TYC 20-9770-01 Headlight Assembly - Left

Overview of TYC Regular Left Headlight Assembly for Audi A3

The TYC Regular left headlight assembly (part number 20-9770-01) is designed specifically for Audi A3, A3 Sportback e-tron, and S3 models. This headlight assembly features a clear and amber lens with durable plastic construction, providing reliable exterior lighting performance without curve lighting functionality.

• Compatible with Audi A3, A3 Sportback e-tron, and S3
• Part number 20-9770-01 for left side installation
• Clear and amber plastic lens and housing
• Includes front side marker and signal light bulbs (LED and halogen)
• Supports HID bulb types for low and high beams (bulbs not included)
• SAE/DOT compliant for road safety standards

TYC Regular Product Line Details

The TYC Regular product line offers dependable replacement lighting components that meet OEM specifications. This line focuses on providing quality headlight assemblies with essential features such as plastic lens and housing materials, ensuring durability and proper fitment. The 20-9770-01 headlight assembly is part of this line, delivering consistent performance for Audi vehicles without additional curve lighting options.

Detailed Product Description

This left headlight assembly for Audi A3 models includes a clear and amber plastic lens paired with a plastic housing for lightweight yet sturdy construction. It supports HID bulb types for both low beam (HID D3S) and high beam applications, although bulbs and HID ballast are not included. The assembly comes with front side marker and front signal light bulbs installed—LED for the side marker and halogen for the signal light—along with an LED park lamp bulb. Designed without curve lighting, this assembly complies with SAE and DOT standards, ensuring legal and safe use on public roads.

Common Applications and Issues Addressed

• Replacement for damaged or cracked left headlight assembly on Audi A3, A3 Sportback e-tron, and S3
• Restores proper front side marker and signal light functionality
• Improves visibility with HID-compatible low and high beam support
• Maintains vehicle safety compliance with SAE/DOT certification
• Resolves issues related to faded or discolored lenses

Installation Notes and Tips

When installing the TYC Regular 20-9770-01 headlight assembly, ensure compatibility with the left side of Audi A3, A3 Sportback e-tron, and S3 models. Since bulbs are not included for the main beams, source compatible HID D3S bulbs separately. The assembly does not include an HID ballast, so verify your vehicle’s existing ballast is functional or replace as needed. Handle the plastic lens carefully to avoid scratches during installation.

Quality Assurance and Warranty

TYC Regular headlight assemblies are manufactured to meet or exceed OEM standards, providing reliable fit and finish. This product is SAE and DOT compliant, ensuring adherence to safety regulations. Warranty details are provided by TYC and typically cover defects in materials and workmanship, supporting long-term use in Audi A3 and related models.