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Plan d’maintenance BYD Qin Plus II (facelift 2021)
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📖BYD Qin Plus facelift: mass-market hybrid saloon balancing economy and technology

BYD Qin Plus II (facelift 2021) (2021-2024)

The 2021 facelift established the Qin Plus as one of China's best-selling electrified saloons, offering motorists a choice between high-mileage DM-i plug-in hybrid drivetrains and pure-electric models. Keeping this popular saloon reliable requires structured BYD Qin maintenance, focusing on battery cell balancing and hybrid powertrain servicing.

DM-i models feature a 1.5-litre Xiaoyun engine linked to an electric motor and an EHS transmission, backed by an LFP Blade Battery pack. Pure EV versions rely on a 48 kWh pack driving a compact reduction gearbox, with both variants utilising an active thermal management circuit to protect cell life during summer heat waves.

When inspecting a pre-owned Qin Plus, check whether the 2021-2023 battery consistency recall was carried out via the dealer network. Inspect rear brake discs for surface rust caused by regenerative braking, verify smooth throttle body operation, and test rapid charging stability on high-output public chargers.

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Owner notes

The reassuring points, known weak spots and deadlines you should not let slip.

Reassuring points

Reliability
  • Proven DM-i hybrid system delivering low fuel consumption and smooth urban electric responsiveness.
  • Generous manufacturer traction battery warranty coverage providing peace of mind against cell defects.
  • Over-the-air software capabilities enabling remote ECU and BMS recalibration without workshop visits.
  • Reduced mechanical wear in urban traffic as the combustion engine remains dormant during low-speed cruising.

Chronic weak spots

Keep an eye on
  • Traction battery recall check: verify via VIN that the manufacturer battery pack consistency campaign has been completed.
  • Throttle body carbon deposits: hybrid duty cycles cause throttle butterfly soot build-up; clean every 40,000 km.
  • Engine oil emulsion: run the combustion engine in HEV mode for at least 20 minutes monthly to burn off moisture in the sump.
  • Independent service support: check local parts availability and technician qualifications outside established dealer regions.
  • ADAS and TPMS sensor glitches: verify instrument cluster software to avoid false tyre pressure warning alerts.

Critical deadlines

Do not miss
  • Engine oil and filter renewal: initial service at 3,500 km or 6 months, then every 7,500 km or 12 months with 0W-20 synthetic oil.
  • Spark plug replacement: inspect spark plugs at 45,000 km and renew between 60,000 and 90,000 km.
  • EHS hybrid transmission fluid: inspect fluid level periodically and drain/refill at 60,000 km or 4 years.
  • Brake fluid replacement: flush DOT 4 hydraulic fluid every 40,000 km or 24 months to maintain braking safety.

Fréquences d'maintenance recommandées

Electric powertrains
▾

Service markers for electric versions. Petrol/diesel engine jobs do not apply.

Service

Every 15 000 km

Every 1 year

Check the electrical system

Every 15 000 km

Every 1 year

Traction battery diagnosis

Every 15 000 km

Every 1 year

Battery coolant

Every 120 000 km

Every 10 years

Brake pads

Every 60 000 km

Every 2 years

Freinage régénératif : number platettes préservées, mais faites contrôler la corrosion des disques

Battery (12 V)

Every 50 000 km

Every 4 years

Hybrid powertrains
▾

Service markers for hybrid versions. Oil changes, brakes and system checks need to stay in step.

Oil change

Every 15 000 km

Every 1 year

Service

Every 15 000 km

Every 1 year

Brake pads

Every 40 000 km

Every 2 years

Timing belt / chain

Every 100 000 km

Every 5 years

Battery (12 V)

Every 50 000 km

Every 4 years

Powertrains and average consumption

This generation is available with several powertrains. The consumption figures come from manufacturer data for each version.

Electric powertrains
▾

Fully electric versions. Servicing focuses on the high-voltage system, charging and battery monitoring.

Qin Plus II (facelift 2021)

Hybrid powertrains
▾

HEV, MHEV and PHEV versions. They combine petrol/diesel servicing with hybrid-system checks.

Qin Plus II (facelift 2021)

Estimated average budget

Standard cost

Servicing a BYD Qin Plus II (facelift 2021) sits in line with the market average.

Simple oil change~100 €
Full service~250 €
Front brake pads~90 €
Timing-belt kit~650 €
Tyres (set of 4)~450 €

* Indicative estimates for parts and labour.

Frequently asked questions about BYD Qin Plus II (facelift 2021)

Is servicing the same on every Qin Plus II (facelift 2021) version?▾
No. The Qin Plus II (facelift 2021) is available as petrol/diesel, hybrid or electric depending on the version. The jobs differ by powertrain, especially oil change and timing belt on combustion engines, and battery/electrical-system checks on EVs.
Which service markers apply to an electric Qin Plus II (facelift 2021)?▾
On fully electric versions, plan an electrical-system and traction-battery check around 15,000 km / 1 year, and battery coolant around 120,000 km / 10 years (always confirm with the manufacturer).
What are the common problems on the Qin Plus II (facelift 2021)?▾
Qin Plus II (facelift 2021) owners should especially watch: Traction battery recall check: verify via VIN that the manufacturer battery pack consistency campaign has been completed. Throttle body carbon deposits: hybrid duty cycles cause throttle butterfly soot build-up; clean every 40,000 km. Garajo includes these watch points so you can act early.
How much does it cost to service a BYD Qin Plus II (facelift 2021)?▾
The service budget for a BYD Qin Plus II (facelift 2021) sits in line with the market average. Allow about 250 € for a full service, for example. Garajo estimates your budget by powertrain and tracks what you actually spend, for free.
Which BYD Qin Plus II (facelift 2021) powertrain is best for town use?▾
BYD Qin Plus II (facelift 2021) mix: hybrid : 2 versions ; electric : 2 versions. For mostly urban use, prefer electric versions first, then hybrids (full hybrid / mild hybrid) to keep consumption down in dense traffic.
Which BYD Qin Plus II (facelift 2021) powertrain should you choose if you mostly drive on the motorway?▾
BYD Qin Plus II (facelift 2021) mix: hybrid : 2 versions ; electric : 2 versions. For frequent motorway use, a plug-in hybrid still makes sense if you charge regularly in town; otherwise an equivalent petrol/diesel version is often more coherent.
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