Tire Size Calculator – Audi Q5
Here’s a detailed table with the tire size specifications and key information for the Audi Q5, covering different trims and options. This table provides essential data such as tire sizes, wheel sizes, bolt patterns, and other useful details for Audi Q5 owners or those looking to understand more about their tire options.
Audi Q5 Tire and Wheel Size Specifications:
| Trim/Version | Front Tire Size | Rear Tire Size | Wheel Size (inches) | Bolt Pattern | Tire Type | Load Index | Speed Rating |
|---|---|---|---|---|---|---|---|
| Audi Q5 40 TFSI | 235/60R18 | 235/60R18 | 18×8 | 5×112 | All-Season Radial | 103 | H (130 mph) |
| Audi Q5 45 TFSI | 235/55R19 | 235/55R19 | 19×8 | 5×112 | All-Season Radial | 101 | V (149 mph) |
| Audi Q5 S line | 255/45R20 | 255/45R20 | 20×8.5 | 5×112 | All-Season or Summer Performance | 105 | V (149 mph) |
| Audi Q5 Plug-in Hybrid | 235/60R18 | 235/60R18 | 18×8 | 5×112 | All-Season Radial | 103 | H (130 mph) |
| Audi SQ5 | 255/40R21 | 255/40R21 | 21×8.5 | 5×112 | Summer Performance | 102 | Y (186 mph) |
Key Tire and Wheel Information for Audi Q5:
- Bolt Pattern: The Audi Q5 uses a 5×112 mm bolt pattern (5 lugs, 112 mm diameter). This is critical information when selecting aftermarket wheels or replacements.
- Tire Pressure: The recommended tire pressure for the Audi Q5 varies depending on the model and tire size but is generally around 38 PSI for normal driving conditions. Always refer to the door placard or owner’s manual for the exact specification for your vehicle.
- Tire Rotation: Audi recommends rotating the tires every 5,000 to 7,500 miles to ensure even wear and prolong the life of the tires.
- Winter Tires: If you live in a region with severe winter conditions, switching to winter tires can enhance safety and handling. Winter tires are available in 18-inch or 19-inch options for the Audi Q5, depending on the trim level.
Breakdown of Tire Size Codes:
- 235/60R18 (Standard on Audi Q5 40 TFSI and Plug-in Hybrid):
- 235: The tire width in millimeters.
- 60: The aspect ratio, meaning the sidewall height is 60% of the tire width.
- R18: A radial tire designed for 18-inch wheels.
- 255/40R21 (Audi SQ5):
- 255: The tire width in millimeters.
- 40: The aspect ratio, meaning the sidewall height is 40% of the tire width.
- R21: A radial tire designed for 21-inch wheels.
Load Index and Speed Rating:
- Load Index: The load index indicates how much weight the tire can support. For example:
- A load index of 103 means the tire can support up to 1,929 lbs.
- A load index of 105 means the tire can support up to 2,039 lbs.
- Speed Rating: The speed rating defines the maximum speed at which a tire can perform safely:
- H: Rated for speeds up to 130 mph.
- V: Rated for speeds up to 149 mph.
- Y: Rated for speeds up to 186 mph (common on the high-performance Audi SQ5).
Audi Q5 Wheel Sizes:
- 18-inch Wheels:
- Standard on the Audi Q5 40 TFSI and the Plug-in Hybrid models. These wheels offer a comfortable ride, better durability, and lower tire replacement costs compared to larger wheels.
- 19-inch Wheels:
- Common on the Audi Q5 45 TFSI. These wheels balance comfort and handling performance, providing a smooth ride with slightly better cornering capability than the 18-inch options.
- 20-inch and 21-inch Wheels:
- Found on higher-end trims like the Audi Q5 S line and the Audi SQ5. These larger wheels provide sharper handling and a sportier appearance but may result in a slightly firmer ride. They are paired with low-profile tires that offer increased performance in dry conditions.
General Recommendations:
- All-Season Tires: These are the standard tires on most Audi Q5 trims. They provide balanced performance in various weather conditions, including rain and light snow. All-season tires are ideal for everyday driving in moderate climates.
- Summer Performance Tires: Available on the Audi SQ5 and S line trims, these tires offer superior grip and handling in dry conditions. They are not suitable for winter or icy conditions and should be replaced with winter tires in colder climates.
- Winter Tires: For cold climates, Audi recommends installing winter tires during the colder months to ensure better traction and control on snow and ice. Winter tires are designed with special tread patterns and rubber compounds to remain pliable in low temperatures.
Additional Tire Information:
- UTQG Ratings (Uniform Tire Quality Grading): Check the UTQG rating on the sidewall of your tires to understand their treadwear, traction, and temperature grades:
- Treadwear: Higher numbers indicate longer-lasting tires.
- Traction: Grades like AA indicate the highest level of grip on wet surfaces.
- Temperature Resistance: Indicates the tire’s ability to resist heat buildup at high speeds.
- Tire Pressure Monitoring System (TPMS): All Audi Q5 models are equipped with a TPMS that alerts drivers when tire pressure is low. Proper tire pressure ensures optimal handling, fuel efficiency, and safety.
Tire Replacement and Aftermarket Wheel Options:
- When selecting new tires or aftermarket wheels for your Audi Q5, make sure they meet the load index and speed rating requirements for your vehicle.
- Ensure the wheels match the 5×112 mm bolt pattern and have the correct offset to avoid any issues with fitment or handling performance.
This table and the accompanying details provide essential information for Audi Q5 owners, helping them select the right tires and understand key aspects of tire and wheel maintenance for optimal performance and safety.