Audi A5 Mk3 (B10)
Since July 2024 the A5 nameplate covers what was the A4: the B10-generation compact executive saloon (liftback) and Avant, built on the new Premium Platform Combustion and on sale in the UK from autumn 2024 as the A4 saloon and estate were discontinued under Audi's odd-petrol/even-electric naming strategy. Power comes from the familiar EA888 2.0 TFSI and EA288 evo 2.0 TDI with a new 48V 'MHEV plus' system that adds a 24hp transmission-mounted motor, and from March 2025 the e-hybrid plug-in versions (295hp, 100km WLTP electric range). Reviewers praise the ride, space and refinement, but the used-car story is the interface: RAC calls the cabin quality and controls a step backwards from the old A4 generation, with physical controls 'notable by their absence' beyond a lone volume knob, and Auto Express notes Audi's own fix - a steering wheel with real controllers - arrives only on 2026MY cars and cannot be retrofitted. There are also no coupé or cabriolet versions of this generation, and no A5 e-tron - that name lives elsewhere.
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Common Faults & Reliability
These are the most common documented problems for the Audi A5 Mk3 (B10), sorted by their typical impact and frequency.
Touchscreen-First Controls With No Physical Buttons - and the Fix Won't Retrofit
low severityRAC's verdict on the new A5 is blunt: 'cabin quality and controls a step backwards' - bar a single volume/track-skipping knob and a couple of console buttons, physical controls are 'notable by their absence' and the steering-wheel touch pads are a struggle. Audi's own response is documented by Auto Express: a redesigned interface with a new steering wheel featuring physical controllers, launched on 2026 model-year cars available from December 2025, and explicitly not retrofittable. Used buyers of 2024/25 cars therefore inherit the interface in its least-favoured form, which is worth factoring into resale as much as into the daily drive.
Cabin Material and Layout Regression Against the A4 Generation
low severityThe A5 replaced the A4 but, on RAC's scorecard, brings 'cabin quality and controls a step backwards' in the same car that is otherwise refined and well built, and The Car Expert's aggregate quotes reviewer 'reservations with the styling and layout of the interior' (Carwow) plus lowlights that rivals are more comfortable and practical with tighter rear headroom than tall passengers want. It is not a fault that strands you - it is the soft-cost story of a price-raised, PPC-driven generation: hard plastics in places the outgoing A4 padded, and a spec sheet where equipment that used to be standard is now options.
S tronic Hesitation and MHEV+ Low-Speed Step-Off Lag
medium severityThe B10 A5 pairs its 2.0 TFSI and 2.0 TDI engines with a 7-speed S tronic dual-clutch transmission and Audi 48V MHEV plus powertrain generator mounted to the gearbox output shaft. While engineered to provide an 18kW electric boost and smooth stop-start, the electronic throttle-to-clutch calibration can feel hesitant and unhurried when accelerating from a rolling stop into busy UK roundabouts. Parkers observed that the transmission occasionally requires a manual paddle override to find low-end response, while Auto Express noted the petrol powertrain is less punchy off the line than expected. Transmission control module software updates help reduce the hesitation.
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