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Photo: Damian B Oh, CC BY-SA 4.0, via Wikimedia Commons

Used Audi Q8 I (4MN): reliability, problems and review

SUV · since 2018 · Petrol, Diesel, Hybrid

✓ 5 sources cited · updated on 21 October 2026

Good choice, check first
Reliability
5.0/5
Indicative score: faults cited by a single source
Estimated monthly cost
€898/month
Indicative prices
€44,990 – €138,990

1 known fault

This guide has not been translated yet: it is shown in its original French version.

Photo: Damian B Oh, CC BY-SA 4.0, via Wikimedia Commons

Photo 1 of 4

Audi Q8 I (4MN), front three-quarter view

Photo: Damian B Oh, CC BY-SA 4.0, via Wikimedia Commons

Verdict

Good choice, check first

Grand SUV coupé 5 étoiles Euro NCAP (2019), coffre de 605 litres, 5 places. Les retours publiés sur sa fiabilité manquent : un seul avis Caradisiac détaille des pannes d'électronique (sur une version hybride rechargeable), les autres avis sont positifs (17,1/20 sur 5 avis). Le budget d'entretien et d'assurance reste élevé : exigez un historique Audi complet.

Reliability
5.0/5
Indicative prices
€44,990 – €138,990
Monthly cost
€898
Euro NCAP
5/5

Which version to choose

Versions to favour: 50 TDI 286.

  • 50 TDI 286

    ✓ Recommended

    Diesel · Automatic · 286 hp · 6.8 L/100 km · 157 g CO₂/km · Crit'Air 2

    V6 diesel micro-hybride de 286 ch, boîte tiptronic à 8 rapports, quattro (fiche L'argus : 6,8 l/100 km, 157 g/km).

    Engine: Audi / Volkswagen 3.0 V6 TDI

    Verdict on this engine: Extra caution

  • 55 TFSI 340

    Petrol · Automatic · 340 hp · 9.1 L/100 km · 193 g CO₂/km · Crit'Air 1

    V6 essence micro-hybride de 340 ch, boîte tiptronic à 8 rapports, quattro (fiche L'argus : 9,1 l/100 km, 193 g/km).

  • 60 TFSI e 462

    Hybrid · Automatic · 462 hp · Crit'Air 1

    Hybride rechargeable de 462 ch, boîte tiptronic, quattro (avis Caradisiac, version Competition 2021).

Market prices

€44,990 – €138,990

Indicative range: 2018 à 2026, médianes par année de 250 annonces en ligne relevées par AutoUncle (années d'au moins 3 annonces).

Collected on 29 October 2026 from the sources below. Our own survey of listings, by year and mileage, will refine it.

Prices stable since the 28 October 2026 survey.

Valuation by year

Median of online listings per model year (years with at least 3 listings), collected on 29 October 2026.

YearMedian valueListings
2018€44,99014
2019€47,99033
2020€97,90027
2021€56,45034
2022€69,68919
2023€69,89556
2024€86,95035
2025€84,98025
2026€138,9907

Detailed Audi Q8 I (4MN) value: price by year and abroad →

Free valuation of another model →

Importing this model

Prices abroad

Yearly medians of each country's listings (AutoScout24, in euros; United Kingdom: cinch dealer, in pounds), over years with at least 3 listings. Useful to judge an import (add transport, inspection and registration).

CountryRangeMedianGap vs FranceListings
France€44,990 – €138,990 (2018 to 2026)€71,996——
Germany€43,720 – €86,990 (2018 to 2026)€52,485-27 %400
Belgium€42,225 – €111,464 (2019 to 2026)€62,500—61
Spain€40,290 – €89,450 (2018 to 2026)€55,695-23 %206
Italy€40,850 – €88,245 (2018 to 2026)€50,882-29 %400
United Kingdom£42,300 – £59,670 (2023 to 2025)£47,195—6

Median gap shown only when the country's estimate covers the same years as the French one. Add transport, roadworthiness test and registration.

You are importing the car to:

Import penalty (malus) in France

  • Emissions of the versions in this guide: 157 to 193 g CO₂/km (check the value on the car's registration certificate).
  • The CO₂ malus follows the scale of the year the vehicle was first registered, in France or abroad (WLTP or NEDC scale depending on its registration certificate).
  • For an imported used car, it is reduced by a flat-rate discount based on its age in months (scheme in force since 1 March 2025). The weight malus also applies on first registration in France.
  • The malus is zero for a car more than fifteen years old or first registered before 1 January 2015.

Source: BOFiP (French tax doctrine), CO₂ and weight malus · CO2 malus and weight malus: imported used car in France

Check an imported car's history

HistoVec only covers the vehicle's life in France. For a car coming from abroad, a VIN-based report helps spot inconsistent mileage or a reported accident.

Check the car's history: 20% off → (new tab)Partner link

Known faults

Note: some faults below are cited by a single source only. They are still to be confirmed and the reliability score is only indicative.

Électronique : calculateur MMI, vitres, attelage, trappe de charge

Severity 1/3 · Annoying

Un propriétaire d'un Q8 60 TFSI e Competition 2021 décrit une très mauvaise fiabilité de l'électronique (calculateur central derrière le MMI, vitres, attelage électrique, servomoteur de trappe de charge), avec des défauts récurrents malgré les passages au SAV. Avis unique : les autres avis Caradisiac ne signalent pas de souci.

Single source so far: to be confirmed.

Versions
60 TFSI e 462
Onset
not documented
Repair
not documented

All faults by version and mileage →

Manufacturer recalls

See the official list on RappelConso (new tab) (French government recall site: category “Automobiles et moyens de déplacement”, search “Audi Q8”). A dealer for the brand can also check, using the vehicle identification number (VIN), that recalls have been carried out.

