Buying Guide: Audi Q5 (B8/B8.5, 2009–2017) Reliability and What to Check Before Buying
Produced between 2009 and 2017, the Audi Q5 B8 (later updated as the B8.5 in 2013) marked Audi’s first compact luxury SUV built on the MLB platform, shared with the A4, A5, and S4.
The Q5 quickly became one of Audi’s most popular models thanks to its refined interior, solid handling, and strong engine range — but like many vehicles of this era, long-term ownership depends heavily on maintenance and awareness of known weak points.
In this guide, we’ll go over each engine’s reliability, typical mechanical and electrical problems, and practical checks you can perform before buying.
You already own an Audi Q5 and want to improve it? Visit our online store and find all the parts you need!
🔹 Strengths of the Q5 B8/B8.5
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Excellent interior build quality and sound insulation
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Smooth and stable ride, especially with quattro AWD
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Balanced performance and fuel economy
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Wide availability of engines and options in the used market
⚙️ Engine Reliability Overview (US Models)
2.0 TFSI (Turbocharged Inline-4)
Used across multiple Audi models, the 2.0 TFSI is one of the most common engines in the Q5 lineup — available from 2009 to 2017 with power ranging from 211 to 252 hp depending on the model year.
Known issues:
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Excessive oil consumption: Early 2009–2012 models are notorious for burning oil due to defective piston rings. Audi issued multiple TSBs and even a service campaign for this issue.
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Timing chain tensioner failure: On pre-2013 engines, the tensioner can fail without warning, leading to catastrophic engine damage.
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PCV valve failure: Leads to rough idle, lean codes, or excessive crankcase pressure.
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Water pump and thermostat leaks: Common around 60–90k miles.
How to check before buying:
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Ask for oil consumption test results or evidence of the updated piston/ring set.
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On cold start, listen for rattling near the front of the engine (possible timing chain slack).
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Inspect for coolant residue around the water pump housing.
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Check for misfires or hesitation that could suggest PCV or injector issues.
3.2 FSI V6 (Naturally Aspirated)
Available mostly in early Q5 models (2009–2012), the 3.2 FSI uses a direct-injection system and timing chain.
Known issues:
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Carbon buildup on intake valves: Common to all Audi FSI engines; causes misfires and reduced power.
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Timing chain rattle: Usually due to worn tensioners or guides.
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Thermostat failures and coolant leaks at the rear coolant pipe.
How to check before buying:
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If mileage exceeds 80,000 miles, check service records for valve cleaning (walnut blasting or chemical method).
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Listen for rattle on startup when the engine is cold.
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Scan for timing correlation codes — stretched chains are expensive to repair.
Overall, the 3.2 FSI is reliable when properly maintained but expensive to service due to its complex design.
3.0 TFSI V6 (Supercharged)
Introduced for the Q5 3.0T and SQ5, this supercharged V6 is one of Audi’s best engines from this era — also found in the S4, S5, and A6.
Known issues:
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Water pump leaks and thermostat failure: Common around 60–90k miles.
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Carbon buildup: Typical of all direct-injection engines, noticeable after 80k miles.
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PCV valve and breather system issues: Can cause high idle or check engine lights.
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Chain tensioner wear: Light rattle at cold start — harmless if brief, but prolonged noise requires attention.
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Coolant leaks under the supercharger: Caused by worn gaskets or the intercooler seals.
How to check before buying:
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Cold-start the car and listen for metallic rattles from the rear of the engine.
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Check coolant level and look for dried residue near the supercharger housing.
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Inspect for oil around the PCV assembly on top of the engine.
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If possible, review any carbon cleaning or water pump replacement history.
This engine is very durable when maintained properly — capable of well over 150k miles — and delivers strong performance with minimal chronic issues once updated components are fitted.
3.0 TDI (Turbo Diesel V6)
Available in the US between 2014 and 2016, the 3.0 TDI combines strong torque with good fuel economy.
Known issues:
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EGR cooler leaks and clogging (leading to coolant loss or CEL).
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DPF regeneration problems if used mostly for short trips.
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Oil cooler gasket leaks with age.
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Timing chain stretch (rare but possible on high-mileage vehicles).
How to check before buying:
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Ensure the car has had emissions recall work completed (related to Dieselgate).
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Look for white residue around the EGR cooler and signs of coolant evaporation.
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On test drive, ensure smooth power delivery — hesitation may indicate DPF issues.
Despite the complexity of emissions systems, this V6 diesel is one of the most robust Q5 engines when properly maintained.
🔩 Transmission & Drivetrain
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Tiptronic (6-speed automatic): Used with the 3.2 FSI and 3.0 TFSI; generally durable. Regular fluid changes (every 40–50k miles) are essential.
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8-speed automatic (ZF 8HP): Found on later 2.0 TFSI and 3.0 TDI models. Excellent reliability record if fluid changes are done.
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DSG (7-speed S-Tronic): On certain 2.0 TFSI models. Early versions (pre-2013) suffered from mechatronic failures and clutch wear. The 2013+ B8.5 update improved long-term reliability.
Tip for buyers: Always check for smooth shifts when cold and warm. Hesitation or shuddering may indicate clutch wear or valve body problems.
Common Problems (All Versions)
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Control arm bushings and suspension links: Wear around 60–80k miles, causing clunks or vague steering.
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Electric parking brake module failure: Expensive if corroded or exposed to moisture.
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Sunroof drains clogging: Leads to water leaks in the headliner or footwells.
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Power steering leaks: Common on early hydraulic systems; later models use more reliable electric assist.
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MMI system failures: Frozen screen, faulty control knob, or Bluetooth dropout — mostly software-related.
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AC compressor clutch failure around 80–100k miles.
Recommended Years and Engines
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Best balance: 2013–2017 2.0 TFSI (updated engine with improved rings and tensioner).
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Performance pick: Q5 3.0T — powerful, reliable, and tunable.
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Efficiency and longevity: 3.0 TDI.
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Avoid: 2009–2011 2.0 TFSI unless the oil consumption fix is documented.
How to Spot Common Problems During Inspection
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Perform a cold start to detect any chain rattle or rough idle.
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Check the coolant expansion tank for signs of leaks or oily residue.
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Verify transmission service records — lack of fluid change is a red flag.
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Inspect the front suspension arms for play by lightly rocking the wheels.
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Test all MMI functions — navigation, Bluetooth, backup camera, and sound.
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Use an OBD-II scanner to check for pending fault codes before purchase.
🔧 Make Your Audi Q5 Feel Modern Again
Even a well-maintained Q5 can feel dated by today’s tech standards. Fortunately, several upgrades can bring it up to modern luxury levels.
Start by replacing worn interior buttons or knobs to restore the cabin’s premium look.
Add a CarPlay / Android Auto module to enjoy wireless smartphone connectivity while keeping your factory MMI system.
You can also enhance your Q5’s style with carbon fiber mirror covers, carbon interior trims, paddle shifters and much more.
All available on Euro Premium Parts, with free shipping and a 1-year warranty!