What is the recommended tire pressure for a 2016 BMW X5?

The 2016 BMW X5 uses 36 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 2016 BMW X5 use?

The standard (base trim) tire size for the 2016 BMW X5 is 255/55R18. 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 2016 BMW X5 tire pressure to bar?

36 PSI = 2.5 bar (front) and 38 PSI = 2.6 bar (rear). In kPa: 248 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 2016 BMW X5?

The 2016 BMW X5 uses 36 PSI front and 38 PSI rear because the two axles carry different loads. The front axle carries roughly 52% of the vehicle's 2140 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.

What happens if the 2016 BMW X5 tires are underinflated?

Running 5+ PSI low on the BMW X5 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 255/55R18 mean on the 2016 BMW X5?

On the 2016 BMW X5, 255/55R18 breaks down as: 255 = section width in millimetres (10.04"), 55 = aspect ratio (the sidewall is 55% of the width, so 140.3 mm / 5.52" tall), R = radial construction, and 18 = the wheel diameter in inches.

What is the overall diameter of the 2016 BMW X5 tires?

The 255/55R18 tire on the 2016 BMW X5 has an overall diameter of about 29.04" (738 mm) and a rolling circumference of roughly 91.24", giving about 694 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.

2016 BMW X5 Tire Pressure

OEM cold pressure spec — verified for the 2014–2018 generation.

Recommended cold pressure

Front

36PSI

248 kPa

Rear

38PSI

262 kPa

Tire size

255/55R18

Curb weight

2,140 kg

Front axle

52%

2016 BMW X5 tire size: 255/55R18

The factory (base-trim) tire size for the 2016 BMW X5 is 255/55R18. 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.

Section width

255 mm

10.04"

Aspect ratio

55%

140.3 mm sidewall

Wheel diameter

18"

rim

Overall diameter: 29.04"; 738 mm
Sidewall height: 5.52"; 140.3 mm
Circumference: 91.24"; rolling
Revs / mile: 694; approx.

Staying within ±3% of the 29.04" overall diameter keeps your speedometer accurate. A larger diameter reads slower than your true speed; a smaller one reads faster.

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Recommended COLD pressure

23.2 / 22 PSI

Front (cold): 23.2 PSI(1.6 bar)
Rear (cold): 22 PSI(1.52 bar)
Front (hot est.): 25.5 PSI
Rear (hot est.): 24.2 PSI

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

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FAQ

2016 BMW X5

What is the recommended tire pressure for a 2016 BMW X5?: The 2016 BMW X5 uses 36 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 2016 BMW X5 use?: The standard (base trim) tire size for the 2016 BMW X5 is 255/55R18. 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 2016 BMW X5 tire pressure to bar?: 36 PSI = 2.5 bar (front) and 38 PSI = 2.6 bar (rear). In kPa: 248 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 2016 BMW X5?: The 2016 BMW X5 uses 36 PSI front and 38 PSI rear because the two axles carry different loads. The front axle carries roughly 52% of the vehicle's 2140 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.
What happens if the 2016 BMW X5 tires are underinflated?: Running 5+ PSI low on the BMW X5 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 255/55R18 mean on the 2016 BMW X5?: On the 2016 BMW X5, 255/55R18 breaks down as: 255 = section width in millimetres (10.04"), 55 = aspect ratio (the sidewall is 55% of the width, so 140.3 mm / 5.52" tall), R = radial construction, and 18 = the wheel diameter in inches.
What is the overall diameter of the 2016 BMW X5 tires?: The 255/55R18 tire on the 2016 BMW X5 has an overall diameter of about 29.04" (738 mm) and a rolling circumference of roughly 91.24", giving about 694 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.