286 problems have been reported for the 1999 Volvo S80. The following chart shows the 20 most common problems for 1999 Volvo S80. The number one most common problem is related to the vehicle's vehicle speed control with 53 problems. The second most common problem is related to the vehicle's engine and engine cooling (38 problems).
The following chart shows the number of problems reported during each of the service years since the debut of the 1999 Volvo S80 in 1999.
| Service Year | Number of Problems |
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| 2022 | |
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| 1999 |
When making the decision between buying a new or used Volvo S80, the following table can be used to compare the 1999 Volvo S80 with the Volvo S80 from other model years. Note that the number of problems reported for the 1999 S80 is 286 while the average number of problems reported for the 18 model years of the Volvo S80 is 69.