2021-2026 BYD Ocean Series: Sea Lion 05, Sea Lion 06, Sea Lion 07, Dolphin, Seal, Seal 05, Seal 06, Seal 07, Seagull

Service Manuals & Circuit Diagrams | Wiring Diagrams | Disassembly & Assembly Guides | Maintenance Instructions | ECU Mounting Positions | Sensor Locations | Timing Belts | Timing Chains | Camshaft Sprockets | Crankshaft Sprockets | Cylinder Head | Cylinder Block | Cylinder Head Gasket | Intake Manifold | Exhaust Manifold | Throttle Body | Pistons | Main & Connecting Rod Bearings | Spark Plugs | Ignition Coils | Oil Pumps | Shock Absorbers & Suspension | Steering Gear | Chassis | Interior | Dashboard | Door Panels | Sunroofs | BMS | High-Voltage Battery | VCU | Motor Controller | Battery Pack | On-Board Charger | Air Conditioning Compressor | Fuse & Relay Diagrams | Pin Definitions | Harness Layout | Working Principles

BYD Ocean Network vehicles are increasingly common on the road. The Dolphin, Seagull, Seal and Sea Lion model lines receive frequent updates, with Champion Edition, Honor Edition, Touring Edition and Intelligent Driving Edition boasting different configurations. Many repair shops report that new models launch rapidly, while publicly available repair information cannot keep pace. Especially for the high-voltage tri-power system, technicians hesitate to carry out repairs when facing faults related to batteries, motors and controllers without accurate circuit diagrams and proper service procedures.

There are differences in hardware, heat pump air conditioning and electronic control logic among different variants. Relying solely on repair experience can easily lead to misdiagnosis of fault points. Whether it is routine maintenance, chassis inspection, interior disassembly, or troubleshooting core components such as BMS, VCU and motor controllers, complete documentation is essential for safety.

The Auto Helper Database collects service manuals and circuit diagrams for the full 2021–2026 BYD Ocean Network lineup, covering all mainstream model variants.

Database Contents

▪ Full-vehicle service manuals, complete circuit diagrams, wiring harness layout diagrams, pin definition illustrations ▪ Complete tri-power documentation for BMS, VCU, motor controller, high-voltage battery pack, on-board charger and air conditioning compressor ▪ Disassembly and inspection procedures for timing assemblies, engine intake & exhaust systems, chassis suspension and steering gear ▪ Fuse and relay diagrams, installation instructions for various sensors ▪ Practical disassembly and assembly steps for interior parts including dashboards, door panels and sunroofs

Covered Models

Dolphin, Seagull, Seal EV/DM-i, Seal 05/06/07, Seal 06GT, Sea Lion 05/06/07 EV/DM-i in all configuration versions.

Platform Features

▪ Massive auto repair dataset. One-click vehicle matching via VIN, no more blind document searching ▪ AI intelligent search: quickly locate repair chapters by entering fault descriptions ▪ Hyperlink navigation for reading, accessible on mobile phones and computers, convenient for workshop use ▪ Continuous updates for newly released models; documentation for newly launched vehicles is added to the database promptly

Ideal for general repair shops undertaking new energy vehicle repairs, as well as apprentices studying pure electric and plug-in hybrid vehicle technology. No need to gather scattered drawings from multiple sources. Reduce risks in tri-power maintenance and gain greater confidence during fault diagnosis and disassembly work.

Covered Models

BYD Ocean Network Series

1. 2021-2025 BYD Dolphin (Champion Edition & Honor Edition included) Service Manual & Circuit Diagrams
2. 2023-2025 BYD Seagull Service Manual & Circuit Diagrams
3. 2022-2025 BYD Seal EV (Champion Edition & Honor Edition included) Service Manual & Circuit Diagrams
4. 2024-2025 BYD Seal DM-i (Honor Edition & heat pump A/C models included) Service Manual & Circuit Diagrams
5. 2024-2025 BYD Seal 06 DM-i (Touring Edition included) Service Manual & Circuit Diagrams
6. 2024-2025 BYD Seal 06GT Service Manual & Circuit Diagrams
7. 2025 BYD Seal 05 DM-i Service Manual & Circuit Diagrams
8. 2025 BYD Seal 07 DM-i Service Manual & Circuit Diagrams
9. 2024-2025 BYD Sea Lion 05 DM-i Service Manual & Circuit Diagrams
10. 2025 BYD Sea Lion 05 EV Service Manual & Circuit Diagrams
11. 2024-2025 BYD Sea Lion 07 EV Service Manual & Circuit Diagrams
12. 2025 BYD Sea Lion 06 DM-i Service Manual & Circuit Diagrams
13. 2025 BYD Sea Lion 06 EV Service Manual & Circuit Diagrams
14. 2025 BYD Sea Lion 07 DM-i Service Manual & Circuit Diagrams