
The front and rear tires of the Mercedes-Benz E300 have the same specifications, with the tire model being 245/45R18. The tire brand is Bridgestone. Here, 245 indicates the tire section width of 245 millimeters, 45 represents the aspect ratio percentage (meaning the tire section height is 40% of the width), R stands for radial tire, and 18 denotes the rim diameter of 18 inches. Tire maintenance methods include: regularly checking tire pressure; periodically inspecting tires for bulges, cracks, cuts, punctures, or abnormal wear; removing foreign objects like stones, metal pieces, or nails from the tire treads; and performing wheel alignment or tire balancing. In addition to the aforementioned section width, aspect ratio, and rim diameter, there are two other important parameters marked on tires: the load index and speed rating. The load index refers to the maximum weight a tire can bear under normal inflation conditions, with each index corresponding to a specific load capacity. The speed rating indicates the maximum speed at which the tire can carry a specified load under defined conditions, represented by a letter code.

I've been driving a Mercedes-Benz E300 for several years. The original tires are usually Continental or Michelin summer tires, with sizes like 235/45 R18, which are quite comfortable and not too noisy for daily driving. When changing tires, I considered more economical options, but the original tires wear slowly and can last up to 5 years without issues. The E300 has a strong sense of luxury, and tire choice significantly affects the ride quality. Once, I switched to the wrong brand, and the noise was unbearable. I recommend regularly checking tire pressure; otherwise, fuel consumption will increase. Tire specifications might vary for different model years; for example, newer models might use 225/50 tires for better fuel efficiency. Also, if you mostly drive in the city, these standard tires are sufficient, but be cautious in winter when roads are slippery—consider using snow chains for added safety. Overall, the original tires strike a good balance between comfort and cost, making them worth sticking with.

As someone who frequently drives on highways, the original E300 tires like Pirelli P Zero perform exceptionally well, with strong grip that makes cornering feel like the car is glued to the road. The acceleration response is quick, but driving on wet surfaces can be a bit slippery, so upgrading to sport tires provides more stability. Tire size is crucial—19 inches or larger improves handling, but switching to bigger rims slightly increases fuel consumption. From my personal experience, neglecting tire maintenance accelerates tread wear and affects driving performance. Once, uneven tire pressure during a long trip caused noticeable wobbling. A friend who drives the same car also emphasizes seasonal tire changes, such as switching to wet-specific tires during rainy seasons to reduce skidding, which can extend tire lifespan. The E300, as a sports sedan, comes with well-designed tire configurations, and regular tire rotation is key to preventing uneven wear.

My focus is on safety. The E300 tires, such as Bridgestone, feature special anti-slip designs with high wet grip, ensuring stability even in heavy rain. When the tread depth falls below 3mm, the risk of skidding increases, so timely replacement is necessary. The factory-installed tire pressure monitoring system and alert system help with early warnings. Tire selection affects braking distance, so I always use professional winter tires for my E300, especially in snowy conditions, to ensure safety. The standard size is 225/55, but it's important to ensure rim compatibility to avoid accidents. Regular inspections and maintenance can extend tire lifespan.


