The Worst 2016-2021 A4 Problems

Busted Timing Chains

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Audi's EA888 2.0-liter engine has a history of tensioner problems in its timing chain. The loose chain is to blame for multiple occurances of catastrophic engine failure. Audi was forced to offer settlement offers, including an extended war…

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Start-Stop Defects

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There are multiple problems with Audi's start-stop technology that outweigh the modest fuel efficiency gains. Owners complain that the system will shut off the power steering and brake systems at dangerous times and cause the accelerat The …

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What Owners Complain About

Sometimes it helps just to tally up the complaints and see where the biggest stacks are. Use this information to learn about troublespots or to run for the hills.

Timeline of 5th Generation A4 News

By the Numbers

  1. 6 model years

    Grouping all models by their year can reveal some baddies.

  2. 12 complaints

    Running tally of owner grievances filed to CarComplaints.com.

  3. 20th in reliability

    Overall reliability rank out of 39 eligible generations.