Used Audi A6 Allroad for sale in Europe

About the Audi A6 Allroad

The Audi A6 Allroad is a raised estate version of the A6 Avant. It has permanent quattro four-wheel drive, extra ground clearance and plastic cladding around the wheel arches and sills. It suits drivers who want a large load area and extra capability on gravel, snow or rough tracks, without moving to an SUV.

Body style is always an estate. Engines have included V6 and V8 petrol units and V6 diesels, depending on the generation. Later cars add mild-hybrid systems. Our listings also include hybrid, plug-in hybrid and LPG-converted cars, so check the exact fuel type and specification of each advert.

Most examples carry adjustable suspension, and many have an automatic gearbox. Equipment, drivetrain and age differ a lot between model years. Compare cars of the same generation and engine rather than the badge alone.

Generations

• C5 allroad quattro (2000-2005) — The first Allroad, based on the C5 A6 Avant, with air suspension and a choice of petrol V6, diesel V6 and V8 engines.
• C6 allroad quattro (2006-2011) — Based on the C6 A6 Avant, with air suspension and V6 petrol, V6 diesel and V8 petrol engines.
• C7 allroad quattro (2012-2018) — Based on the C7 A6 Avant, offered with 3.0-litre V6 petrol and diesel engines and a facelift around 2014-2015.
• C8 allroad quattro (2019-present) — Based on the C8 A6 Avant, with V6 petrol and diesel engines that use mild-hybrid technology.

Typical prices

Asking prices in our listings rise steadily with model year. The median for 2008 cars is €4,700. For 2016 it is €18,000, and for 2023 it is €39,800. The newest model years, such as 2026, sit well above that, with a median of €99,900. Within each year, the spread between the lower and upper quartile reflects mileage, engine, equipment and country of sale. Older cars show a wide spread because condition varies greatly. These are asking prices in our listings on 2026-11-10, not a valuation.

Based on our listings as of 2026-11-10. These are asking prices, not a valuation.

What to check when buying a used Audi A6 Allroad

Ask for the full service history and inspect the car with the suspension at normal ride height. A specialist check is worthwhile on any Allroad, because the drivetrain and suspension are more complex than on a standard estate.

• Air suspension condition · C5, C6 and C7

  Check that the car sits level and reaches normal height after starting. Look for warning messages and listen for a compressor that runs for a long time. Leaking air springs and worn valve blocks are widely discussed on these generations.

• Rust and bodywork · C5 (2000-2005)

  Inspect sills, wheel arches, door bottoms and the tailgate for corrosion. Check the cladding for cracks or poor repairs. Look under the car for damage from off-road use, and note any previous accident repairs.

• Turbos and timing belt · C5 2.7 biturbo petrol

  Ask for proof of timing belt replacement and look for oil leaks around the engine. Check that both turbochargers deliver power smoothly without smoke or whistling. Vacuum hoses and ignition parts on older cars are worth a look.

• Emissions system and records · V6 diesel engines

  Look for regular oil changes and any records of work on the EGR valve, particulate filter or injectors. Warning lights, rough running or reduced power on a test drive are reasons to ask questions before going further.

• Gearbox behaviour · Cars with dual-clutch automatic

  On the test drive, check for smooth pull-away, clean shifts and no judder or warning lights. Ask whether gearbox oil and filter services were done at the intervals Audi specifies for that gearbox.

• Hybrid and LPG systems · Mild-hybrid, plug-in hybrid and LPG cars

  On hybrids, check the charging port, the cable and any warning lights. For LPG, ask for installation records, the tank inspection date and proof of regular servicing by the converting workshop.

• Tyres and quattro drivetrain

  Check that all four tyres are the same make, size and similar wear. Mismatched tyres can stress the four-wheel-drive system. Look for leaks at the differentials and listen for noises from the driveshafts when turning.

Frequently asked questions