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.

當氣溫低于7攝氏度時，夏季輪胎所采用的橡膠化合物會變硬，從而對附著力、轉向和操控響應產生影響，使車輛無法發揮佳性能。它的花紋設計更無法在冰雪路面上提供足夠的牽引力和穩定性。

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低溫天氣輪胎由耐寒的特殊橡膠化合物制成，即使在低溫條件下也能保持其附著力，從而提供更高的牽引力和方向穩定性，有用縮短制動距離。這種特性應對薄冰路面、雪地、低于7攝氏度的干燥路面及濕滑路面更為適合。特別設計的縱向和橫向肋條在接觸到路面時會張開，提供出 色的附著力。不但如此，低溫天氣輪胎的特殊胎面還能更好地預防在大雨中行駛時遇水側滑。

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低溫天氣輪胎在側面標有特定的雪花符號，同時帶有BMW星號標識。僅帶有M+S符號（泥雪地）并不足以說明輪胎是低溫天氣輪胎，有些非冬季輪胎上也有這個符號。帶BMW星號的輪胎則表示該輪胎已經專門針對BMW的車型及其底盤（包括ABS、DSC等控制系統）進行了調校，所以也不會產生更大的噪音或抖動。需要注意的是，冬季輪胎也需要保持佳狀態，當輪胎花紋深度小于4毫米時，它的肋條將不再具有佳的冬季性能，同樣建議您更換新的低溫天氣輪胎，以確保行車安全和車輛性能。

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.