Audi A5 reliability, MPG and running costs
Figures updated
The Audi A5 is a executive car; the latest version we cover is the B10 (2024–). In 2024 MOT tests it scored 135 for reliability (100 is average), ranking 96 of 442, and 22.0% failed first time against a UK average of 28.5%. Its most common MOT failure is tread depth (3.4% of tests). Boot space is 445 litres (1,299 with the seats folded).
Audi A5 key specs (B10 (2024–), 5-door hatchback)
Price new
from £42,760
Boot
445 litres (1,299 seats folded)
Seats
5
Size (L × W × H)
4,829 × 1,860 × 1,444mm
Power
up to 299 PS
0–62mph
from 5.9 sec
Euro NCAP
5 stars (2024)
2024 on models; figures vary by version. Prices from the October 2026 price list. Sources: audi.co.uk, oneaudi-falcon-asset-urls.prod.renderer.one.audi, uploads.audi-mediacenter.com, euroncap.com.
Ranked 96 of 442 cars in the 2024 MOT Reliability League, and 6 of 16 executive cars
In 2024, 124,169 Audi A5s aged 3 to 20 had an MOT and 22.0% failed first time (UK average 28.5%). Taking age and mileage into account, the Audi A5 is 26% less likely to fail than the average car of the same age and mileage. At the first MOT, at three years old, 12.7% failed (UK 12.7%).
First-time fail rate
22.0%
UK 28.5%
Fail rate at 3 years
12.7%
UK 12.7%
Average miles a year
9,300
Typical age at test: 9 years
Audi A5 MOT failure rate by age
Most common Audi A5 MOT faults
- Tread depth: tread depth below requirements of 1.6mm3.4% of tests
- Condition: has ply or cords exposed2.3% of tests
- Coil spring: fractured or broken2.1% of tests
- Condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.8% of tests
- Brake pads: less than 1.5 mm thick1.7% of tests
- Malfunction indicator lamp: inoperative or indicates a malfunction1.6% of tests
What the Audi A5 fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Tyres | 8.8% | ▲ 1.2× as often |
| Suspension | 6.0% | ▼ 36% less often |
| Lights and electrics | 5.0% | ▼ 57% less often |
| Brakes | 3.3% | ▼ 53% less often |
| Visibility | 2.8% | ▼ 38% less often |
| Body and structure | 2.2% | ▼ 34% less often |
| Exhaust and emissions | 2.0% | ▼ 38% less often |
| Wheels | 0.5% | ▲ 1.2× as often |
| Seat belts and airbags | 0.5% | ▼ 41% less often |
| Steering | 0.3% | ▼ 87% less often |
How big is the Audi A5's boot?
The B10 (2024–) Audi A5 has 445 litres of boot space with the rear seats up and 1,299 litres with them folded, according to the manufacturer. That's the 7th biggest of the 8 executive cars we compare; the Mercedes-Benz E-Class has the most, at 540 litres.
What MPG does the Audi A5 do?
Official economy for the Audi A5 ranges from 23.3 to 70.6mpg across the 352 versions listed by the Vehicle Certification Agency (2008–2025). A typical petrol version manages 41.5mpg and a typical diesel 61.4mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a Audi A5?
Any Audi A5 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Audi A5 registered between March 2001 and March 2017 is taxed on its CO2: £20 to £790 a year.
Work out tax for a specific carAudi A5 specs and running costs
Official figures for 352 versions sold in the UK between 2008 and 2025.