Recalls published in France (RappelConso)

  • 27 August 2026 — Le produit présente un défaut dans la boucle et l'ancrage de la ceinture de sécurité, ce qui peut entraîner un effet de retenue insuffisant de la ceinture de sécurité, augmentant le risque de blessures, en particulier pour les passagers des sièges avant. Official notice
  • 16 June 2026 — Une couture de soudage défectueuse sur le cadre arrière du siège avant peut se casser en cas d’accident. En conséquence, la personne assise dans le siège peut se heurter à la tête sur le pilier b, augmentant ainsi le risque de blessure. Official notice
  • 7 November 2025 — Les modules cellulaires de la batterie haute tension peuvent surchauffer pendant la charge, ce qui peut entraîner un incendie. Official notice
  • 3 June 2025 — L’airbag latéral est insuffisamment fixé sur le côté avant gauche du cadre du siège. En conséquence, il peut ne pas être en mesure de se déployer correctement en cas d’accident, ce qui augmente le risque de blessure pour les occupants. Official notice
  • 5 December 2022 — Des capteurs de choc défectueux pour les systèmes de retenue des coussins gonflables peuvent avoir été installés dans les deux portes avant. Cela pourrait nuire à l’effet protecteur des coussins gonflables latéraux, des coussins gonflables de la tête et/ou des tendeurs de ceinture, augmentant ainsi le risque de blessures en cas d’accident. Official notice

All Audi recalls →

Real monthly cost

Fuel, insurance, maintenance and depreciation, excluding finance. Move the slider to match your mileage. How it is calculated

Monthly cost by item
Fuel or electricity€184
Insurance€195
Maintenance€24
Depreciation€495
Total per month€898

⚠ Estimates to treat with caution

  • Maintenance: published servicing price plus an estimated allowance for tyres and brakes.
Calculation details (12,000 km a year)
Fuel (diesel)€184

50 TDI 286 version: combined consumption of 6.8 L/100 km, increased by 15% for real-world driving, at 2.347 €/L, for 1,000 km a month.

6.8 × 1.15 × 2.347 € × 10 = €184

Diesel price: French national average on 7 October 2026.

Insurance€195

Average monthly premium published for this model by insurance comparison sites (comprehensive cover when stated). Your premium depends on your profile.

Depreciation€495

Value lost in a year by a typical example, from the average drop in valuation per year of age (yearly medians of listings), per month.

Inspection checklist

Things to check

  • Faire vérifier au numéro de série, chez Audi, les campagnes de rappel en cours.
  • Tester le MMI, les vitres, le hayon, l'attelage électrique et la trappe de charge sur l'hybride rechargeable.
  • Contrôler l'état de la suspension et des pneus (voiture lourde et grandes jantes).
  • Demander les factures d'entretien Audi et le détail des options.
  • Prévoir le budget d'assurance et de carburant : la consommation mixte annoncée va de 6,8 à 9,1 l/100 km.

Questions to ask the seller

  • Des campagnes de rappel ont-elles été effectuées sur cette voiture ?
  • L'électronique (MMI, vitres, hayon) a-t-elle déjà été réparée ?
  • L'entretien a-t-il toujours été fait dans le réseau Audi ?

Test-drive tip: read the fault codes

A warning light that is off proves nothing: a fault may have been cleared just before the viewing. A Bluetooth OBD2 scanner, plugged in under the steering wheel and read on your phone, shows stored codes and whether all emissions readiness tests have run since the last reset.

See OBD2 scanners on Amazon → (new tab)Partner link

Electric or hybrid equivalent

No direct electric or hybrid equivalent in our guides. Simulate combustion vs electric cost

Alternatives

Photo: Vauxford, CC BY-SA 4.0

Volkswagen Touareg

III · since 2018

Good choice, check first
Price
€30,000 – €63,200
Reliability
4/5
Fuel types
Diesel, Hybrid

Photo: Damian B Oh, CC BY-SA 4.0

Land Rover Range Rover Sport

III · since 2022

Buy with care
Price
€97,500 – €139,200
Reliability
not rated
Fuel types
Petrol, Diesel, Hybrid

Photo: Vauxford, CC BY-SA 4.0

BMW X3

III (G01) · 2017–2024

Buy with care
Price
€26,950 – €35,990
Reliability
not rated
Fuel types
Petrol, Diesel, Hybrid

Before you buy: check and equip

Check the history

Before paying, check the administrative status (lien, objection, declared claims) and the mileage recorded at the roadworthiness test.

Read fault codes

An OBD scanner plugged in under the steering wheel shows stored fault codes, even with warning lights off: useful during the test drive.

Parts and maintenance

Compare prices of parts for the Audi Q8 I (4MN) (timing, brakes, filters) to estimate the repairs to plan for.

Insure the car

Insurance prices vary widely from one model to another: get a quote before signing.

Frequently asked questions

L'Audi Q8 est-il sûr ?

Il a obtenu 5 étoiles à Euro NCAP en 2019, selon Vertu.

Quel est le volume de coffre de l'Audi Q8 ?

605 litres, selon les fiches L'argus des 50 TDI et 55 TFSI.

Combien consomme l'Audi Q8 ?

6,8 l/100 km pour le 50 TDI 286 ch et 9,1 l/100 km pour le 55 TFSI 340 ch, selon L'argus (valeurs d'homologation).

Found a listing?

Soon, we will analyse your Audi Q8 listing: price, mileage, watch points.

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