What is the tire model for the BMW 5 Series?

1 Answers
SanDylan
07/29/25 6:29pm
Different models of the BMW 5 Series use different tire specifications. One variant features the same tire size for both front and rear wheels, which is 245/45R18. Another variant has different tire sizes for the front and rear wheels: the front tires are 245/40R19, and the rear tires are 275/35R19. In these specifications, the first number represents the tire width; the second number indicates the aspect ratio, which is the percentage of the tire's section height to its width; the letter R stands for RADIAL, meaning it's a radial tire; and the third number denotes the rim diameter. Tire width is a factor that affects the vehicle's fuel consumption. Wider tires have a larger contact area with the ground, which increases friction between the tire and the road. This results in more energy loss as the vehicle's kinetic energy is converted into frictional heat, making wider tires more fuel-consuming over the same distance. However, there are two sides to every coin. While wider tires may increase fuel consumption, they also provide better grip, leading to improved vehicle stability. The aspect ratio is a key factor influencing the vehicle's responsiveness to road conditions. Vehicles with a lower aspect ratio have thinner tire walls and can withstand higher pressure, making them more sensitive to road conditions. This allows for quicker transmission of road signals to the driver, enhancing control, which is why they are commonly found in performance-oriented models. On the other hand, higher aspect ratios mean thicker tire walls, offering more cushioning but less road feel, especially during turns, making them more common in comfort-focused models. Additionally, off-road vehicles typically have higher aspect ratios to better handle rough and challenging terrains.
Was this review help?
5
0
Share
More Forum Discussions

What Causes Front Wheel Pulsation During Hard Braking?

Generally, brake pulsation may be related to the brake caliper, master cylinder, brake disc, brake pads, or flange plate. Here is relevant information: 1. Emergency braking: Emergency braking refers to simultaneously pressing both the brake pedal and clutch pedal (for manual transmission vehicles) during hard braking. If only the brake pedal is pressed, the braking force must overcome two factors: the vehicle's kinetic energy and the engine's traction force. 2. Specific effects: When braking hard, the ABS braking assist system and EPS electronic stability system will activate to maintain normal vehicle operation. Occasional hard braking mainly causes greater wear on brake friction pads and tires, along with slightly increased fuel consumption during restarting, while other damages are negligible.
8
0
Share

Is the Prado's spare tire full-size?

The Prado's spare tire is full-size, which means it is the same size as the regular wheels and tires. To remove the spare tire, follow these steps: open the trunk, lift the trunk floor mat to reveal the spare tire, then unscrew the fastening knob to release it. A spare tire serves as a backup in case of a flat or malfunctioning wheel, allowing for timely replacement and preventing the vehicle from being stranded. The Prado measures 4840mm in length, 1885mm in width, and 1890mm in height, with a wheelbase of 2790mm. Its engine delivers a maximum horsepower of 280Ps, a peak power output of 206kW, and a maximum torque of 365Nm.
1
4
Share

Can I Turn on the Heater After Just Applying the Front Windshield Film?

You can turn on the heater after just applying the front windshield film, but you should not move the glass or wash the filmed glass with water. Precautions after car film installation: 1. Do not move the glass within 3 days after installation; 2. Do not wash the filmed glass with water within 15 days after installation; 3. Do not use suction cups or adhesives to hang or fix any items on the filmed glass, and avoid sticking adhesive decorations on the protective film. Functions of car body film: 1. Protects the original car paint without damaging it; 2. Resists chemical corrosion and damage from acid rain, insect remains, bird droppings, resin, etc.; 3. Blocks sunlight and high temperatures, reducing natural hazards to the car.
16
4
Share

How to deactivate the Epica's anti-theft system?

To deactivate the Epica's anti-theft system, open the door. After opening, the anti-theft alarm will sound continuously. Wait for the alarm to stop, then press the lock button on the key to lock the door. After locking, press the unlock button to open the door, and then insert the key. The anti-theft system primarily utilizes existing telephone networks or GSM wireless mobile networks to connect with the owner's phone or mobile device via wired or wireless means, enabling remote anti-theft functionality as an electronic product. The Epica measures 4808mm in length, 1807mm in width, and 1450mm in height, with a wheelbase of 2700mm. Its engine delivers a maximum horsepower of 143Ps, a maximum power output of 105kw, and a maximum torque of 175nm.
9
1
Share

What to Do When the Car's Chassis Makes a Loud Clunking Sound?

The car's chassis made a loud clunking sound. You should go to a repair shop or use a lift to raise the car and check for any damage on the chassis. The chassis refers to the combination of the transmission system, running system, steering system, and braking system of a car. It supports and installs the car engine and its various components and assemblies, forming the overall shape of the car, bearing the engine power, and ensuring normal driving. The functions of the car chassis include: 1. Effectively protecting the chassis from impacts by road gravel and preventing minor scraping; 2. Preventing corrosion of the chassis iron plate by acids, alkalis, and salts; 3. Preventing loosening of chassis screws, etc.
20
1
Share

What is the M20e engine?

M20e is a naturally aspirated engine. Automobile engine: The automobile engine is the device that provides power for the car, serving as the heart of the vehicle, determining its power, fuel efficiency, stability, and environmental friendliness. Depending on the power source, automobile engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrids, among others. Working principle of a naturally aspirated engine: A naturally aspirated engine does not have a supercharger. It means that air simply passes through the air filter—throttle (commonly known as the "gas pedal")—intake manifold—to reach the "cylinder," with gasoline being directly injected into the intake manifold through the fuel injector.
3
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.