S as well, especially in the FL, because they tighten up the engine during spirited cornering, so the front end and steering becomes one unit. In the PFL the dynamic engines mounts were primally controlled by speed. They tightened up the faster you drove, so the new algorithm in the FL is better as it's tied to how dynamically you are driving. The engine mounts relax during normal moderate driving and tighten up as you start throwing the car into corners. The suspension is also much better in the FL. The front end feels great especially in Sport+ suspension mode and AMG DYNAMICS in Master.
So give us some context for your specific car.
FWIW, yes I do like the steering in my FL '19 C63S Coupe. The coupe has wider tracks for starters and is set up differently than the sedan and wagons. The S also has dynamic engine mounts which affects steering feel and response, so it becomes adjustable based on the mode, all S also have an electronic rear differential which torque vectors and that further enhances the steering. So all that will ultimately affect what you are talking about.
In the FL, the steering response/feel etc. is tied to the new AMG DYNAMICS chassis modes, which control the overall dynamics of the car. You can choose from 4 modes, Basic, Advanced, Pro and Master. The PFL didn't have this. It only allowed you to change the steering between Comfort and Sport and pretty much only affects how heavy it is, but didn't really change the dynamics.
The dynamic engine mounts make a big difference in the S as well, especially in the FL, because they tighten up the engine during spirited cornering, so the front end and steering becomes one unit. In the PFL the dynamic engines mounts were primally controlled by speed. They tightened up the faster you drove, so the new algorithm in the FL is better as it's tied to how dynamically you are driving. The engine mounts relax during normal moderate driving and tighten up as you start throwing the car into corners. The suspension is also much better in the FL. The front end feels great especially in Sport+ suspension mode and AMG DYNAMICS in Master.
So give us some context for your specific car.
Was any of the suspension hardware changed in the '19+ cars?
Out Of Control!!
Joined: Nov 2018
Posts: 11,661
Likes: 5,477
From: San Francisco Bay Area
2019 C63CS
Yes, suspension hardware is different. Springs are different, bushings are different and I believe the dampers are updated, too. Then the software behind all of it is very different because of the AMG DYNAMICS system. The FL S also got the 9-stage traction control system from the GT R, so power delivery and traction is different and the differential is faster acting, making it more dynamic in corners, not to mention the much better 9-speed MCT. FWIW, after driving the PFL coupe and sedans, I actually crossed the C63 off my list, and only after they unveiled the FL did I get interested again. It fixed all the things I didn't like about the PFL.
Honestly, I highly doubt you'll find a simple mod to achieve what you are looking for. It takes a more comprehensive approach. Look at CarBahn, they have some comprehensive chassis upgrades for the C63, but they also focused on the coupe. I haven't looked at them in a while, so not sure if they offer their upgrades for the sedan as well.
Last edited by superswiss; Yesterday at 12:17 AM.
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Joined: Jul 2019
Posts: 230
Likes: 57
'09 C63 AMG
Ok, that explains a few things now. When I was in the market I first drove a 2018 sedan, followed by the coupe. Never liked how the sedan drove. The coupe and sedan are closely related, but they are also different. The sedan is undertired for example and feels more like a straight line car.
Yes, suspension hardware is different. Springs are different, bushings are different and I believe the dampers are updated, too. Then the software behind all of it is very different because of the AMG DYNAMICS system. The FL S also got the 9-stage traction control system from the GT R, so power delivery and traction is different and the differential is faster acting, making it more dynamic in corners, not to mention the much better 9-speed MCT. FWIW, after driving the PFL coupe and sedans, I actually crossed the C63 off my list, and only after they unveiled the FL did I get interested again. It fixed all the things I didn't like about the PFL.
Honestly, I highly doubt you'll find a simple mod to achieve what you are looking for. It takes a more comprehensive approach. Look at CarBahn, they have some comprehensive chassis upgrades for the C63, but they also focused on the coupe. I haven't looked at them in a while, so not sure if they offer their upgrades for the sedan as well.
Yes, suspension hardware is different. Springs are different, bushings are different and I believe the dampers are updated, too. Then the software behind all of it is very different because of the AMG DYNAMICS system. The FL S also got the 9-stage traction control system from the GT R, so power delivery and traction is different and the differential is faster acting, making it more dynamic in corners, not to mention the much better 9-speed MCT. FWIW, after driving the PFL coupe and sedans, I actually crossed the C63 off my list, and only after they unveiled the FL did I get interested again. It fixed all the things I didn't like about the PFL.
Honestly, I highly doubt you'll find a simple mod to achieve what you are looking for. It takes a more comprehensive approach. Look at CarBahn, they have some comprehensive chassis upgrades for the C63, but they also focused on the coupe. I haven't looked at them in a while, so not sure if they offer their upgrades for the sedan as well.
The car is definitely getting more front tire at a minimum.
I've had EPS tuning coded on BMWs in the past, which removed a lot of the electronic "smoothing" and allowed much better communication. EPS systems are tuned to cancel out a lot of the feedback from the road surface by countering little twitches from the front wheels. Great feature in a luxury car, but in a high performance car I want to feel what the tires are doing. Unfortunately because it's an AMG, and most AMG enthusiasts are less concerned with steering feedback than brute force and straight line acceleration, there probably isn't enough market to warrant the development time on something like that. My best chance of that would probably be coding the car to an AMG GT steering tune. But who is out there working on that? Probably nobody.
Out Of Control!!
Joined: Nov 2018
Posts: 11,661
Likes: 5,477
From: San Francisco Bay Area
2019 C63CS
Carbahn makes a few parts. Rear toe links and monoballs for the front thrust arms. The rear toe links are marketed as an improvement for handling, but there's no mention of any steering improvement for the thrust arm monoballs. Seems like if they did improve steering, that would he a selling point that Carbahn is unlikely to omit from their advertising. Although they do allow caster adjustment which may add some weight (with increased + caster).
The car is definitely getting more front tire at a minimum.
I've had EPS tuning coded on BMWs in the past, which removed a lot of the electronic "smoothing" and allowed much better communication. EPS systems are tuned to cancel out a lot of the feedback from the road surface by countering little twitches from the front wheels. Great feature in a luxury car, but in a high performance car I want to feel what the tires are doing. Unfortunately because it's an AMG, and most AMG enthusiasts are less concerned with steering feedback than brute force and straight line acceleration, there probably isn't enough market to warrant the development time on something like that. My best chance of that would probably be coding the car to an AMG GT steering tune. But who is out there working on that? Probably nobody.
The car is definitely getting more front tire at a minimum.
I've had EPS tuning coded on BMWs in the past, which removed a lot of the electronic "smoothing" and allowed much better communication. EPS systems are tuned to cancel out a lot of the feedback from the road surface by countering little twitches from the front wheels. Great feature in a luxury car, but in a high performance car I want to feel what the tires are doing. Unfortunately because it's an AMG, and most AMG enthusiasts are less concerned with steering feedback than brute force and straight line acceleration, there probably isn't enough market to warrant the development time on something like that. My best chance of that would probably be coding the car to an AMG GT steering tune. But who is out there working on that? Probably nobody.
