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Photo: Alexander-93, CC BY-SA 4.0, via Wikimedia Commons

Used BYD Seal 6 DM-i I: reliability, problems and review

Family car · since 2025 · Hybrid

✓ 5 sources cited · updated on 27 October 2026

Buy with care
Reliability
not rated
Estimated monthly cost
€671/month
Indicative prices
€37,740 – €37,900

Recent model: not enough hindsight yet (years, mileage) for faults to be publicly documented, so reliability is not rated. This is no guarantee: have the car checked all the more carefully before buying.

0 known faults

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

Photo: Alexander-93, CC BY-SA 4.0, via Wikimedia Commons

Photo 1 of 3

BYD Seal 6 DM-i I, front three-quarter view

Photo: Alexander-93, CC BY-SA 4.0, via Wikimedia Commons

Verdict

Buy with care

Berline et break hybrides rechargeables livrés en France depuis fin 2025, classés 5 étoiles à l'Euro NCAP (92 % protection adultes). Le recul est très faible : aucune panne ni aucun rappel documenté n'a été trouvé, mais les retours publiés manquent. Visez la version 212 ch, qui annonce 100 à 105 km d'autonomie électrique, et vérifiez l'état de la batterie et de la garantie.

Reliability
not rated
Indicative prices
€37,740 – €37,900
Monthly cost
€671
Euro NCAP
5/5

Which version to choose

Versions to favour: Seal 6 DM-i 212 ch.

  • Seal 6 DM-i 184 ch

    Hybrid · Automatic · 184 hp · 4.8 L/100 km · Crit'Air 1

    Hybride rechargeable Boost : 1.5 essence et batterie LFP de 10,08 kWh, 184 ch cumulés, 55 km d'autonomie électrique WLTP en berline (50 km en Touring). Consommation WLTP de 4,8 l/100 km en Touring (autotijd.be).

  • Seal 6 DM-i 212 ch

    ✓ Recommended

    Hybrid · Automatic · 212 hp · 5.0 L/100 km · Crit'Air 1

    Finitions Comfort Lite et Comfort : batterie de 19 kWh, 212 ch cumulés, 105 km d'autonomie électrique en berline (100 km en Touring). Consommation WLTP de 5,0 l/100 km en Touring (autotijd.be).

Market prices

€37,740 – €37,900

Indicative range: 2025 à 2026, médianes par année de 27 annonces en ligne relevées par AutoUncle (années d'au moins 3 annonces).

Collected on 28 October 2026 from the sources below. Our own survey of listings, by year and mileage, will refine it.

Importing this model

Prices abroad

Not enough listings collected yet in Germany, Belgium, Spain, Italy or the United Kingdom for this model.

You are importing the car to:

Import penalty (malus) in France

  • 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

Recent model: not enough hindsight yet (years, mileage) for faults to be publicly documented, so reliability is not rated. This is no guarantee: have the car checked all the more carefully before buying.

Manufacturer recalls

See the official list on RappelConso (new tab) (French government recall site: category “Automobiles et moyens de déplacement”, search “BYD Seal 6 DM-i”). A dealer for the brand can also check, using the vehicle identification number (VIN), that recalls have been carried out.

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€123
Insurance€120
Maintenance€49
Depreciation€379
Total per month€671

⚠ Estimates to treat with caution

  • Insurance: average for a closely related model (other generation or same platform).
  • Maintenance: budget of a closely related model.
  • Maintenance: published servicing price plus an estimated allowance for tyres and brakes.
  • Depreciation estimated at 12% of the median price a year, as no year-by-year valuation is usable.
Calculation details (12,000 km a year)
Fuel (petrol)€123

Seal 6 DM-i 212 ch version: combined consumption of 5 L/100 km, increased by 15% for real-world driving, at 2.14 €/L, for 1,000 km a month.

5 × 1.15 × 2.14 € × 10 = €123

Petrol price (SP95-E10): French national average on 7 October 2026.

Insurance€120

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

Depreciation€379

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

  • Identifier la batterie : 10,08 kWh (Boost, 184 ch) ou 19 kWh (Comfort, 212 ch), l'autonomie électrique en dépend.
  • Demander l'état de santé de la batterie et la date de fin de garantie constructeur.
  • Faire contrôler par un concessionnaire BYD les campagnes de rappel éventuelles avec le numéro de série.
  • Vérifier le câble de charge et la prise Type 2 fournis, et tester la recharge.
  • Essayer le passage entre modes électrique et thermique, et les aides à la conduite.

Questions to ask the seller

  • S'agit-il de la version 184 ch (Boost) ou 212 ch (Comfort) ?
  • Y a-t-il eu des mises à jour logicielles ou des interventions sous garantie ?
  • Quelle est la consommation réelle constatée, avec et sans recharge régulière ?

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: Alexander-93, CC BY-SA 4.0

BYD Seal

I · since 2023

Good choice, check first
Price
€38,300 – €40,200
Reliability
4/5
Fuel types
Electric

Photo: Alexander-93, CC BY-SA 4.0

BYD Seal U

I · since 2023

Good choice, check first
Price
€34,000 – €36,500
Reliability
4.5/5
Fuel types
Hybrid, Electric

Photo: M 93, CC BY-SA 3.0 de

Toyota Prius

IV · 2015–2022

Buy with care
Price
€17,500 – €18,900
Reliability
not rated
Fuel types
Hybrid

Photo: Vauxford, CC BY-SA 4.0

Peugeot 508

II · since 2018

Extra caution
Price
€14,990 – €42,990
Reliability
2.5/5
Fuel types
Petrol, Diesel, Hybrid

Photo: Vauxford, CC BY-SA 4.0

Škoda Superb

III · 2015–2024

Buy with care
Price
€8,900 – €33,200
Reliability
3.5/5
Fuel types
Petrol, Diesel, Hybrid

Photo: Alexander-93, CC BY-SA 4.0

Volkswagen Passat

B9 · since 2024

Good choice, check first
Price
€39,890 – €57,876
Reliability
4/5
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 BYD Seal 6 DM-i I (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

La BYD Seal 6 DM-i est-elle sûre ?

Euro NCAP lui a attribué 5 étoiles fin 2025, avec 92 % en protection des adultes et 90 % en protection des enfants, pour la berline comme pour le break Touring.

Quelle autonomie électrique pour la Seal 6 DM-i ?

55 km WLTP pour la Boost 184 ch (50 km en Touring), jusqu'à 105 km pour la Comfort 212 ch (100 km en Touring), d'après Lesvoitures.fr.

Quel est le volume de coffre de la Seal 6 DM-i ?

491 à 1 370 litres pour la berline, 500 à 1 535 litres pour le break Touring, selon Lesvoitures.fr.

Found a listing?

Soon, we will analyse your BYD Seal 6 DM-i listing: price, mileage, watch points.

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