21” tires and wheels
I will also complain to Mercedes customer service like you did. However, did you ever take your car to a Mercedes dealership to document the problem? Please let me know. Thanks
replaced
I ended up dumping the s-class this week getting a CLE 53 AMG. Completely different car, but hey it works and I could actually drive it in peace to vegas, San francisco, San diego, etc. it was too paranoid and had a lot of anxiety to drive that s580 anywhere farther than 20 mi from my house. Terrible feeling.
I will also complain to Mercedes customer service like you did. However, did you ever take your car to a Mercedes dealership to document the problem? Please let me know. Thanks
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I would really appreciate it if you could provide me some additional clarification on this.
Thanks.
Danny
dannyvafa@gmail.com
818-793-7846
The Best of Mercedes & AMG
I too, have installed those tires (S63 AMG OE tires) on my aftermarket 21" wheels.
I hope they last without major issues.
I guess it was easier for MB to simply discontinue the 21" wheel options (they were removed since MY25 btw) than sourcing the beefier tires options for the regular S-class.
The MP4S option for the S63 is significantly noisier than the stock touring tires on the S-class and thus not a great replacement.
Please correct me but I'm guessing the stock 21" tires on the pre-'25 were comparable to other tires (20", 19") in terms of road noise?
This car would probably be much better with 20-in rims and tires. I was scared to drive more than 20 mi from my house. Enjoy it.
This car would probably be much better with 20-in rims and tires. I was scared to drive more than 20 mi from my house. Enjoy it.
No... I have the 21" with the OEM S63 MP4S setup.
Last edited by Chop77; Oct 31, 2025 at 02:55 PM.

alloywheelsdirect.net

https://mbworld.org/forums/s-class-w...m_content=post

https://mbworld.org/forums/s-class-w...m_content=post

Current tire size on 21 inch rims::
Front: 255/35R21Rear: 285/35R21
Front: Tire:255/40 R20Wheel: 20 x 9.0JIdeal Offset (ET): ET +34Acceptable Range: ET +30 to +38 RearTire: 285/40 R20Wheel: 20 x 10.0J9.0J × 20Ideal Offset (ET): ET +48Acceptable Range: ET +44 to +52
Looking at the following rims
In my Cart
Please comment, positive and negative. Worried about adverse affects on fitment, clearance or performance.
Thank you to all the experts.
Michelin Pilot Sport 4 S
255/40-ZR21 Fronts
285/35-ZR21 Rears
Thank you Chop 77 !!!
255/40-21 Fronts
285/35-21 Rears
Last edited by AztecOwl; Feb 2, 2026 at 12:50 PM.











