TModelle

I’ve searched the forum and the internet quite extensively but couldn’t find a definitive answer about lowering options for C190 AMG GT standard suspension (no ride control).

It seems most of the lowering options from KW, Weistec, Renntech, H&R, etc. are all for Ride Control suspension.

Has anyone fitted lowering kits for the non-S AMG GT that doesn’t have Ride Control?

AMG 17GT

Yes. Renntech coils slip over multimatic shocks and are adjustable. Fixes the overly stiff stock springs.

TModelle

That’s awesome, do I need to buy a Renntech specific coil set for the Multimatic or is it the same kit number as the one for Ride Control.

If they are the same, I wonder if the KW HAS can be used for both versions too.

Is Renntech set known for better comfort over say KW or Weistec?

AMG 17GT

Don’t remember if there was a 2nd option. Call them.

I went with Renntech, as I believed them to be a bit more plush.

boosted20v

1 part number regardless of shocks. Pretty sure it's the same for KW and H&R as well.

TModelle

I did get a response today from KW and they said that their kit is specifically for electronic shocks only.

Wolfman

I think you are overthinking this. Wether a shock stiffness is adjustable or not should have no impact on the springs. It's not that there is a height difference between the two.

TModelle

I don't think I am overthinking this, the Multimatic shock construction look totally different from the Ride Control shocks. It would be quite a situation if I bought the coils and they wouldn't fit the Multimatic DSSV housings!

Here's a link to how a Multimatic shock from the base GT looks. https://i.ebayimg.com/images/g/wxsAA...az/s-l1600.jpg

boosted20v

Buy the Renntech's, problem solved. I can't compare but most say it's a better ride than the KW's.

Wolfman

This definitely looks different than anything I have seen in a GTS/C. You sure this is a shock from a AMG GT?

Edit: NM. Just saw one too. Springs looks the same but I can see this to be an issue.

AMG 17GT

Multimatic shock cost. Call to confirm.maybe you could buy without spring.

boosted20v

I find this answer odd, I would assume that they only tested their springs on a GTS when bringing them to market therefore they are only willing to say that's what they will work on. Renntech doesn't even ask which suspension you have and whether you enter that you have a GT or a GTS on their site you get the exact same part number. Did they say what the difference was?

TModelle

KW says:
Thank you for your email and for getting in contact with our company.This kit is only compatible for vehicle with electronic dampers.

Weistec says:
No, it is only for the models that have the electronic damper control. The standard dampers have a different body diameter that makes them not compatible.


I guess no one’s going to try buying them and risk them not being able to fit when Renntech says that theirs fit and AMG17GT has fitted his.

boosted20v

Perhaps there is a design difference with the Renntech's. I have them as well and have 0 issues.

TModelle

Are you on Multimatic too like AMG17GT and me, or Ride Control?

boosted20v

Multi Matic, mine is an 18 and a roadster but the Renntech part number is still the same as for the 15 - 17's.

TModelle

Mystery solved. Renntech adjustable spring kits come with different hardware for Ride Control and Non Ride Control shocks in the one kit. That is why they can be used for Non Ride Control equipped cars while KW and Weistec adjustable spring kits cannot.

Weistec’s explanation of the shock bodies having different diameters is 100% correct.

boosted20v

Did you purchase the Renntech's?

TModelle

Yes, I did.

They are the only kit that will fit the Multimatics.

AMG 17GT

And impressions?

TModelle

Haven’t installed them yet, just waiting on new shocks all round before I put them on.

However, I can’t imagine how they can be any more comfortable as the stock setup. The suspension is so comfy as it is.

AMG 17GT

Yeah, it’s not so much about comfort as it is compliant and you get more spring travel on the renntech, which I believe is a plusher ride.

so you bought a pair of multimatics?

TModelle

I ordered both front and rear. New shocks all round.