2003 Audi A6
Vehicle Specs & Maintenance Data
The 2003 Audi A6 maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your Audi A6.
For oil changes, the 2003 Audi A6 takes 5W-40 Full Synthetic motor oil with a capacity of 6.9 quarts. Brake fluid type is DOT 4, the recommended coolant is G13 (Purple, phosphate-free), and transmission fluid is VW G 055 025 A2. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.
When mounting wheels on the Audi A6, torque the lug nuts to 89 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.
Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.
The 2003 Audi A6 uses 5W-40 Full Synthetic motor oil (6.9 qt capacity), requires lug nuts torqued to 89 ft-lbs, takes DOT 4 brake fluid.
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