Introduction
This manual provides comprehensive instructions for assembling, operating, and maintaining your MOCBROPCS M4 Technic Building Car Set. This 1:10 scale model is a detailed replica of a Champion Racing Car, consisting of 2280 pieces, designed to offer a challenging and rewarding building experience for enthusiasts aged 14 and up.

Figure 1: The MOCBROPCS M4 Technic Building Car Set, showing the assembled model and its packaging.
Safety Information
WARNING: CHOKING HAZARD - Small Parts. This product contains small parts and is not suitable for children under 3 years of age. Adult supervision is recommended during assembly, especially for younger builders. Keep all packaging materials away from children.
What's in the Box
Upon opening the package, please verify that all components are present:
- Instruction Manual
- Assorted Building Blocks (pre-sorted into bags)
If any parts are missing or damaged, please contact customer support.
Setup & Assembly
The MOCBROPCS M4 Technic Building Car Set requires assembly. Follow the detailed step-by-step instructions provided in the included instruction manual. It is recommended to sort the building blocks by type and color before beginning assembly to facilitate the process.

Figure 2: The assembly process is designed to be an engaging activity, suitable for collaborative building.

Figure 3: Key features like the openable front cover, disassemblable tail wing, and functional doors are integrated during assembly.
Each bag of blocks corresponds to specific assembly stages. Do not open all bags at once to avoid mixing pieces. Refer to the manual for the correct sequence of opening bags.
Operating the Model
Once assembled, the MOCBROPCS M4 Technic Building Car is a static display model with several interactive features:
- The front hood can be opened to reveal internal details.
- The side doors are designed to open, allowing a view of the interior cockpit.
- The rear tail wing can be disassembled, offering customization or display options.
- The wheels are free-rolling, allowing the model to be moved on flat surfaces.

Figure 4: The completed model is a substantial 1:10 scale replica, ideal for display.
Maintenance
To ensure the longevity and appearance of your MOCBROPCS M4 Technic Building Car, follow these maintenance guidelines:
- Cleaning: Dust the model regularly with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but avoid excessive moisture. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the model in a cool, dry place away from direct sunlight and extreme temperatures to prevent discoloration or deformation of the plastic components.
- Handling: Handle the model with care, especially when moving it, to prevent parts from detaching.
Troubleshooting
If you encounter any issues during assembly or with the finished model, consider the following common solutions:
- Missing Pieces: Double-check all bags and the assembly area. If a piece is genuinely missing, contact customer support with the part number from the manual.
- Parts Not Fitting: Ensure you are using the correct pieces for the current step. Refer to the manual's illustrations carefully. Sometimes, a slight adjustment in angle or pressure is needed.
- Model Instability: Re-examine the connections in the affected area. Loose connections can lead to instability. Ensure all studs are fully pressed into their corresponding holes.
Specifications
Detailed specifications for the MOCBROPCS M4 Technic Building Car Set:
| Feature | Detail |
|---|---|
| Product Dimensions | 50 x 20.5 x 13 cm (19.6 x 8 x 5.1 inches) |
| Weight | 2.67 Kilograms |
| Recommended Age | 8 years and up (Manufacturer's minimum age: 96 months) |
| Model Number | 022010-1 |
| Number of Pieces | 2280 |
| Material | Plastic |
| Color | Blue |
| Educational Objectives | Building skills, Hand-eye coordination |
| Assembly Required | Yes |
| Batteries Required/Included | No |
| Theme | Vehicles |
| Cartoon Character | BMW M4 |
| Special Feature | Easy to store |

Figure 5: Proportional dimensions of the assembled model.
Warranty & Support
For any inquiries regarding product defects, missing parts, or assembly assistance, please contact MOCBROPCS customer support. While specific warranty details are not provided in this manual, MOCBROPCS is committed to customer satisfaction. Please retain your proof of purchase for any support requests.
For further assistance, please visit the official MOCBROPCS website or contact their customer service department through the retailer where the product was purchased.





