The Audi A5 is the stylish coupe, convertible and Sportback derivative of the A4. Available in coupe, cabriolet and Sportback body styles, it shares its platform and engines with the A4. The 8T (2007–2016) and F5 (2016–present) generations are both well-represented on UK roads.
Quick Facts — Audi A5
Common Engines
1.8 TFSI, 2.0 TFSI, 3.0 TFSI, S5, RS5, 2.0 TDI, 3.0 TDI
6 Most Common Audi A5 Problems
These are the faults most frequently seen on the Audi A5 by UK garages — ranked by how commonly they occur and what they cost to fix.
The 8T A5 with the 2.0 TFSI carries the EA888 timing chain tensioner issue. A cold-start rattle on any early A5 2.0 TFSI needs immediate investigation.
💷 Typical repair cost: £800–£2,500
Diesel A5 models develop DPF blockages and EGR carbon buildup, especially on short journeys. Common fault on all high-mileage TDI examples.
💷 Typical repair cost: £200–£1,500
The A5 cabriolet's folding fabric roof can develop motor, latch and hydraulic faults causing it to fail mid-cycle or refuse to open/close.
💷 Typical repair cost: £400–£1,500
Direct injection carbon deposits on intake valves affect all TFSI engines. Walnut blasting every 40,000–60,000 miles is recommended.
💷 Typical repair cost: £300–£600
The S-Tronic DSG gearbox on petrol A5 models can develop judder and hesitation at low speeds — particularly on the dry-clutch 7-speed variant.
💷 Typical repair cost: £0–£2,000
Aged or perished door seals on the cabriolet allow water into the cabin. Wet carpets and electrical issues are the result.
💷 Typical repair cost: £100–£400
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Audi A5 — MOT Tips
TFSI timing chain on early 8T models is priority check. DPF warning light is an automatic fail. Convertible roof must operate and seal correctly. Check all DSG warning lights.
Engine management light on before your MOT? It's an automatic fail. Run a
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Audi A5 Tyres
Most Audi A5 models run 225/50 R17 or 245/40 R18 or 255/35 R19 depending on trim level and year. Always check the placard inside the driver's door for the exact size for your vehicle.
Summary
The A5 is one of the most attractive cars at any price and strong used value. Timing chain health on early 2.0 TFSI models and DPF condition on diesels are the critical checks. Cabriolet buyers should inspect the roof mechanism thoroughly.
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