BYD Song Plus Maintenance Schedule and Service Costs

Introduction: Maintenance Basics in One Paragraph

Song Plus maintenance is unusually cheap by combustion-SUV standards, and the reason is structural: on the DM-i plug-in hybrid, BYD schedules most engine servicing against engine mileage rather than total mileage, and on the EV version the engine disappears from the schedule entirely. In China, the DM-i calls for a first service at 3,500 km of engine mileage or six months, then a service every 5,000 engine-km or twelve months, with minor services widely reported at roughly 350-700 yuan including labor. This guide explains the schedule item by item, what each visit includes, realistic costs, and the extra checks that matter for exported units.

The Key Concept: HEV Mileage, Not Odometer Mileage

DM-i vehicles track two distances: total mileage on the odometer, and engine mileage, labeled HEV mileage in BYD's systems, which accumulates only while the gasoline engine is running. Because a regularly charged Song Plus may cover most of its annual distance in electric mode, its engine may run only a fraction of the time, and the service clock follows that smaller number. An owner who charges daily and drives 15,000 km per year might accumulate only 3,000-5,000 engine-km, effectively servicing the engine about once a year. Two cautions apply: time-based limits still apply regardless of mileage, and export-market schedules are published in miles with different intervals, as shown below.

DM-i Service Schedule: China Market versus Export Market

Published intervals differ between the Chinese domestic schedule and the export schedule used in markets such as Europe, so the correct answer is always the booklet for your specific market and model year. Fifth-generation DM-i models in some markets use longer intervals than earlier cars, which is another reason to check the current handbook rather than forum posts.

Figures are drawn from BYD's owner materials and owner-reported schedules as of 2026; confirm against the handbook for your exact model year before booking, because BYD has been lengthening intervals on newer fifth-generation drivetrains in some markets.

What Each Service Actually Includes

Engine-side items (DM-i only)

The 1.5-liter engine uses low-viscosity oil to the SP or C5 0W-20 specification, and using the specified grade matters for fuel economy and warranty compliance. Engine services rotate oil and the oil filter, inspect the belt and the hybrid-specific cooling circuits, and update the engine control software if a campaign applies. Air, cabin and fuel filters arrive on the larger scheduled visits rather than every service.

Items shared by DM-i and EV

• Battery health check: diagnostic readout of cell balance, capacity trend and insulation resistance.
• Coolant condition check for both the cabin heating circuit and the battery thermal loop.
• Brake fluid moisture test, typically on a two-year cycle in most markets.
• Brake pad and disc measurement; regenerative braking stretches pad life well past combustion-car norms.
• Tire rotation, tread and pressure check; EV-compatible tires wear faster due to weight and torque.
• Air-conditioning performance test and cabin filter replacement on the larger services.
• Charging port inspection and, where fitted, sealing and latch checks on DC pins.
• Software and recall status verification through the diagnostic system.

Service Costs: What Owners Report

In China, owner-reported minor services on the Song Plus DM-i cluster around 350-700 yuan including parts and labor, with larger services adding filters at a moderately higher figure; precise prices vary by city, dealer and model year. Converted and compared, this positions running costs below equivalent combustion crossovers, because the engine consumes few operating hours and the electric drivetrain needs little scheduled replacement. In export markets, labor rates and dealer structures differ, so budgeting should be based on the local distributor's published service plan rather than Chinese prices. For a fleet, the practical approach is to convert the local schedule into a cost-per-vehicle-per-year model with the distributor before purchase, not after.

Song Plus EV: A Shorter Schedule

The EV version removes every engine item: no oil, no spark plugs, no fuel filters. Scheduled work concentrates on battery and thermal-system diagnostics, brake fluid, cabin filter, tires and suspension checks, plus the same software-campaign process. The financial effect is real but often overstated; the EV's higher mass and instant torque mean tires, and occasionally suspension bushings, become the dominant wear items. Owners should still honor time-based battery inspections, because warranty terms on the Blade pack typically require documented periodic checks even when mileage stays low.

