How to reset tire pressure on BMW 320?
1 Answers
The tire pressure reset button is located on the center console. Use the up and down selection buttons on the light switch to navigate to the tire pressure loss display icon, then briefly press the BC button (located on the left side of the light switch). Next, press and hold the BC button until a checkmark appears at the bottom of the instrument cluster. Drive at a constant speed for 3 kilometers to complete the initialization. The reset can only be performed when the ignition is in position 2 or during idle. Tire pressure should not be too high or too low. If the pressure is too high, the contact area between the tire and the ground decreases, increasing the pressure on the tire's contact patch and accelerating wear, though it may improve fuel efficiency. However, grip is reduced, especially during emergency braking, leading to longer stopping distances. If the pressure is too low, the contact area between the tire and the ground increases, resulting in higher friction and better grip, but it also increases fuel consumption. Additionally, severe sidewall deformation can reduce the tire's lifespan. Tire pressure is not a fixed value. In summer, when temperatures are high, the pressure should be slightly reduced, typically between 2.2—2.4 bar. In spring, at around 20°C, the pressure should generally be maintained between 2.3-2.5 bar.
