The 2009 A5 is a handsome coupe built on the B8 platform, sharing DNA with the B8 A4. The 2.0T is plagued by catastrophic piston ring land failures, while the 3.2L V6 is far more reliable but drinks fuel and has typical German cooling/electrical gremlins.
2.0T TFSI Piston Ring Land Failure (Ringland Failure)
Common · high severity
Typical onset: 60,000-100,000 mi
Symptoms: Sudden onset of extreme oil consumption (quart every 500-1000 miles), Blue smoke on cold starts or hard acceleration, Misfires, rough idle, check engine light (P0300-P0304 codes), Metallic rattling from engine bay in severe cases
Fix: Complete engine rebuild or short block replacement. Involves pulling engine, machining block if salvageable, new pistons/rings/bearings, gaskets, timing components. 25-35 labor hours at indie shop. Many opt for low-mileage used engines instead (15-20 hours swap).
Estimated cost: $6,000-12,000
Transmission Oil Cooler Line Failure
Common · medium severity
Typical onset: 70,000-120,000 mi
Symptoms: Puddles of ATF under car, often near front-center, Burnt ATF smell when parked, Transmission slipping or delayed shifts if fluid level drops significantly, Low transmission fluid warning light
Fix: Replace transmission cooler lines (hard lines corrode or crack at bends) and top off ATF. Some shops replace entire cooler assembly if internals are suspect. 3-5 labor hours including fluid service.
Estimated cost: $800-1,500
Timing Chain Tensioner Failure (2.0T)
Occasional · high severity
Typical onset: 80,000-130,000 mi
Symptoms: Cold-start rattle for first 2-3 seconds (sounds like marbles in a can), Check engine light with cam/crank correlation codes (P0016, P0017), Rough running, possible no-start if chain jumps timing, Metallic whirring noise at idle
Fix: Replace timing chain, tensioners, guides, and upper chain. Requires front-end disassembly, special cam locking tools. 12-16 labor hours. Critical to replace before chain jumps and bends valves.
Estimated cost: $2,500-4,000
Water Pump and Thermostat Housing Leaks
Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: Coolant drips or puddles under front of engine, Sweet coolant smell in cabin or under hood, Low coolant warning light, frequent top-offs needed, Overheating if leak progresses unchecked
Fix: Replace water pump (often plastic impeller failure) and thermostat housing (plastic cracks). Done together since labor overlaps. 4-6 hours with coolant flush.
Estimated cost: $900-1,600
Carbon Buildup on Intake Valves (2.0T)
Common · low severity
Typical onset: 50,000-80,000 mi
Symptoms: Rough idle, especially when warm, Hesitation or stumble on light throttle acceleration, Misfires under load (P030X codes), Loss of power, reduced fuel economy
Fix: Walnut-blast intake valve cleaning. Remove intake manifold, media-blast valves with crushed walnut shells. Preventive maintenance every 50-60k miles recommended. 5-7 labor hours.
Estimated cost: $600-1,000
Ignition Coil and Spark Plug Failure (2.0T)
Occasional · low severity
Typical onset: 40,000-80,000 mi
Symptoms: Check engine light with misfire codes (P0300-P0304), Rough idle, hesitation during acceleration, Reduced fuel economy, Flashing check engine light under hard acceleration (indicates active misfire)
Fix: Replace all four coil packs and spark plugs together (coils fail individually but best to do as set). 1.5-2 labor hours, straightforward DIY job.
Estimated cost: $500-800
Transmission Mount and Subframe Bushings
Occasional · low severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunk or thud when shifting from Park to Drive/Reverse, Vibration felt through shifter or center console, Excessive engine/trans movement visible during hard acceleration, Metallic banging over bumps
Fix: Replace transmission mount (liquid-filled mount collapses) and inspect subframe bushings. Mount alone is 2-3 hours; if subframe bushings are shot, add 4-6 hours for subframe drop.
Estimated cost: $400-1,200
Owner tips
If buying a 2.0T, demand oil consumption test and compression/leak-down test — ringland failures are endemic and expensive
Change ATF every 40k miles regardless of 'lifetime fill' marketing — cooler line failures contaminate fluid
Walnut-blast intake valves every 50-60k miles on 2.0T to prevent driveability issues from carbon buildup
The 3.2L V6 is drastically more reliable than the 2.0T but expect 18-20 MPG combined and premium fuel
Budget $1,500/year for deferred maintenance items (cooling, ignition, mounts) even if buying low-mileage
Buy the 3.2L V6 if you can afford the fuel costs; avoid the 2.0T unless engine has been recently rebuilt with updated pistons or you're prepared for a $10k engine bill.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
Fitment notes: Battery located under trunk floor; AGM type required for electrical system compatibility
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Every control module on the 2008-2016 Audi A5 — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
⚠️ Memory seats only. Calibration of seat position sensors may be needed.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Volkswagen Group of America, Inc. (VW) is recalling certain model year 2008-2009 Audi A4, A5, and Q5 vehicles. In the affected vehicles, the air bag control units may corrode and fail.
Consequence: If the air bag control unit fails, the air bags may not deploy in the event of a crash, increasing the risk of occupant injury.
Remedy: Audi will notify owners, and dealers will replace the air bag control unit, free of charge. The recall began October 2016. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69O1.
Performance
Horsepower
211hp
Torque
258lb-ft
0–60 mph
6.4sec
Quarter mile
14.9sec
Top speed
130mph
Capability & size
Curb weight
3,660lb
Wiper blades
Coupe body style, no rear wiper. First generation A5 coupe.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2009 Audi A5 2.0L Turbo I4 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.