Mercedes-Benz C-Class W206 C300W RWD MY2025 US Standard wheel tire sizes
Buying tyres for the C 300: check the axle first
Applies to: 2025 US C 300 sedan RWD (C300W) / W206 and M254 engine family only. Do not apply to older W205, AWD 4MATIC, AMG or overseas versions. CarFactBook code combines platform and market/drivetrain; it is not a VIN or exact parts compatibility approval.
Why the front and rear entries are separate
This published US 2025 rear-drive C 300 reference is staggered: the rear tyre is wider than the front tyre. A search result saying only “18-inch C-Class tyre” omits the axle, aspect ratio and actual wheel option. Read all of those from the tyres and vehicle documentation before ordering.
Do not treat the equal rim diameter as permission to exchange front and rear assemblies. The specification is a factory reference, not a rotation procedure or proof that a wheel from a W205, AMG or 4MATIC fits this W206.
Size is not inflation pressure
The size string does not establish a safe pressure, load rating or replacement construction for the individual car. Use its tyre/loading placard and fitted equipment. A different optional wheel package needs its own documented sizes; this page keeps the published reference unchanged.
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At a glance
- Vehicle
- Mercedes-Benz C-Class W206 C300W RWD MY2025 US
- Standard wheel tire sizes
- 225/45 R18 front; 245/40 R18 rear
- Manufacturer source
- Mercedes-Benz USA
- Verified
2025 C 300 RWD 18-inch standard all-season Extended Mobility specification, not every optional wheel package.
Reference details
Source
Last verified by CarFactBook:
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