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Plan d’maintenance BYD Song MAX (facelift 2021)
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📖BYD Song MAX facelift: refined hybrid people carrier engineered for family comfort

BYD Song MAX (facelift 2021) (2021-Présent)

The 2021 facelift revitalised the Song MAX with sharper front styling, an available high-roof camper option and the introduction of BYD's ultra-efficient DM-i hybrid system. Keeping this economical seven-seater roadworthy calls for disciplined BYD Song MAX maintenance, focusing on hybrid system thermals and suspension care.

At the heart of the DM-i version is a 1.5-litre Atkinson-cycle petrol engine coupled with an E-CVT transmission and an LFP Blade Battery pack. Drivetrain simplicity reduces mechanical stress, while a dual-circuit cooling system protects power electronics and passenger cabin climate through an integrated heat pump.

When looking at a used Song MAX facelift, verify that mode transitions from pure electric drive to hybrid running are quiet and seamless. Inspect the rear shock absorbers and bump stops for signs of bottoming out under luggage weight, check tyre wear across both axles, and confirm that all over-the-air firmware updates are current.

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Owner notes

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

Reassuring points

Reliability
  • Frugal DM-i plug-in hybrid powertrain delivering remarkably low fuel consumption for a seven-seat MPV.
  • Safe and durable Blade Battery chemistry providing dependable daily zero-emission school-run range.
  • Spacious family cabin with versatile seating options and improved interior sound deadening.

Chronic weak spots

Keep an eye on
  • Engine oil dilution: ensure the petrol engine runs on longer trips occasionally to clear moisture condensation from the sump.
  • Rear suspension bottoming: inspect rear springs and dampers for sagging if frequently driven with seven occupants.
  • Air conditioning distribution: verify cold air reaches rear seat vents, especially during high ambient summer temperatures.
  • Brake disc corrosion: regenerative braking lightly loads mechanical brakes; make periodic firm stops to clean disc faces.

Critical deadlines

Do not miss
  • First engine oil service: perform running-in oil and filter change at 3,500 km or 6 months.
  • Routine engine oil and filter: renew 0W-20 synthetic engine oil every 10,000 km or 12 months.
  • Brake fluid service: flush DOT 4 hydraulic brake fluid every 40,000 km or 24 months.
  • Hybrid transmission fluid check: inspect E-CVT transmission fluid every 40,000 km; renew at 80,000 km.

Fréquences d'maintenance recommandées

Service markers for petrol/diesel versions. Exact intervals vary by engine and model year.

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

Average consumption from manufacturer data for the versions available in this generation.

Petrol and diesel powertrains
▾

Petrol, diesel or LPG versions. The intervals shown cover the usual mechanical jobs.

Song Max (facelift 2021)

Estimated average budget

Standard cost

Servicing a BYD Song MAX (facelift 2021) sits in line with the market average.

Simple oil change~85 €
Full service~255 €
Front brake pads~90 €
Timing-belt kit~650 €
Tyres (set of 4)~450 €

* Indicative estimates for parts and labour.

Frequently asked questions about BYD Song MAX (facelift 2021)

What are the common problems on the Song MAX (facelift 2021)?▾
Song MAX (facelift 2021) owners should especially watch: Engine oil dilution: ensure the petrol engine runs on longer trips occasionally to clear moisture condensation from the sump. Rear suspension bottoming: inspect rear springs and dampers for sagging if frequently driven with seven occupants. Garajo includes these watch points so you can act early.
When should you change the timing belt on a Song MAX (facelift 2021)?▾
The timing belt is usually replaced every 100,000 km or 5 years on this type of engine.
Where can I find the service book for the BYD Song MAX (facelift 2021)?▾
Garajo offers a free digital service book, always up to date, with reminders and a detailed history for your BYD Song MAX (facelift 2021).
How much does it cost to service a BYD Song MAX (facelift 2021)?▾
The service budget for a BYD Song MAX (facelift 2021) sits in line with the market average. Allow about 255 € for a full service, for example. Garajo estimates your budget by powertrain and tracks what you actually spend, for free.
Which BYD Song MAX (facelift 2021) powertrain is best for town use?▾
This model is only available as petrol/diesel. Fuel mix: 4 petrol versions. In town, prefer the most economical, well-serviced petrol/diesel version.
Which BYD Song MAX (facelift 2021) powertrain should you choose if you mostly drive on the motorway?▾
This model is only available as petrol/diesel. Fuel mix: 4 petrol versions. On the motorway, prefer petrol/diesel versions with the best power-to-consumption compromise.

Compatible engine oil

Which engine oil for BYD Song MAX (facelift 2021)?

These links are limited to the engines of this generation when oil data is available.

Unsure between two viscosities?0W-20 vs 5W-300W-20 vs 0W-305W-30 vs 5W-40
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