2018 S560 Ride quality / choosing rim size
One issue i am having is ride quality due to minor bumps and manhole covers where i live. also having a very slight wheel vibration nothing like a major shimmy indicating something is terribly wrong just minor inconvenience.
Been doing research via the forums here and cant really wrap my head around the best option to improve ride quality, I know from what i have seen is ditch the eagle f1 runflats and downside my rims from 20's
i have a staggered wheel setup and am trying to decide whether to go with OEM 19'' wheels and bridgestones quiettracks or go with after market 18'' rims with the same tires.
Just super confused on how all this works because I am 22 years old and I dont have much experience with cars besides oil changes and alignments and dealer service every couple months.
does my car have sports calibers preventing the downsize to 18'' because of the staggered setup or is that something i will have to ask the dealership when im there next.
in the mean time i have deflated my tire psi to 35 in front and 38 in back just 1psi lower than the recommended and this has seemed to make the ride much better as the merc dealership inflates my tires to 41 all around which is stiff as a wooden board when driving. PLEASE HELP THIS YOUNGSTER
please excuse the cockeyed emblem it was after i got done washing the car
19" and non-run-craps will be better still.
You will not find a "lot" of 18" wheels that will fit--and be very careful about fitment if you go this route.
Regarding tires, be aware most of the top-rated tires for ride and noise are not available in the sizes required in back with a staggered set-up. Bridgestone for example does not make a QuietTrack in size 275/35-20 for the rear. That leaves you with 18" wheels as the only way to get the highest-rated tires for ride and noise (there are of course other highly-rated tires that will fit ... look at TireRack's ratings tables to see the many options).
Good news is your car is not an "AMG Sport Line" car, and therefore will accept 18" wheels if you choose to go that route.
Last edited by Tom in Austin; Dec 19, 2021 at 08:17 PM.




Going to a good set of 20" NRFTs will help, but going to 19" with NRFTs will be even better.
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Last edited by WillKite; Dec 19, 2021 at 10:55 PM.
It's costly and a bit involved but perfectly doable. It allowed me to run tires I really like (Pirelli Cinturato P7 AS+) and to rotate them so I'm not stuck with that awkward decision whether to replace all four at once when only the rears actually need it. I put on some nice chrome W221 19s just because I like the look of chromes on a dark-colored sedan. Now I enjoy a real luxury ride and keep the suspension setting in "Sport" mode nearly all the time.
Oh, and when I was 22 I bought my first car with air conditioning, a real treat! Nice Olds Cutlass with a "Rocket" V-8 and a sweet ride.
Last edited by Tom in Austin; Dec 20, 2021 at 11:42 AM.
a) drive like grandmother on her way to church :: sure.
b) take the car to a road race track :: no.
c) stomp on the throttle on damp road to pass quickly :: maybe-maybe not depending on your driving skill.
Also note: while some of the above tires are the quietest, once you lose the run-craps the difference between a super quiet tire and a not-so-super quiet tire diminishes into insignificance.
Nice first car! Me rode a $300 car at that age..
Some guys here will tell you to go with over-priced Michelins, but IMO that is just throwing money away as these are every bit as good and significantly less expensive. The ride is also quieter. You can invest your savings on not buying new wheels and expensive Michelins and put it into crypto instead. Also, run at 34 PSI at al 4 corners for optimal ride.

Last edited by DaveW68; Dec 21, 2021 at 10:46 AM.
make sure your 20s arent bent

Knowing whatr I know now.....wish I had gone for the MBC. That was the original demo I drove and thought the price was stupid and not worth it. I can be wrong. Also, MBC only comes with 18's I am told.
Last edited by mfligelman; Dec 21, 2021 at 04:21 PM. Reason: Sp
Knowing whatr I know now.....wish I had gone for the MBC. That was the original demo I drove and thought the price was stupid and not worth it. I can be wrong. Also, MBC only comes with 18's I am told.
Knowing whatr I know now.....wish I had gone for the MBC. That was the original demo I drove and thought the price was stupid and not worth it. I can be wrong. Also, MBC only comes with 18's I am told.











