Audi A3 S3 8V Left Matrix LED DRL Module 8V0998473B B011784-A

Audi A3 / S3 8V Left Matrix LED DRL Module - 8V0998473B / B011784-A

Replace the white daytime running light LED assembly in a compatible Audi A3 / S3 8V Matrix LED headlight with this HIDS-DIRECT module. This is the left-hand B-version, supplied with LED circuit board, two-pin connector, cast metal housing and perimeter seal. The photographed board has three white-light LED packages in a triangular arrangement.

Key Features

• OE replacement reference: 8V0998473B
• Board marking: B011784-A / LEFT / DRL-T
• White daytime running light function
• Three white-light LEDs in a triangular configuration
• Two-pin connector, as pictured
• Cast metal housing with perimeter seal
• Dimensions: 85 × 55 × 40 mm — length × width × depth

Technical Specifications

Vehicle Compatibility & Headlight Checks

Expand the sections below for the application and original-part checks.

Installation & Fault Diagnosis

Professional installation is recommended. Diagnose the fault and inspect the light guide, connector, wiring and headlight for moisture before replacing the assembly. A damaged or discoloured light guide can leave the DRL dim or yellow after replacement. Follow the vehicle-specific workshop procedure for mounting, sealing and heat transfer. Diagnostic checks or vehicle-specific setup may be required.

What’s Included

One HIDS-DIRECT left-hand module assembly with LED board, two-pin connector, cast metal housing and perimeter seal, as pictured. Complete headlight, other lighting control units and vehicle wiring are not included.

For fitment help, provide your original module reference and clear photographs of its board, connector and headlight label.

Frequently Asked Questions

Which headlight type does 8V0998473B fit?

This left-hand white DRL module is for the matching Audi A3 / S3 8V Matrix LED headlight. Match the complete 8V0998473B reference, B011784-A board, two-pin connector, triangular three-LED layout and mounting points. It does not replace the xenon/bi-xenon or standard non-Matrix LED version.

Which vehicles and years are listed?

The stated application is Audi A3 / S3 8V facelift 2017–2020 with the matching Matrix LED headlight and original 8V0998473B module. Sportback and Saloon/Sedan fitment requires the same checks. Model and year alone do not confirm compatibility.

Does this module include the amber indicator function?

No amber indicator LEDs are present on this photographed board. It contains three white-light LED packages and is supplied as the white daytime running light module. It is not the eight-pin DRL and amber turn-signal A-version assembly.

Which side does it fit?

Front left, viewed from inside the vehicle facing forwards. On UK right-hand-drive vehicles this is the passenger side / nearside. The board is marked LEFT. The right-hand B-version is 8V0998474B / B011785-A; left and right modules are not interchangeable.

What are the dimensions and what is included?

Dimensions are length 85 mm × width 55 mm × depth 40 mm. One left-hand module assembly is supplied with LED board, two-pin connector, cast metal housing and perimeter seal, as pictured. The complete headlight and vehicle wiring are not included.

Will replacing the module fix every DRL fault?

A failed module can cause a dim, flickering or non-working DRL. Moisture, damaged or discoloured light guides, connector faults and wiring faults can produce similar symptoms. Diagnose the fault and follow the vehicle-specific workshop procedure before fitting. Coding-free installation is not guaranteed.