Common 2015-2020 Audi TT Problems

Some of the worst issues 3rd generation TT owners have to deal with.

  1. Sunroof Leaks

    Multiple defects with the sunroof drainage system are causing massive amounts of leak problems for Audi owners. The water is soaking headliners, creating unsafe amounts of condensation, and short circuiting sensitive electronic components. …

    Continue reading article "Sunroof Leaks" Poorly drawn blue box outlining damage made to the headliner from rain leaking in through the sunroof.
  2. Start-Stop Defects

    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 …

    Continue reading article "Start-Stop Defects" A tachometer with the red arrow pointing at the 'ready' position

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.

What Breaks the Most

Years to Avoid

3rd Generation (2015–2020) TT Key Numbers

  1. 6 model years

    Grouping all models by their year can reveal some baddies.

  2. 1 complaint

    Running tally of owner grievances filed to CarComplaints.com.

  3. 8th in reliability

    Overall reliability rank out of 39 eligible generations.

Recent 3rd Generation (2015–2020) TT News

There's a lot of news out there, but not all of it matters. We try to boil down it to the most important bits about things that actually help you with your car problem. Interested in getting these stories in an email? Signup for free email alerts over at CarComplaints.com.

  1. The lead plaintiff in a proposed leaky sunroof class-action has requested a voluntary dismissal of the entire case, without prejudice.

    This is New Jersey we're talking about here, so it's not out of bounds to think the plaintiff was told "that's a nice car you've got there, it'd be a shame if something happened to it." Or maybe they just a free fix under the table and that was good enough for them.…

    keep reading article "Audi Sunroof Lawsuit Suddenly Dropped by Lead Plaintiff 🤔"
  2. There's a serious defect with VW Group's panomaric sunroofs. So a class-action lawsuits wants to know when are they going to do something about it?

    The NJ based suit says a difference in the expansion rate between the plastic water channels and steel reinforcement plates may cause stress cracks to occur at the edges of the reinforcement plates, more than wide enough to let water seep in.…

    keep reading article "Lawsuit Claims Audi's Sunroofs Have Defective Drainage Systems"
  3. A sunroof class-action lawsuit has been proposed for all California Audi owners and lessees with defective, leaky panoramic sunroofs.

    It's widely believed that VW Group, parent company of Audi, used sunroof drainage systems with a serious defect. A difference in expansion rates is causing the plastic water channel to crack were it meets steel reiforcement plates. The water then heads through the crack and into the interior.…

    keep reading article "California Audi Owners Are Tired of Leaky Sunroofs Damaging their Interiors"
  4. A proposed class-action filed in the Easter District of NY is fed up with Audi (and it's parent company Volkswagen Group) denying warranty claims for leaky, panoramic sunroofs.

    The lawsuit lists a long line of TSBs that talk about problems with the sunroof drainage systems. They even give dealerships tips on how to repair the issue on unsold inventory, but they won't honor warranty claims asking for the same repair.…

    keep reading article "Audi's Warranty is Useless For Leaky Sunroofs, Says Lawsuit"
  5. Audi and Volkswagen are recalling 119,000 vehicles to replace dangerous Takata airbag inflators.

    This campaign is part of an industry-wide effort involving more than a dozen automakers and 1.7 million vehicles. The chemical inside of Takata airbag inflators can become unstable over time, leading to violent and sometimes deadly airbag deployments. The recall is for both driver and passenger side inflators in the 2017 R8 and 2016-2017 TT.

    keep reading article "Takata Inflator Recall for TT and R8 Vehicles"
  6. Audi is recalling over 1,000 vehicles because of quick connectors that are supposed to hold fuel supply lines in place aren't doing their job.

    The detached lines will stop supplying fuel to the crankshaft and start depositing it onto hot engine surfaces. When flammable liquid meets something as hot as an exhaust manifold, things happen. Things you don’t want.…

    keep reading article "Quick Connecters Are Allowing Fuel Lines to Detach"