116 problems have been reported for the 2004 Volvo XC70. The following chart shows the 20 most common problems for 2004 Volvo XC70. The number one most common problem is related to the vehicle's fuel system, other with 26 problems. The second most common problem is related to the vehicle's suspension (17 problems).
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2004 Volvo XC70 in the United States are 24,497 units [1]. If the total number of problems reported by Volvo XC70 owners in the last 21 years is 116, and the age of the vehicle is 21, the PPMY index can then be calculated as
PPMY Index = 116 / 24,497 / 21 * 1000 = 0.23.
For more information, refer to this page: A study of reliability comparison across Volvo XC70 model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2004 Volvo XC70 in 2004.
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When making the decision between buying a new or used Volvo XC70, the following table can be used to compare the 2004 Volvo XC70 with the Volvo XC70 from other model years. Note that the number of problems reported for the 2004 XC70 is 116 while the average number of problems reported for the 16 model years of the Volvo XC70 is 31.