Standard Ignition HZS221 Door Lock Switch

Reliable Door Lock Switch for BMW Models

The Standard Ignition HZS221 door lock switch is designed to provide dependable control over your vehicle's door locking system. Engineered for select BMW models, this switch offers a precise fit and functional performance to maintain your vehicle's electrical integrity.

• Compatible with BMW 320i, 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 330Ci, 330i, 330xi, M3, X5, and Z4 models
• Snap fit attachment method for straightforward installation
• Illuminated switch with window lock controls included
• Durable construction using plastic, brass, and rubber materials
• 12-volt operation with six male pin terminals and one female rectangular connector
• Includes two switches in one unit, no additional hardware or wiring harness included

Product Features and Specifications

The HZS221 door lock switch from Standard Ignition is built with a black plastic housing and brass, rubber, and plastic finishes to ensure durability and resistance to wear. It features a snap fit attachment method, allowing for easy replacement without the need for extra hardware. The switch is illuminated, enhancing visibility in low-light conditions, and includes window lock controls for added convenience. Designed with six male pin terminals and a single female rectangular connector, this 12-volt switch integrates seamlessly with the electrical system of compatible BMW vehicles.

Applications and Problem Solving

• Restores door lock functionality in BMW 3 Series and X5 models
• Replaces faulty or non-illuminated door lock switches
• Resolves issues with window lock controls not responding
• Addresses electrical connection problems due to worn terminals
• Improves switch visibility for safer nighttime operation

Installation Notes and Tips

Installation of the Standard Ignition HZS221 door lock switch is straightforward due to its snap fit design. Ensure the vehicle's battery is disconnected before beginning installation to prevent electrical shorts. Carefully remove the old switch by disengaging the snap fit clips, then align and press the new switch into place until it securely snaps in. Verify the connector orientation matches the female rectangular connector on the vehicle wiring harness. Since no hardware or wiring harness is included, reuse existing components as needed.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. The HZS221 door lock switch undergoes rigorous quality control to maintain consistent electrical and mechanical function. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or the supplier for exact warranty terms.