2026-05-26
2021-2026 NIO Series Workshop Service Repair Manuals Wiring Diagram
Source: MMX Workshop Manual Database
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Built with an original factory professional repair system, it supports one-click access via hyperlinks for easy operation. The database covers gasoline vehicles, diesel vehicles and new energy vehicles, including over 95% of mainstream car models on the market with an extensive vehicle lineup.
Repair content is updated continuously in real time. It integrates service manuals, full-vehicle circuit diagrams, troubleshooting guides and disassembly & assembly procedures. Ideal for auto repair shop owners, apprentices and professional technicians — no more searching across multiple platforms to maximize repair efficiency.
Covered Models
NIO EC Series
- 2024 NIO EC6 Service Manual & Circuit Diagrams
- 2023 NIO EC6 Service Manual & Circuit Diagrams
- 2024 NIO EC7 Service Manual & Circuit Diagrams
- 2023 NIO EC7 Service Manual & Circuit Diagrams
NIO ES Series
- 2024 NIO ES6 Service Manual & Circuit Diagrams
- 2023 NIO ES6 Service Manual & Circuit Diagrams
- 2024 NIO ES7 Service Manual & Circuit Diagrams
- 2022-2024 NIO ES7 Service Manual & Circuit Diagrams
- 2024-2025 NIO ES8 Service Manual & Circuit Diagrams
- 2023 NIO ES8 Service Manual & Circuit Diagrams
NIO ET Series
- 2024 NIO ET5 Service Manual & Circuit Diagrams
- 2022-2023 NIO ET5 Service Manual & Circuit Diagrams
- 2024 NIO ET5T Service Manual & Circuit Diagrams
- 2022-2024 NIO ET5T Service Manual & Circuit Diagrams
- 2024 NIO ET7 Service Manual & Circuit Diagrams
- 2021-2023 NIO ET7 Service Manual & Circuit Diagrams
2025 NIO ET9 Service Manual & Circuit Diagrams
Coverage of Service Manuals & Circuit Diagrams (New Energy Vehicles)
Power battery pack, battery module, Battery Management System (BMS), drive motor, motor controller, Vehicle Control Unit (VCU), high-voltage distribution box, high-voltage wiring harness, On-Board Charger (OBC), DC-DC converter, PTC heater, electric compressor, DC fast charging port, AC slow charging port, charging gun, thermal management pipeline, cooling water pump, electric cooling fan, heat pump air conditioning, insulation monitoring module, high-voltage interlock device, electric vacuum pump, electric power brake, energy recovery system, electronically controlled suspension, electric power steering gear, low-voltage battery, vehicle gateway, high-voltage fuse, battery cooling plate, battery thermal insulation cotton, motor reducer, electronically controlled water pipe, temperature sensor, battery maintenance cover, motor end cover, electronic control connector.
Also included: Three-electric system disassembly & assembly procedures, high-voltage power on/off procedures, battery disassembly and maintenance, motor overhaul processes, three-electric system fault codes, pin definitions of high-voltage circuits, new energy vehicle fuse box diagrams, relay layout diagrams, routing of high-voltage wiring harnesses, battery equalization calibration, electronic control matching points, vehicle insulation inspection, and body dimension data for sheet metal repair.