Mercedes-AMG tire sizes

We cover 3 Mercedes-AMG models across 5 factory fitments, spanning model years 2014 to 2021. The size that turns up most often on a Mercedes-AMG is 255/35R19, followed by 285/30R19 and 235/35R19. Wheel diameters run from 19 to 20 inches, so the trim and wheel package matter as much as the model year.

Mercedes-AMG does not stamp an approval code on tires the way Porsche and BMW do, so any tire in the right size that meets the load index and speed rating on the door placard is a legitimate replacement. Pick on wet braking, tread life and price instead.

Pick your model below to see the size for every year and trim, what it costs from budget to premium, and which tires are worth buying in that size. If you already know your size, search by size instead, and if you are not sure where to find it, our guide on reading a tire size shows exactly where the placard sits.

Mercedes-AMG is Mercedes-Benz's in-house performance division, wholly owned since 1999 and now a brand in its own right on cars like the AMG GT and the 63-series models. In the United States it accounts for a meaningful share of Mercedes volume, and the AMG versions of the C-Class, E-Class and GLE sell in real numbers rather than as curiosities. AMG cars get their own engines, suspension calibration and, importantly for this page, their own tire approvals.

That is why we separate them from Mercedes-Benz here.

Tires on a Mercedes-AMG

AMG models use the Mercedes approval system but with their own code: MO is the standard Mercedes approval, MOE is the run-flat version, and MO1 is reserved for AMG. An MO1 tire is built for the higher loads and cornering forces of an AMG car and is calibrated with the car's suspension and electronic aids, so fitting a plain MO tire or an unmarked tire to an AMG is a step away from the specification the car was signed off on even when the size matches. AMG fitments are staggered as a rule: the 2015 to 2021 C63 runs 255/35R19 front and 285/30R19 rear, and the AMG GT 255/35R19 front and 295/30R20 rear with a larger rear wheel as well as a wider tire.

The CLA 35 and 45 run 235/35R19. Nothing rotates, rears wear roughly twice as fast as fronts, and the correct purchase is usually a rear pair. Everything is a summer tire from the factory, and AMG's winter recommendations typically drop a wheel size to get sidewall and a wider tire choice.

Because the sizes are specific and the volumes small, availability inside an MO1-marked size can be tight.

The models that matter

The C63 of 2015 to 2021 is the model most AMG tire orders are for, on 255/35R19 front and 285/30R19 rear. The AMG GT runs 255/35R19 front and 295/30R20 rear in base form. The CLA 35 and CLA 45 use 235/35R19.

Larger AMG SUVs share the Mercedes-Benz GLE and GLS fitments in wider, staggered variants.

What owners find out later

MO1 is not a higher grade of MO but a different approval for a different car, so the two are not interchangeable upward or downward. AMG's carbon ceramic brake option leaves very little room behind the spokes, which limits which winter wheels physically clear. None of these cars carries a full-size spare, and most carry none at all.

The 30-series rear sidewalls on a 19 inch wheel give almost no pothole protection on a car weighing close to 4,000 pounds, and bent rims are common enough that many owners insure the wheels separately.