
5 Series tires should be replaced after 5 to 6 years of use or when they have been driven for 60,000 kilometers. Below are the tire specifications for the BMW 5 Series and methods to determine whether tires need replacement: Tire size specifications: 245/45/R18. Methods to determine whether tires need replacement: If the tires show signs of aging (for example: numerous small cracks on the tread groove base or sidewall that are close to damaging the tire body), the tire should be replaced immediately, regardless of its usage time or wear level. If the remaining groove depth of the tire tread reaches or falls below 1.6 millimeters (there are indicator marks in the longitudinal straight grooves of the tire tread indicating this depth), the tire must be replaced because its drainage capacity is significantly reduced, making driving on wet surfaces more dangerous.


