Tires are between the vehicle and the road. When the temperature is lower than 7 ℃, BMW recommends that you replace a set of tires suitable for low temperature use, which can effectively improve driving safety and ensure the driving performance of the vehicle. This does not only refer to areas with ice and snow, even on normal dry and wet roads.

当气温低于7摄氏度时，夏季轮胎所采用的橡胶化合物会变硬，从而对附着力、转向和操控响应产生影响，使车辆无法发挥佳性能。它的花纹设计更无法在冰雪路面上提供足够的牵引力和稳定性。

When the temperature is lower than 7 ℃, the rubber compound used in summer tires will harden, which will affect the adhesion, steering and handling response, so that the vehicle cannot perform well. Its pattern design can not provide enough traction and stability on ice and snow roads.

BMW低温天气轮胎由耐寒的特殊橡胶化合物制成，即使在低温条件下也能保持其附着力，从而提供更高的牵引力和方向稳定性，有用缩短制动距离。这种特性应对薄冰路面、雪地、低于7摄氏度的干燥路面及湿滑路面更为适合。特别设计的纵向和横向肋条在接触到路面时会张开，提供出 色的附着力。不但如此，低温天气轮胎的特殊胎面还能更好地预防在大雨中行驶时遇水侧滑。

BMW low temperature weather tire is made of special cold resistant rubber compound, which can maintain its adhesion even under low temperature conditions, so as to provide higher traction and directional stability and effectively shorten the braking distance. This feature is more suitable for thin ice pavement, snow, dry pavement below 7 ℃ and wet pavement. Specially designed longitudinal and transverse ribs open when contacting the road surface to provide excellent adhesion. Moreover, the special tread of low-temperature weather tires can better prevent sideslip when driving in heavy rain.

BMW低温天气轮胎在侧面标有特定的雪花符号，同时带有BMW星号标识。仅带有M+S符号（泥雪地）并不足以说明轮胎是低温天气轮胎，有些非冬季轮胎上也有这个符号。带BMW星号的轮胎则表示该轮胎已经专门针对BMW的车型及其底盘（包括ABS、DSC等控制系统）进行了调校，所以也不会产生更大的噪音或抖动。需要注意的是，冬季轮胎也需要保持佳状态，当轮胎花纹深度小于4毫米时，它的肋条将不再具有佳的冬季性能，同样建议您更换新的低温天气轮胎，以确保行车和车辆性能。

BMW low temperature weather tires are marked with a specific snowflake symbol on the side and a BMW star sign. The M + s symbol (mud and snow) alone is not enough to indicate that the tire is a low-temperature weather tire, and this symbol is also available on some non winter tires. A tire with BMW asterisk indicates that the tire has been specially adjusted for BMW models and their chassis (including ABS, DSC and other control systems), so it will not produce more noise or jitter. It should be noted that winter tires also need to be in good condition. When the tread depth of the tire is less than 4mm, its ribs will no longer have good winter performance. It is also recommended that you replace new low-temperature weather tires to ensure driving safety and vehicle performance.