Audi Q7 Maintenance Costs. An Audi Q7 will cost about $12,489 for maintenance and repairs during its first 10 years of service. This beats the industry average for luxury SUV models by $3,225. There is also a 36.25% chance that a Q7 will require a major repair during that time. This is 3.31% better than similar vehicles in this segment.Bo2B6.