Volvo XC70 owners have reported a total of 418 problems for their cars built in the
16 model years
listed in the chart below.
The chart shows the number of problems reported across all service years for each given model year of the Volvo XC70.
The 2004 Volvo XC70 cars have the most problems reported (101 problems).

Table 1. Total number of problems by model year for Volvo XC70

The following chart shows the 23 most common problems for Volvo XC70 cars.
The number one most common problem is related to the vehicle's power train
(66 problems).
The second most common problem is related to the vehicle's suspension (43 problems).

Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Volvo XC70 of an older model year to newer model years
since older vehicles have been in service longer and thus are expected to have more problems.
In order to compare the reliability across XC70 model years, we use the PPMY index which is defined as the
problems reported per thousand vehicles per Year.
A smaller PPMY index indicates greater reliability of the given model year cars.

PPMY = P / S / Y * 1000,

where P = total problems reported during the life of a Volvo XC70 model year;
S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).

The results are shown in Table 3.

Table 3. Use PPMY Index to Compare Reliability Across XC70 Model Years

Another way to measure the reliability across the model years of the Volvo XC70
is to use the total number of problems reported during the vehicle's first year in service, as shown in the Table 4.

Table 4. Number of problems in vehicle's; first service year