Fuel types
Diesel, Hybrid, Petrol, Plug-in hybrid
Official economy
23.3–70.6 mpg
CO2
46–288 g/km
Power
150–299 PS
| Version | Fuel | Economy | CO2 | Car tax | Company car tax |
|---|---|---|---|---|---|
| A5 Coupé TDI 163PS163 PS · A7 · listed 2025 | Diesel | 55.4 mpg | 134g | £200 | 36% |
| A5 Saloon TDI 204 PS S tronic204 PS · A7 · listed 2025 | Diesel | 57.6 mpg | 128g | £200 | 35% |
| A5 Saloon TDI 204 PS quattro S tronic204 PS · A7 · listed 2025 | Diesel | 55.4 mpg | 135g | £200 | 37% |
| A5 Avant TDI 204 PS S tronic204 PS · A7 · listed 2025 | Hybrid | 56.5 mpg | 130g | £200 | 32% |
| A5 Avant TDI quattro 204 PS S tronic204 PS · A7 · listed 2025 | Hybrid | 54.3 mpg | 136g | £200 | 33% |
| A5 Coupé 45 TFSI quattro 265PS265 PS · A7 · listed 2025 | Hybrid | 38.7 mpg | 166g | £200 | 37% |
| A5 Avant TFSI 150 PS150 PS · A7 · listed 2025 | Petrol | 41.5 mpg | 155g | £200 | 37% |
| A5 Saloon TFSI 150 PS150 PS · A7 · listed 2025 | Petrol | 41.5 mpg | 154g | £200 | 36% |
| A5 Avant TFSI 204 PS204 PS · A7 · listed 2025 | Petrol | 40.9 mpg | 157g | £200 | 37% |
| A5 Saloon TFSI 204 PS204 PS · A7 · listed 2025 | Petrol | 41.5 mpg | 155g | £200 | 37% |
| A5 Coupé 45 TFSI quattro 265PS265 PS · A7 · listed 2025 | Petrol | 38.7 mpg | 166g | £200 | 37% |
| A5 Avant e-hybrid e-hybrid quattro 299PS299 PS · A7 · listed 2025 | Plug-in hybrid | 134.5 mpg | 48g | £200 | 10% |
| A5 Saloon e-hybrid e-hybrid quattro 299PS299 PS · A7 · listed 2025 | Plug-in hybrid | 141.2 mpg | 46g | £200 | 10% |
| A5 Coupé 2.0 TDI 190PS Ultra 17'' wheelsM6 · listed 2018 | Diesel | 68.9 mpg | 106g | £200 | – |
| A5 Coupé 2.0 TDI 190PS Ultra 18'' wheelsM6 · listed 2018 | Diesel | 67.3 mpg | 111g | £200 | – |
Economy and CO2 are official NEDC (before 2018) or WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement. Company car tax is the 2026/27 benefit-in-kind rate. Showing the 15 most recent of 352 versions.
What a Audi A5 costs to fuel
- petrol, typical official 41.5mpg…
- diesel, typical official 61.4mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a Audi A5Buying a used Audi A5?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Compare the Audi A5 with other executive cars
Reliability, economy, car tax and running costs side by side.
Other Audi models
Frequently asked questions
›Is the Audi A5 reliable?
Its MOT record is better than average: the Audi A5 is 26% less likely to fail than the average car of the same age and mileage, with a reliability score of 135 in our 2024 league (100 is average).
›What are common problems with the Audi A5?
The most common MOT fault is “Tread depth: tread depth below requirements of 1.6mm”, found in 3.4% of tests.
›How big is the Audi A5's boot?
The B10 (2024–) Audi A5 has 445 litres of boot space with the rear seats up and 1,299 litres with them folded, according to the manufacturer. That's the 7th biggest of the 8 executive cars we compare; the Mercedes-Benz E-Class has the most, at 540 litres.
›What MPG does the Audi A5 do?
Official economy for the Audi A5 ranges from 23.3 to 70.6mpg across the 352 versions listed by the Vehicle Certification Agency (2008–2025). A typical petrol version manages 41.5mpg and a typical diesel 61.4mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a Audi A5?
Any Audi A5 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Audi A5 registered between March 2001 and March 2017 is taxed on its CO2: £20 to £790 a year.
›How many Audi A5s fail their MOT?
22.0% of Audi A5s aged 3 to 20 failed their MOT first time in 2024, and 12.7% failed at their first MOT.
Sources: DVSA anonymised MOT tests 2024, all versions of the Audi A5 combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.