1. Product Overview
This manual provides instructions for the AZGIANT Car Trunk Lock Actuator Latch Release Door Lock Motor. This component is designed to replace the original trunk lock actuator motor in compatible vehicles, restoring proper trunk locking and unlocking functionality.
1.1 Compatible Vehicles
- Mercedes-Benz E-Class W211 E320 (2003-2009)
- Mercedes-Benz E-Class W211 E350 (2003-2009)
- Mercedes-Benz E-Class W211 E500 (2003-2009)
Note: The compatible part number for E-Class W211 is A2117400535.
1.2 Product Components
The product consists of a micro DC motor with an integrated worm gear, designed for precise operation within the trunk lock mechanism.


2. Setup and Installation
Installation of this trunk lock actuator motor requires automotive repair knowledge and specialized tools. Professional installation is highly recommended to ensure correct fitment and operation, and to prevent damage to the vehicle or the new part.
2.1 Safety Precautions
- Always disconnect the vehicle's battery before beginning any electrical work.
- Wear appropriate personal protective equipment (PPE), such as gloves and eye protection.
- Ensure the vehicle is securely supported if working underneath or around the trunk area.
- Refer to your vehicle's specific service manual for detailed trunk lock assembly removal and installation procedures.
2.2 General Installation Steps (Consult a professional or vehicle service manual for detailed steps)
- Access the Trunk Lock Assembly: This typically involves removing interior trim panels from the trunk lid.
- Disconnect Electrical Connector: Locate and disconnect the electrical connector from the existing trunk lock actuator.
- Remove Old Actuator: Unbolt or unclip the old trunk lock actuator assembly from the trunk lid.
- Disassemble Actuator (if replacing only the motor): Carefully disassemble the existing actuator housing to access the faulty motor. Note the orientation and position of all components.
- Install New Motor: Replace the old motor with the new AZGIANT motor, ensuring the worm gear and electrical contacts align correctly.
- Reassemble Actuator: Reassemble the actuator housing, ensuring all clips and screws are securely fastened.
- Install New Actuator Assembly: Mount the new or reassembled actuator assembly into the trunk lid.
- Reconnect Electrical Connector: Reconnect the electrical connector to the new actuator.
- Test Functionality: Before reassembling trim, reconnect the battery and test the trunk lock operation using the remote, interior button, and key.
- Reinstall Trim: Once confirmed operational, reinstall all removed trim panels.

3. Operating Instructions
The trunk lock actuator motor operates automatically as part of your vehicle's central locking system. There are no direct user controls for the motor itself.
- Locking/Unlocking: The motor engages to lock or unlock the trunk lid when activated by the vehicle's remote key fob, the interior trunk release button, or the physical key.
- Smooth Operation: A properly functioning actuator motor should provide smooth and consistent locking/unlocking of the trunk.
4. Maintenance
The trunk lock actuator motor is a sealed unit and generally requires no routine maintenance. However, periodic checks of the surrounding components can help ensure longevity and proper function.
- Keep Area Clean: Ensure the trunk lock mechanism and surrounding areas are free from dirt, debris, and moisture.
- Check Connections: Periodically inspect the electrical connector for corrosion or loose connections.
- Lubrication: If accessible, apply a small amount of automotive-grade lubricant to the mechanical latch components (not directly to the motor) to ensure smooth movement.
5. Troubleshooting
If you experience issues with your trunk lock after installing the new motor, consider the following troubleshooting steps:
5.1 Trunk Not Locking/Unlocking
- Check Electrical Connection: Ensure the motor's electrical connector is securely plugged in and free from corrosion.
- Verify Power Supply: Use a multimeter to check for power at the connector when the lock/unlock command is given. If no power, the issue may be with the vehicle's wiring, fuse, or control module.
- Inspect Mechanical Linkages: Ensure all mechanical linkages between the actuator and the latch are properly connected and not obstructed.
- Test Remote/Button: Confirm that the remote key fob and interior trunk release button are functioning correctly for other doors/locks.
5.2 Motor Noise or Intermittent Operation
- Check for Obstructions: Ensure there are no foreign objects interfering with the movement of the lock mechanism or the actuator.
- Verify Actuator Mounting: Confirm the actuator is securely mounted and not loose, which could cause vibrations or improper operation.
- Internal Fault: If all external checks pass, the motor itself may have an internal fault, requiring replacement.
If troubleshooting does not resolve the issue, it is recommended to consult a qualified automotive technician.
6. Specifications
| Feature | Detail |
|---|---|
| Product Type | Car Trunk Lock Actuator Latch Release Door Lock Motor |
| Brand | AZGIANT |
| Model Numbers | 22003580; 1020360 |
| Compatible Part Number | A2117400535 (for Benz E-Class W211) |
| Origin | Mainland China |
| Weight (approx.) | 0.05 kg |
| Package Dimensions (approx.) | 8 cm (Length) x 8 cm (Width) x 8 cm (Height) |
7. User Tips
- Verify Compatibility: Always double-check the model numbers and compatible vehicle list against your specific car's make, model, and year before purchasing and installing.
- Professional Installation: Due to the complexity of automotive electrical and mechanical systems, professional installation by a certified mechanic is highly recommended.
- Test Thoroughly: After installation, perform multiple tests of the trunk lock mechanism under various conditions (e.g., with the car running, off, locked, unlocked) to ensure reliable operation.
8. Warranty and Support
For warranty information, technical support, or assistance with your AZGIANT Car Trunk Lock Actuator Motor, please contact the seller or manufacturer directly. Keep your purchase receipt or order details handy for any warranty claims.