Volvo S70 - Problems, Statistics, and Analysis

Volvo S70 owners have reported a total of 768 problems for their cars built in the 5 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 S70. The 1998 Volvo S70 cars have the most problems reported (312 problems).

Table 1. Total number of problems by model year for Volvo S70

Model Year Number of Problems
  2002 S70
3
  2000 S70
191
  1999 S70
258
  1998 S70
312
  1997 S70
4

  Common problems of Volvo S70

The following chart shows the 24 most common problems for Volvo S70 cars. The number one most common problem is related to the vehicle's vehicle speed control (144 problems). The second most common problem is related to the vehicle's electrical system (121 problems).

Table 2. Common problems of Volvo S70

Problem Category Number of Problems
  Vehicle Speed Control
144
  Electrical System
121
  Engine And Engine Cooling
92
  Service Brakes
79
  Exterior Lighting
69
  Gasoline Fuel System
35
  Structure
31
  Air Bag
29
  Power Train
22
  Latches/locks/linkage
19
   
  Air Brake
16
  Suspension
15
  Seat Belt
14
  Equipment
12
  Tire
12
  Visibility
10
  Unknown Or Other
10
  Other Fuel System
10
  Wheel
8
  Seats
6
  Electronic Stability Control
5
  Steering
4
  Interior Lighting
4
  Child Seat
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Volvo S70 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 S70 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 S70 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 S70 Model Years

S70
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2000 19129,05819    
0.35

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Volvo S70 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

Model YearProblems Reported
  2002 S70
1
  2000 S70
14
  1999 S70
11
  1998 S70
46


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