2017 Mercedes-Benz E-Class Tire Pressure
OEM cold pressure spec — verified for the 2017–2024 generation.
Rear PSI is often higher due to staggered fitment on RWD models
Always verify against the sticker inside your driver's door — different trims, option packages, or a spare tire may have different specifications.
2017 Mercedes-Benz E-Class tire size: 245/45R18
The factory (base-trim) tire size for the 2017 Mercedes-Benz E-Class is 245/45R18. Here is what that size measures out to in the real world — useful when comparing replacement tires or checking whether a different size will fit.
- Overall diameter
- 26.68"
- 678 mm
- Sidewall height
- 4.34"
- 110.3 mm
- Circumference
- 83.82"
- rolling
- Revs / mile
- 756
- approx.
Staying within ±3% of the 26.68" overall diameter keeps your speedometer accurate. A larger diameter reads slower than your true speed; a smaller one reads faster.
Tune for your load & driving style
- Front (cold)
- 26.6 PSI(1.83 bar)
- Rear (cold)
- 24.5 PSI(1.69 bar)
- Front (hot est.)
- 29.2 PSI
- Rear (hot est.)
- 27 PSI
Street setting: balanced for comfort, wear, and fuel economy. Always measure cold.
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2017 Mercedes-Benz E-Class
- What is the recommended tire pressure for a 2017 Mercedes-Benz E-Class?
- The 2017 Mercedes-Benz E-Class uses 38 PSI cold on the front axle and 42 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.
- What tire size does the 2017 Mercedes-Benz E-Class use?
- The standard (base trim) tire size for the 2017 Mercedes-Benz E-Class is 245/45R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.
- How do I convert the 2017 Mercedes-Benz E-Class tire pressure to bar?
- 38 PSI = 2.6 bar (front) and 42 PSI = 2.9 bar (rear). In kPa: 262 kPa front and 290 kPa rear. Multiply PSI × 0.0689 to convert to bar.
- Why are the front and rear tire pressures different on the 2017 Mercedes-Benz E-Class?
- The 2017 Mercedes-Benz E-Class uses 38 PSI front and 42 PSI rear because the two axles carry different loads. The front axle carries roughly 52% of the vehicle's 1700 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.
- What happens if the 2017 Mercedes-Benz E-Class tires are underinflated?
- Running 5+ PSI low on the Mercedes-Benz E-Class causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.
- What do the numbers in 245/45R18 mean on the 2017 Mercedes-Benz E-Class?
- On the 2017 Mercedes-Benz E-Class, 245/45R18 breaks down as: 245 = section width in millimetres (9.65"), 45 = aspect ratio (the sidewall is 45% of the width, so 110.3 mm / 4.34" tall), R = radial construction, and 18 = the wheel diameter in inches.
- What is the overall diameter of the 2017 Mercedes-Benz E-Class tires?
- The 245/45R18 tire on the 2017 Mercedes-Benz E-Class has an overall diameter of about 26.68" (678 mm) and a rolling circumference of roughly 83.82", giving about 756 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.