Why does the Mercedes-Benz E300 display 'Please correct tire pressure'?
2 Answers
The Mercedes-Benz E300 displaying 'Please correct tire pressure' is a warning of abnormal tire pressure, indicating that the vehicle's wheels are experiencing low tire pressure. With prolonged use, tire pressure may decrease. In this case, simply replenish the tire pressure to the standard value and then reset the tire pressure through the vehicle's multimedia system. The ground braking force of a vehicle primarily depends on the braking force of the brakes but is also limited by the ground adhesion conditions. Therefore, only when the vehicle has sufficient braking force and the ground can provide high adhesion can sufficient ground braking force be obtained. By appropriately reducing tire pressure, the tire deformation can be increased, enlarging the contact area between the tire and the ground, thereby improving adhesion and ensuring the vehicle has good braking performance. The friction between the tire and the ground increases exponentially, causing the tire temperature to rise sharply, the tire to soften, and its strength to drop rapidly. If the vehicle is driven at high speed, this may lead to a tire blowout.
When driving my Mercedes E300, I also encountered the 'Please correct tire pressure' warning. This usually happens due to low or uneven tire pressure, possibly caused by a slow leak in one tire or uneven expansion from temperature changes. For example, during winter, my tire pressure drops quickly, triggering the system alert. Additionally, if the sensor is low on battery or damaged, it may give false warnings. Correcting it means letting the system relearn the current tire pressure state—there’s usually a reset option in the dashboard menu. I always address it immediately because improper pressure can make the car feel unstable and increase accident risks. Ignoring it long-term also wears out tires and wastes fuel. I recommend first checking all tire pressures with a gauge to ensure they’re within the recommended range, then resetting the system—the warning should disappear within minutes.
