What is the recommended tire pressure for a 2017 Mercedes-Benz C-Class?

The 2017 Mercedes-Benz C-Class uses 35 PSI cold on the front axle and 38 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 C-Class use?

The standard (base trim) tire size for the 2017 Mercedes-Benz C-Class is 225/45R17. 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 C-Class tire pressure to bar?

35 PSI = 2.4 bar (front) and 38 PSI = 2.6 bar (rear). In kPa: 241 kPa front and 262 kPa rear. Multiply PSI × 0.0689 to convert to bar.

Why are the front and rear tire pressures different on the 2017 Mercedes-Benz C-Class?

The 2017 Mercedes-Benz C-Class uses 35 PSI front and 38 PSI rear because the two axles carry different loads. The front axle carries roughly 51% of the vehicle's 1495 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.

What happens if the 2017 Mercedes-Benz C-Class tires are underinflated?

Running 5+ PSI low on the Mercedes-Benz C-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.

2017 Mercedes-Benz C-Class Tire Pressure

OEM cold pressure spec — verified for the 2015–2021 generation

Recommended cold pressure (PSI)

Front

2.4 bar · 241 kPa

Rear

2.6 bar · 262 kPa

Tire size

225/45R17

Curb weight

1,495 kg

Front axle load

51%

Customize for your load & driving style

Pre-filled with Mercedes-Benz C-Class specs. Adjust weight or style below.

Recommended COLD pressure

29 / 27.9 PSI

Front (cold): 29 PSI(2 bar)
Rear (cold): 27.9 PSI(1.92 bar)
Front (hot est.): 31.9 PSI
Rear (hot est.): 30.7 PSI

Street setting: balanced for comfort, wear, and fuel economy. Always measure cold.

Other Mercedes-Benz C-Class years

2020 C-Class 2019 C-Class 2018 C-Class 2016 C-Class 2015 C-Class All years →

FAQ — 2017 Mercedes-Benz C-Class

What is the recommended tire pressure for a 2017 Mercedes-Benz C-Class?: The 2017 Mercedes-Benz C-Class uses 35 PSI cold on the front axle and 38 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 C-Class use?: The standard (base trim) tire size for the 2017 Mercedes-Benz C-Class is 225/45R17. 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 C-Class tire pressure to bar?: 35 PSI = 2.4 bar (front) and 38 PSI = 2.6 bar (rear). In kPa: 241 kPa front and 262 kPa rear. Multiply PSI × 0.0689 to convert to bar.
Why are the front and rear tire pressures different on the 2017 Mercedes-Benz C-Class?: The 2017 Mercedes-Benz C-Class uses 35 PSI front and 38 PSI rear because the two axles carry different loads. The front axle carries roughly 51% of the vehicle's 1495 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.
What happens if the 2017 Mercedes-Benz C-Class tires are underinflated?: Running 5+ PSI low on the Mercedes-Benz C-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.