2025 Mercedes-Benz E450 — 4MATIC Sedan
The 2025 Mercedes-Benz E450 4MATIC Sedan shipped with 7 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
225/55R18
| Section width | 225 mm |
|---|---|
| Aspect ratio (sidewall height) | 55% (123.8 mm) |
| Rim diameter | 18" |
| Overall tire diameter | ~27.7" |
| Revolutions per mile | ~727 |
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245/45R19 (Front)
| Section width | 245 mm |
|---|---|
| Aspect ratio (sidewall height) | 45% (110.3 mm) |
| Rim diameter | 19" |
| Overall tire diameter | ~27.7" |
| Revolutions per mile | ~729 |
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275/40R19 (Rear)
| Section width | 275 mm |
|---|---|
| Aspect ratio (sidewall height) | 40% (110 mm) |
| Rim diameter | 19" |
| Overall tire diameter | ~27.7" |
| Revolutions per mile | ~729 |
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245/40R20 (Front)
| Section width | 245 mm |
|---|---|
| Aspect ratio (sidewall height) | 40% (98 mm) |
| Rim diameter | 20" |
| Overall tire diameter | ~27.7" |
| Revolutions per mile | ~728 |
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275/35R20 (Rear)
| Section width | 275 mm |
|---|---|
| Aspect ratio (sidewall height) | 35% (96.3 mm) |
| Rim diameter | 20" |
| Overall tire diameter | ~27.6" |
| Revolutions per mile | ~731 |
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245/35R21 (Front)
| Section width | 245 mm |
|---|---|
| Aspect ratio (sidewall height) | 35% (85.8 mm) |
| Rim diameter | 21" |
| Overall tire diameter | ~27.8" |
| Revolutions per mile | ~727 |
Compare prices at:
275/30R21 (Rear)
| Section width | 275 mm |
|---|---|
| Aspect ratio (sidewall height) | 30% (82.5 mm) |
| Rim diameter | 21" |
| Overall tire diameter | ~27.5" |
| Revolutions per mile | ~733 |
Compare prices at:
What this size means for your Mercedes-Benz E450
On the 2025 Mercedes-Benz E450 4MATIC Sedan, the factory 225/55R18 measures about 27.7″ in overall diameter with a 123.8 mm (4.9″) sidewall, and completes roughly 727 revolutions per mile. Its 55-series aspect ratio gives a balanced everyday-passenger profile — enough sidewall to soak up road shock while keeping steering response crisp. In tire terms it is a passenger (P-metric / Euro-metric) size.
The 225/55R18 and 245/45R19 roll within 0″ (0%) of each other in overall diameter, so they are interchangeable from a speedometer standpoint — the second size is an optional wheel package rather than a different rolling size.
Other 2025 Mercedes-Benz E450 trims
- 4MATIC All-Terrain Wagon 255/45R19 / 255/40R20 / 255/40R20 (Front) / 285/35R20 (Rear)
Mercedes-Benz E450 tire sizes by year
- 2026 Mercedes-Benz E450 255/45R19 / 255/40R20 / 255/40R20 (Front) / 285/35R20 (Rear)
- 2024 Mercedes-Benz E450 255/45R19 / 255/40R20 / 255/40R20 (Front) / 285/35R20 (Rear)
- 2023 Mercedes-Benz E450 245/45R19 / 245/40R20
- 2022 Mercedes-Benz E450 245/45R19 / 245/40R20
- 2021 Mercedes-Benz E450 245/45R18 / 245/40R19 / 245/45R18 (Front) / 275/40R18 (Rear) / 245/40R19 (Front) / 275/35R19 (Rear)
- 2020 Mercedes-Benz E450 245/45R18 / 245/40R19
- 2019 Mercedes-Benz E450 245/45R18 / 245/40R19
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.