Mercedes-Benz C-Class tire size
Original tire sizes for the Mercedes-Benz C-Class, model years 2008 through 2021. Trim levels and wheel packages change the size within the same year, so confirm on the door-jamb sticker before ordering.
Check before you order. The surest answer is the tires on the car right now: the size is molded into the sidewall. The placard inside the driver's door tells you what the factory fitted, which can differ from what a previous owner put on. Our guide on reading a tire size shows exactly where to look.
Size by year and trim
| Model years | Trim or package | Tire size | From |
|---|---|---|---|
| 2015-2021 | AMG Line rear | 245/40R18 | $95 |
| 2008-2014 | Base | 225/45R17 | $82 |
Tire size by model year
| Model year | Tire size | Trim or package | From |
|---|---|---|---|
| 2021 Mercedes-Benz C-Class | 245/40R18 | AMG Line rear | $95 |
| 2020 Mercedes-Benz C-Class | 245/40R18 | AMG Line rear | $95 |
| 2019 Mercedes-Benz C-Class | 245/40R18 | AMG Line rear | $95 |
| 2018 Mercedes-Benz C-Class | 245/40R18 | AMG Line rear | $95 |
| 2017 Mercedes-Benz C-Class | 245/40R18 | AMG Line rear | $95 |
| 2016 Mercedes-Benz C-Class | 245/40R18 | AMG Line rear | $95 |
| 2015 Mercedes-Benz C-Class | 245/40R18 | AMG Line rear | $95 |
| 2014 Mercedes-Benz C-Class | 225/45R17 | Base | $82 |
| 2013 Mercedes-Benz C-Class | 225/45R17 | Base | $82 |
| 2012 Mercedes-Benz C-Class | 225/45R17 | Base | $82 |
| 2011 Mercedes-Benz C-Class | 225/45R17 | Base | $82 |
| 2010 Mercedes-Benz C-Class | 225/45R17 | Base | $82 |
| 2009 Mercedes-Benz C-Class | 225/45R17 | Base | $82 |
| 2008 Mercedes-Benz C-Class | 225/45R17 | Base | $82 |
What Mercedes-Benz approves
MO is the Mercedes approval, MOE is the run-flat version and MO1 is reserved for AMG models.
Mercedes tunes the tire to the car's suspension and electronic aids, so an MO tire on a Mercedes usually rides closer to how the car left the factory. MOE tires have a reinforced sidewall and only belong on a car built for them.
Brands that carry the approval
Written on the sidewall as: Continental ProContact (MO), Michelin Pilot Sport 4 (MO1).
The drawing carries the sizes we list for this car, so you know what you are looking for. The placard on the car is still the final word, and it is the only place that gives the cold pressures: the number molded into the sidewall is the maximum the tire can hold, not what your car wants.
What those tires cost
Mercedes-Benz C-Class tires: common questions
What size tires does a Mercedes-Benz C-Class take?
The most common original size is 245/40R18. Other model years and trims use different sizes, so check the list on this page and confirm against the sticker inside your driver's door.
Can I fit a different size on my Mercedes-Benz C-Class?
You can, within limits: the overall diameter should stay within about 3 percent of the original, and the load index and speed rating must meet or exceed the door placard. Anything further changes your speedometer reading and can rub at full lock.
Where is the tire size on a Mercedes-Benz C-Class?
Open the driver's door and look at the white and yellow placard on the door jamb or the B-pillar. The same size is also molded into the sidewall of the tires currently on the car, unless someone changed them.
What size tires does a 2021 Mercedes-Benz C-Class take?
The 2021 Mercedes-Benz C-Class came from the factory on 245/40R18. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.
What size tires does a 2020 Mercedes-Benz C-Class take?
The 2020 Mercedes-Benz C-Class came from the factory on 245/40R18. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.
What size tires does a 2019 Mercedes-Benz C-Class take?
The 2019 Mercedes-Benz C-Class came from the factory on 245/40R18. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.