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Audi A5 — what actually breaks, by engine

2015–2025 · 118 federal complaints · 1 engines

Reliability ratings usually stop at the model. But two A5s with different engines can fail in completely different ways — and the engine is a choice you make at purchase. Here is what owners actually complained about, separated by engine.

Audi A5
Photo: Hugh Llewelyn · CC BY-SA 2.0

Ownership profile

Each axis is this model's percentile within its own segment — comparing a pickup's fuel economy against a compact car's would say nothing. Built from EPA test data.

Fuel economy57Running cost52Low emissions58Cabin space13Cargo space29Displacement26
27 MPG Fuel economy$2,800/yr Running cost330 g/mi Low emissions84 cu ft Cabin space11 cu ft Cargo space2.0 L Displacement

Value for money

29/ 100

$41,900

Capability per relative dollar, ranked against the same segment. It divides this model's average percentile across the axes above by its price relative to the segment median — so 80 means it delivers more per dollar than 80% of its class.

Price source: CarAPI vehicle trim database — base-trim MSRP, median across 2015-2020 model years. Unlike every other figure on this page, the price does not come from a federal record. It is the manufacturer's list price for the cheapest trim — what people actually paid varies with incentives and options, so treat this one axis as indicative, not exact.

What each engine's complaints are about

Share of component mentions. One complaint can name several components, so these describe what an engine's complaints are about — they are not a failure rate.

Transmission & drivetrainEngineBrakesElectricalSteeringBody & structureFuel systemEverything else

TFSI · 2.0L I4

2015–2025 · Turbo

118complaints
Electrical 32%
Show the numbers
ComponentShareMentions
Transmission & drivetrain2.8%5
Engine6.2%11
Brakes0.6%1
Electrical31.8%56
Steering3.4%6
Body & structure2.8%5
Fuel system1.7%3
Everything else50.6%89

Diagrams show cylinder layout and displacement from the decoded VIN data. Turbo and supercharger marks come from EPA certification records; where EPA cannot tell two engines of the same size apart, the mark is left off rather than guessed.

How many of those complaints involved a fire, crash or injury

Unlike the totals above, these can be compared between engines. Each figure is a share of that engine's own complaints, so how many were sold cancels out. The vertical mark is the average across every vehicle in this database.

TFSI · 2.0L I4

118
Fire0.0%
Crash1.7%
Injury0.0%

all vehicles — Fire 1.1% · Crash 4.4% · Injury 2.6%

Still a share of complaints, not of vehicles on the road — it says how severe this engine's reported problems were, not how often it gets into trouble. Engines with fewer than 80 complaints are left out: fire is rare enough that a single extra case would swing the number.

Recalls on this model

Unlike everything above, recalls are issued for the whole model, not per engine — NHTSA publishes them by make, model and year. These are defects the manufacturer confirmed and filed federally, which makes them a useful counterweight to owner-reported complaints.

18 recalls · covering 2015–2025

Seat Belts 3Air Bags 3Back Over Prevention 2Suspension 2Engine And Engine Cooling 2Equipment 1Tires 1Seats 1
All recalls, with campaign numbers
YearsComponentNHTSA campaign
2025–2025Seat Belts › Rear/Other › Retractor25V899000
2025–2025Seat Belts › Front › Retractor25V638000
2022–2022Equipment › Electrical › Infotainment › Video (Touch)Screen/Monitor/Unit22V806000
2021–2021Back Over Prevention › Display Function22V742000
2019–2021Tires22V034000
2018–2020Seats21V874000
2022–2022Back Over Prevention › Sensing System › Camera21V825000
2021–2021Seat Belts › Rear/Other › Retractor21V606000
2019–2021Suspension › Rear › Axle › Non-Powered Axle Assembly21V295000
2020–2021Exterior Lighting › Tail Lights20V737000
2018–2018Air Bags › Frontal › Passenger Side › Inflator Module19V547000
2018–2018Suspension › Front18V893000
2018–2018Air Bags › Frontal › Passenger Side › Inflator Module18V836000
2015–2017Engine And Engine Cooling › Cooling System18V229000
2018–2018Air Bags › Side/Window17V822000
2018–2018Structure › Body › Door › Hinge And Attachments17V675000
2015–2016Electrical System › Wiring17V622000
2015–2017Engine And Engine Cooling › Cooling System17V002000

Recall repairs are free, always — any franchised dealer, regardless of the car's age, mileage, or how many owners it has had. A great many cars are driving around with recalls nobody ever redeemed.

More recalls does not mean a worse car. Recall counts rise with sales volume and model complexity, and a manufacturer that recalls promptly looks worse than one that drags its feet. Read what the recalls were for, not how many there were.

Check a specific car by VIN at NHTSA →

NHTSA crash-test ratings

Official 5-star ratings from standardized federal crash tests. Unlike the complaint figures above, these are directly comparable between models. Where a model year was tested in several versions, the lowest overall rating is shown.

Overall · 2025
★★★★★
Frontal · 2025
★★★★☆
Side · 2025
★★★★★
Rollover · 2025
★★★★★

9.9% rollover risk

Model yearOverallFrontalSideRollover
2015Not ratedNot ratedNot ratedNot rated
2016Not ratedNot ratedNot ratedNot rated
2017Not ratedNot ratedNot ratedNot rated
2018★★★★★★★★★☆★★★★★★★★★★
2019★★★★★★★★★☆★★★★★★★★★★
2020★★★★★★★★★☆★★★★★★★★★★
2021★★★★★★★★★☆★★★★★★★★★★
2024★★★★★★★★★☆★★★★★★★★★★
2025★★★★★★★★★☆★★★★★★★★★★
Stability control: StandardForward-collision warning: StandardLane-departure warning: Standard

Source: NHTSA New Car Assessment Program.

Method, sources and limitations

How this was built

  1. Source: NHTSA public complaint database (api.nhtsa.gov), retrieved 2026-08-16. Every complaint carries the first 11 characters of the vehicle's VIN.
  2. Those partial VINs were decoded through NHTSA's vPIC service to identify the exact engine — 98.2% resolved successfully. This is how the data gets to engine level; model-level ratings cannot do this.
  3. Percentages are the share of component mentions, not of complaints. One complaint can name several components, so the figures describe what a given engine's complaints are about — they do not sum to a failure rate.

What this does not tell you

  • This is not a reliability ranking. Complaint totals track how many were sold, not how often they fail. Nobody publishes per-engine sales volume, so comparing totals between engines would be misleading. Read each engine's own breakdown; don't race them against each other.
  • Engines with fewer than 50 complaints are omitted — too small to say anything honest about.
  • Complaints are self-reported by owners. They skew toward problems that are alarming or expensive, and toward vehicles under active recall attention.

Compare with

Or see the whole segment at once: Compact car →

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