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Cheap-buyer’s guide · updated July 2026

How to buy a cheap Audi A5

The cheapest usable A5s2009 cars, typically 116k+ miles — average £3,529; genuinely sound ones go below that, rough ones cheaper still. The smart money buys the 2016 sweet spot at around £9,98420.7% cheaper than a 2017. A drop that size usually marks a generation change, so check which shape the year buys you — the saving is real either way. Figures from 5,381 real UK price observations, not book values.

What your money actually buys

The floor

£3,529

2009 average, ~116k miles. Cheapest seen: £1,495. Budget for prep.

The sweet spot ★

£9,984

2016 average, ~86k miles — the biggest one-year value drop on this model.

Newer & solid

£20,986

2021 average — the cheapest way into a sub-5-year-old car.

Full price-by-year and mileage tables: Audi A5 price guide.

Why the cheap ones are cheap

  • The known TFSI oil-burning and Multitronic/S tronic gearbox reputations scare off private buyers, so prices sag well below equivalent BMWs.
  • Diesel demonisation has hit the 2.0 TDI versions that make up much of the used supply.
  • Premium-badge servicing and repair costs put running the car beyond many cheap-end budgets, capping demand.

Known issues to check

The documented weak points on used Audi A5s. A cheap car with one of these brewing isn’t cheap.

TFSI oil consumption

1.8/2.0 TFSI petrols from 2008-2012 have a piston-ring design fault that burns oil, sometimes over 1 litre per 1,000km; the proper fix (new pistons and rings) commonly runs £2,000-£4,000.

Multitronic CVT failure

The Multitronic auto on front-wheel-drive first-generation cars is notorious for juddering, slipping and loss of drive; clutch-pack or control-unit repairs typically cost £1,500-£3,000.

S tronic mechatronic faults

The S tronic dual-clutch on 2008-2014 cars suffers documented mechatronic unit failures causing harsh shifts and limp mode; a new unit fitted at Audi is around £2,000, though specialist repairs are cheaper.

Timing chain tensioner (early 2.0 TFSI)

Pre-facelift 2.0 TFSI engines can suffer chain tensioner wear; a rattle on cold start is the warning, and a jumped chain wrecks the engine.

Before you hand over money

  • On any 2008-2012 petrol, check the dipstick and ask directly about oil top-up frequency between services.
  • Test an automatic from cold for judder, hesitation or clunky low-speed shifts before anything else.
  • Listen for timing-chain rattle in the first few seconds of a stone-cold start.
  • Full MOT history — recurring advisories are tomorrow’s bills. Our readiness check reads a reg’s real MOT record.
  • Write-off check — suspiciously cheap often means Cat S/N history. What the categories mean.

Where the cheap A5s actually are

The cheapest Audi A5s never reach the forecourt at their source price. Across 1,818 Audi A5 listings on dealer sale platforms, the average asking price was £12,985 against a retail value of £15,561 — the £2,576 gap is the dealer’s margin for prep, fees and risk. Private buyers can’t access those platforms, but knowing the gap tells you how hard to negotiate — and if you’re in the trade, it’s the whole game.

Common questions

How much does a cheap Audi A5 cost?

The cheapest usable A5s — 2009 cars, usually 116k+ miles — average £3,529. The value sweet spot is a 2016 at around £9,984. Based on 5,381 UK price observations, July 2026.

Why are some Audi A5s so cheap?

The known TFSI oil-burning and Multitronic/S tronic gearbox reputations scare off private buyers, so prices sag well below equivalent BMWs. Diesel demonisation has hit the 2.0 TDI versions that make up much of the used supply. Premium-badge servicing and repair costs put running the car beyond many cheap-end budgets, capping demand.

What should I check before buying a used Audi A5?

On any 2008-2012 petrol, check the dipstick and ask directly about oil top-up frequency between services. Test an automatic from cold for judder, hesitation or clunky low-speed shifts before anything else. Listen for timing-chain rattle in the first few seconds of a stone-cold start. Always check the MOT history and run a write-off (Cat S/N) check before handing over money.

More cheap-buyer guides

Methodology. Prices computed from 5,381 Audi A5 observations collected by ScanAuctions from UK marketplace and auction listings (asking prices, not final sold prices). Known-issue notes summarise widely documented owner and trade experience — always verify against the individual car. Last updated July 2026; refreshed monthly. Full detail: data & methodology.