1. Introduction
This manual provides detailed instructions for the safe and efficient operation, maintenance, and troubleshooting of your GoolRC WLtoys 124019 RC Car. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

Figure 1: GoolRC WLtoys 124019 RC Car.
2. What's in the Box
Verify that all items listed below are included in your package:
- RC car
- Remote controller
- Battery
- Charging cable
- Cross socket wrench
- User manual

Figure 2: Package contents including RC car, remote, battery, charger, wrench, and manual.
3. Key Features
- High-Speed Performance: Equipped with a powerful magnetic motor, achieving speeds up to 60km/h.
- 2.4G Remote Control Frequency: 2.4GHz radio system for anti-jamming capability, allowing multiple cars to race simultaneously. Control distance up to 100 meters.
- Durable Construction: Features a high-strength aluminum alloy chassis, zinc alloy gears for wear resistance, and aluminum alloy shock towers for stability and long service life.
- All-Terrain Capability: Hardware hydraulic shock absorbers adapt to various terrains, providing strong power torque for difficult maneuvers on sand, snow, grass, mountain, and rock roads.

Figure 3: Detailed view of the RC car's components, including rubber tires, shock absorbers, 7.4V 2200mAh battery, servo, 60A 3IN1 ESC, brushed motor, aluminum alloy chassis, and aluminum alloy shock tower.

Figure 4: The RC car demonstrating its all-terrain capabilities on sand, mud, rock, and general off-road conditions.
4. Setup
4.1. Battery Installation and Charging
- Charge the Battery: Connect the provided battery to the charging cable, then plug the charging cable into a suitable USB power source. Ensure the battery is fully charged before first use. The charging indicator will typically change color or turn off when charging is complete.
- Install the Battery: Open the battery compartment on the RC car. Carefully insert the charged battery, ensuring the connectors are properly aligned and secured. Close the battery compartment.
4.2. Remote Controller Setup
- Install AA Batteries: Open the battery cover on the remote controller. Insert 4 AA batteries (not included), observing the correct polarity. Close the battery cover.
- Power On: Turn on the remote controller using the POWER ON/OFF switch. The power indicator light should illuminate.
- Pairing: Turn on the RC car. The car and remote controller should automatically pair. If pairing fails, turn both devices off and on again.

Figure 5: The 2.4GHz remote controller, showing the power indicator, power on/off switch, mode button, steer wheel, steering trim, speed trim, and forward/backward controls. Requires 4 AA batteries.
5. Operating Instructions
5.1. Basic Controls
- Forward/Backward: Use the trigger on the remote controller to move the car forward or backward.
- Steering: Use the steer wheel to turn the car left or right.
5.2. Adjustments
- Steering Trim: If the car does not drive straight, use the steering trim dial on the remote to adjust it.
- Speed Trim: Adjust the speed trim dial to control the maximum speed of the car. This is useful for beginners or for operating in confined spaces.
5.3. Driving Tips
- Always operate the RC car in open areas free from obstacles, people, and pets.
- Avoid driving in deep water or extremely wet conditions to prevent damage to electronic components.
- Practice at lower speeds initially to familiarize yourself with the controls.
- The car is designed for off-road use. Driving on hard surfaces like asphalt for extended periods may cause excessive tire wear.
Video 1: Demonstration of the GoolRC WLtoys 124019 RC Car's performance and handling in desert conditions. This video showcases the car's speed, jumping capabilities, and ability to navigate sand dunes.
6. Maintenance
6.1. General Care
- After each use, clean the car to remove dirt, dust, and debris. Use a soft brush or compressed air.
- Inspect the wheels, suspension, and chassis for any damage or loose parts. Tighten screws as needed.
- Store the car and remote controller in a cool, dry place away from direct sunlight and extreme temperatures.
6.2. Battery Care
- Always disconnect the battery from the car when not in use.
- Do not overcharge or over-discharge the battery. Follow charging instructions carefully.
- If storing for an extended period, charge the battery to approximately 50% capacity.
6.3. Gear and Shock Absorber Maintenance
- Regularly check the zinc alloy gears for wear and lubricate them with appropriate RC gear grease to ensure smooth operation and prevent premature wear.
- Inspect the hydraulic shock absorbers for leaks or damage. Ensure they are functioning correctly to maintain optimal suspension performance.

Figure 6: Exploded view diagram of the zinc alloy gear assembly, illustrating its components for maintenance and replacement.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Car does not respond to remote. | Low battery in car or remote; Not paired; Power switch off. | Charge car battery; Replace remote batteries; Ensure both power switches are ON; Re-pair car and remote. |
| Car drives slowly or lacks power. | Low car battery; Motor or gear issue; Speed trim set too low. | Recharge car battery; Inspect motor/gears for damage/debris; Adjust speed trim on remote. |
| Car does not drive straight. | Steering trim misaligned; Damaged steering components. | Adjust steering trim on remote; Inspect steering servo and linkages for damage. |
| Unusual noise during operation. | Debris in gears; Worn gears; Motor issue. | Clean gears; Replace worn gears; Contact support if motor issue persists. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 124019 |
| Scale | 1/12 |
| Max Speed | Up to 60km/h |
| Remote Control Frequency | 2.4GHz |
| Control Distance | Up to 100 meters |
| Chassis Material | Aluminum Alloy |
| Gear Material | Zinc Alloy |
| Shock Absorbers | Hardware Hydraulic |
| Recommended Age | 16 years and up |
| Item Weight | 4.25 pounds |
| Package Dimensions | 18.1 x 9 x 5.5 inches |
9. Warranty
GoolRC provides a warranty for this product. If you encounter any problems or defects, please contact our customer support team within the warranty period for assistance. The warranty covers manufacturing defects and issues arising from normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper maintenance.
10. Customer Support
For technical assistance, troubleshooting, or warranty claims, please contact GoolRC customer support:
- Online: Visit the official GoolRC store on Amazon: GoolRC Store
- Email: Refer to the contact information provided in the physical user manual included with your product.
When contacting support, please have your product model number (124019) and purchase details ready.