Owner Checklist Between Services

• Check tire pressure monthly; correct pressures matter more on a heavy PHEV for range and wear.
• Listen for brake-corrosion noise after long electric-only periods and brake firmly occasionally to clean the discs.
• Keep the charge port clean and report DC pins that overheat or discolor immediately.
• Update the infotainment and vehicle software when prompted, since improvements affect energy management.
• Record HEV mileage monthly so you can predict the next engine service instead of discovering it late.
• Retain every service record; a documented history materially protects resale and export value.

Imported Units: Three Extra Rules

First, imported vehicles may fall outside the official distributor network in some countries, so identify an independent workshop with BYD diagnostic access before the first service is due, not after. Second, the maintenance booklet that ships with a Chinese domestic unit is built around China schedules and Chinese-language records; an export-specified car should come with the destination-market booklet. Third, warranty transferability varies by market, and some battery warranties require servicing inside the authorized network, which should be confirmed in writing before the purchase is finalized. AutoCN's sourcing team can help verify which documentation and service arrangements apply to a specific destination.

FAQ

How often does a BYD Song Plus DM-i need servicing?

On the China schedule, the first service falls at 3,500 km of engine mileage or six months, and subsequent services at every 5,000 engine-km or twelve months, whichever comes first. Because intervals run on engine mileage rather than odometer mileage, owners who charge frequently may only visit the workshop about once a year. Export-market Seal U DM-i models use mile-based intervals such as 12,500 miles first and 7,500 miles thereafter.

What does Song Plus maintenance cost per year?

Owner reports from China put a minor DM-i service at roughly 350-700 yuan including labor, with larger services adding filters at a higher figure. A typical owner who services annually therefore faces low three-digit euro or dollar equivalents, well below combustion-crossover norms. Export-market costs depend on local labor rates and the distributor's service plans, so fleets should obtain local pricing before purchase.

Why is the schedule based on HEV mileage?

HEV mileage counts only the distance driven with the gasoline engine running. Because the DM-i runs as an electric car for much of its daily use, engine wear accumulates more slowly than the odometer suggests, and oil life follows engine running rather than total distance. Time limits still apply, so a low-mileage car is not exempt from annual attention.

Does the Song Plus EV need less maintenance than the DM-i?

Yes, in scheduled items: there is no engine oil, no filters for fuel or intake, and no belts. Remaining work covers battery diagnostics, coolant checks, brake fluid, cabin filter and tires. EV mass and torque shift the cost center toward tires, so budget for more frequent tire replacement than on a comparable petrol car.

What oil does the Song Plus DM-i use?

BYD specifies low-viscosity engine oil meeting the SP or C5 0W-20 specification for the 1.5-liter engine in the DM-i system. Using the specified grade supports the engine's efficiency and keeps warranty terms intact, so confirm the spec printed in your handbook and use it at every change, including at independent workshops.

Do I need dealer servicing to keep the battery warranty?

It depends on the market. Some BYD battery warranties require documented periodic battery inspections within the authorized network, while others accept certified independent records. Because terms are set by the regional distributor and change over time, request the current warranty conditions in writing for your destination market before delivery, and archive every service record from day one.

Conclusion

The Song Plus keeps its running costs low through design rather than discounting: a hybrid engine that accrues service intervals only when it runs, an electric drivetrain with almost no scheduled replacement parts, and regenerative braking that preserves pads. The schedule to follow is the one printed for your market and model year, and the two disciplines that pay are recording engine mileage and keeping complete service history. For importers, settling the service network and warranty documentation before shipment is what converts low theoretical maintenance costs into low actual ones.

Comparing ownership costs across Chinese SUVs? AutoCN's maintenance library covers service topics model by model, and the sourcing team can help confirm destination-market service arrangements before you order.