2004 Audi A8 Quattro Tire Size
Your Audi was manufactured with different tire sizes. To determine the best tire size for your specific 2004 Audi A8 Quattro, we first need to determine your rim size. Please review the information below.
How to Determine Rim Size
Check your existing tires. Your Audi A8 Quattro's rim size is the number to the right of the R. In the example pictured here, the tire size fits 16-inch rims.
Rim Size Selection
Now that you know your rim size, make a selection below to filter your results.
17-Inch Rims
2004 Audi A8 Quattro
Your 2004 Audi A8 Quattro was manufactured with multiple tire sizes. Choose a tire size below to get a color-coded explanation of the differences. Then pick the best tire size for your 2004 Audi A8 Quattro.
Trim Options:
L 4.2
235/55R17 99
Simplified Size: 235-55-17
Simplified size is useful for shopping and buying tires.
The original tire size for your 2004 Audi A8 Quattro is 235/55R17 99H. A color-coded explanation of the 2004 Audi A8 Quattro's tire size is shown below.
235 | This number indicates that your tire has a width of 235 millimeters. | ||||||
17 | The tire size was designed to fit rims or wheels that are 17 inches in diameter. | ||||||
99 | This tire has a load index of 99, which means it's capable of carrying a load of 1705 pounds (775 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
55 | This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height works out to be 129 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||
This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |
Trim Options:
L 4.2
235/55R17 99
Simplified Size: 235-55-17
Simplified size is useful for shopping and buying tires.
The original tire size for your 2004 Audi A8 Quattro is 235/55R17 99Y. A color-coded explanation of the 2004 Audi A8 Quattro's tire size is shown below.
235 | This number indicates that your tire has a width of 235 millimeters. | ||||||
17 | The tire size was designed to fit rims or wheels that are 17 inches in diameter. | ||||||
99 | This tire has a load index of 99, which means it's capable of carrying a load of 1705 pounds (775 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
55 | This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height works out to be 129 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||
This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |
18-Inch Rims
2004 Audi A8 Quattro
Your 2004 Audi A8 Quattro was manufactured with multiple tire sizes. Choose a tire size below to get a color-coded explanation of the differences. Then pick the best tire size for your 2004 Audi A8 Quattro.
Trim Options:
L 4.2
255/45R18 99
Simplified Size: 255-45-18
Simplified size is useful for shopping and buying tires.
The original tire size for your 2004 Audi A8 Quattro is 255/45R18 99H. A color-coded explanation of the 2004 Audi A8 Quattro's tire size is shown below.
255 | This number indicates that your tire has a width of 255 millimeters. | ||||||
18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||
99 | This tire has a load index of 99, which means it's capable of carrying a load of 1705 pounds (775 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
45 | This number means that your tire has an aspect ratio of 45%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 45% of the width. In this case, the sidewall height works out to be 114 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||
This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |
Trim Options:
L 4.2
255/45R18 99
Simplified Size: 255-45-18
Simplified size is useful for shopping and buying tires.
The original tire size for your 2004 Audi A8 Quattro is 255/45R18 99Y. A color-coded explanation of the 2004 Audi A8 Quattro's tire size is shown below.
255 | This number indicates that your tire has a width of 255 millimeters. | ||||||
18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||
99 | This tire has a load index of 99, which means it's capable of carrying a load of 1705 pounds (775 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
45 | This number means that your tire has an aspect ratio of 45%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 45% of the width. In this case, the sidewall height works out to be 114 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||
This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |
19-Inch Rims
2004 Audi A8 Quattro
The original tire size for your 2004 Audi A8 Quattro is listed below. Tap on the box to view a color-coded explanation of your Audi A8 Quattro's' tire size.
Trim Options:
L 4.2
255/40R19/RF 100
Simplified Size: 255-40-19
Simplified size is useful for shopping and buying tires.
The original tire size for your 2004 Audi A8 Quattro is 255/40R19/RF 100Y. A color-coded explanation of the 2004 Audi A8 Quattro's tire size is shown below.
255 | This number indicates that your tire has a width of 255 millimeters. | ||||||
19 | The tire size was designed to fit rims or wheels that are 19 inches in diameter. | ||||||
RF | The mark of RF indicates that the tire is reinforced. This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load. | ||||||
100 | This tire has a load index of 100, which means it's capable of carrying a load of 1760 pounds (800 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
40 | This number means that your tire has an aspect ratio of 40%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 40% of the width. In this case, the sidewall height works out to be 102 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||
This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |