
Mercedes-Benz does not have a spare tire; it uses run-flat tires instead. Introduction to Run-Flat Tires: The RSC marking on the tire indicates that it is a run-flat tire. Run-flat tires consist of an outer tire, a standard inner tube, a spare inner tube, a steel rim, a gas generator (or air chamber), a pressure sensor, and a control unit. Take the 2021 Mercedes-Benz CLS300 Dynamic as an example: It is a mid-to-large-sized 4-door, 5-seater sedan equipped with a 9-speed automatic transmission and a 66L fuel tank. The 2021 CLS300 Dynamic uses a 2.0T inline 4-cylinder engine with a maximum torque of 370 Nm and a maximum power of 190 kW. Its dimensions are 4988mm in length, 1890mm in width, and 1424mm in height, with a wheelbase of 2939mm. The drivetrain is front-engine, rear-wheel drive.

As a long-time car enthusiast, I often research various Mercedes-Benz models. Regarding spare tires, Mercedes indeed has different configurations: classic models from earlier years like the older S-Class or E-Class almost always came with standard spare tires, but many newer cars like the GLC or A-Class have eliminated traditional spares. This is because Mercedes promotes run-flat tires, which allow you to drive at low speeds to a repair shop after a puncture without immediate replacement. I think this design is quite clever—it reduces trunk weight, improves fuel efficiency, and keeps the vehicle tidy. However, if you're driving long distances or to remote areas, not having a spare can still be worrisome; so I recommend checking the configuration manual when buying a car, as some SUVs like the GLE still offer optional spare tires. Overall, Mercedes has adapted to modern trends, but users need to evaluate based on their own needs. While spare tires are traditional, new technology is more convenient.

As a Mercedes-Benz owner myself, when I first bought my C-Class sedan, the first thing I did was check the trunk. I found there was no spare tire, but instead a small tire repair kit and an air pump. The manual stated these were for emergency repairs of minor leaks. In case of a complete tire failure, I'd have to rely on roadside assistance services. Mercedes-Benz probably did this to save space and weight, making the car drive more smoothly. However, I often drive on highways and always feel less secure without a spare tire. Once, when I had a flat tire, I managed to drive to a repair shop using that kit, which worked okay; but having a spare tire would have made the change quicker. Now, I regularly check my tire conditions, focusing on prevention. When buying a Mercedes, don't forget to ask the dealership - some off-road models like the G-Class still come with a spare tire.

From a technical perspective, why did Mercedes-Benz eliminate the spare tire? Primarily for vehicle weight reduction to enhance performance, as run-flat tires can support the car for a short distance after a puncture, avoiding the risks of roadside tire changes. This design also reduces trunk space occupation, improves aerodynamics, and makes the vehicle more efficient. However, in the absence of a spare tire, manufacturers provide tire repair kits for emergency manual repairs or inflation. Users need to understand this and ensure proper tire maintenance. Mercedes-Benz's decision is based on safety and environmental considerations, reducing unnecessary waste tire generation.


