TransmissionHigh
S tronic and multitronic hesitation and juddering
- Typically appears
- 70,000+ miles
- What to inspect
- Test low-speed manoeuvres and check gearbox service records
2016–2024 Audi A5 · common problems & known faults
A coupe and Sportback executive car with strong retail demand. Specification and gearbox health drive value.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2016–2024 Audi A5 are S tronic and multitronic hesitation and juddering, DPF and AdBlue faults on 2.0 TDI models and Coolant leak from the thermostat housing and water pump module on 2.0 TFSI (EA888) engines. 4 of the documented issues are rated high severity · inspect these first. Full inspection points, onset mileage and what to check are listed below.
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Build the inspection planReliability snapshot
Based on the documented faults on this page for the Audi A5.
3.4/ 10
- Critical
- 0
- High
- 4
- Medium
- 4
- Low
- 0
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
ExhaustHigh
DPF and AdBlue faults on 2.0 TDI models
- Typically appears
- 70,000+ miles
- What to inspect
- Check for warnings after a full-temperature run
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Build the inspection planSuspensionMedium
Front control arm bush wear causing knocks and wander
- Typically appears
- 70,000+ miles
- What to inspect
- Listen over broken tarmac and check tyre wear
ElectricalMedium
MMI infotainment and camera faults
- Typically appears
- Age-related
- What to inspect
- Test every screen function and the reversing camera
Engine CoolingHigh
Coolant leak from the thermostat housing and water pump module on 2.0 TFSI (EA888) engines.
- Typically appears
- 40,000-70,000 miles
- What to inspect
- Shine a torch under the intake manifold on the left side of the engine block. Look for dried pink or purple crust, indicating a weeping housing seal.
Engine TimingHigh
Timing chain tensioner wear causing a metallic rattle on 3.0 TDI V6 models.
- Typically appears
- 70,000-100,000 miles
- What to inspect
- Ensure the engine is completely cold. Open the bonnet, start the car, and listen near the bulkhead for a sharp metallic rattle lasting 2-3 seconds before oil pressure builds.
Body & GlassMedium
Frameless door window regulator failure or microswitch faults causing the glass to catch on the roof seal.
- Typically appears
- 5-8 years
- What to inspect
- Open and close each door from the outside. Verify the window glass drops instantly by a few millimetres when pulling the handle and raises tightly into the seal when closed.
LightingMedium
Daytime Running Light (DRL) LED modules burning out, causing the light guide to turn yellow or fail completely.
- Typically appears
- 50,000-80,000 miles
- What to inspect
- Switch the ignition on and activate the DRLs. Stand in front of the car and check that the LED strips are bright white. Any yellowing indicates a burnt-out light tube requiring a costly replacement.
Inspecting a Audi A5?
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Build my inspection planFrequently asked questions
What is the strongest A5 in the market?
A quattro diesel Sportback with full history sells fastest to company-car downsizers.
What should I always check?
Front suspension bushes and gearbox behaviour from cold. Both are common and expensive.
Do buyers pay for spec?
Yes. Virtual Cockpit, leather and larger wheels materially move price on these cars.
Are the mild-hybrid (MHEV) systems reliable on later models?
The 12V and 48V mild-hybrid systems introduced from 2019 are generally robust, but the belt-driven starter alternator can fail on 48V models. This triggers electrical system warnings and disables the stop-start function. Replacement is expensive, so verify the stop-start engages seamlessly during a test drive.
Which engine variant offers the best balance of reliability and saleability?
The 2.0 TFSI, often badged as 40 TFSI, is highly sought after by UK buyers avoiding diesel due to ULEZ concerns. The EA888 engine is largely cured of older oil consumption issues, making it a fast-selling unit provided the water pump and thermostat housing have been inspected.
How can I tell if the Quattro system requires maintenance?
The B9 uses either a traditional Torsen mechanical differential or Quattro with Ultra technology. The Ultra system requires fluid changes every 40,000 miles. Check the service history for this specific fluid change, as neglected systems will bind or scrub the tyres during tight, low-speed cornering on the forecourt.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.
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