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What Goes Wrong as Cars Age

Consumer Reports Online

Even the best cars develop problems as they rack up the miles. Parts wear, break down, and ultimately need replacement, following the natural order for cars. But components wear at different rates, as highlighted in the chart below.

Breaking out the data from our Annual Auto Survey reveals trends among the 17 potential trouble areas. We've sorted the average problem rates at three, six, and nine years to show the prevalence of some problems and how they increase over time.