Restore reliability to your E9x Headlights with ECS Tuning’s Premium Replacement Harness Kit.

Headlight electrical issues are a common headache for many E9x owners. Over time, the factory wiring inside Pre-LCI BMW E92 and E93 3 Series headlights, as well as all E9x M3 models equipped with factory Xenon adaptive lighting, tends to become brittle and crack. This well-known problem can lead to flickering lights, adaptive headlight malfunction warnings, or even internal shorts that cause costly damage. With genuine Xenon headlights becoming increasingly scarce, maintaining them has never been more important.

ECS Tuning offers a long-lasting solution with its Headlight Wiring Harness Repair Kit, engineered specifically to eliminate this failure point. Each harness is built from modern, heat-resistant materials and fitted with pre-terminated, OEM-style connectors for a clean, straightforward installation. The result is improved reliability and restored confidence in your lighting system.

Don’t wait until your lights fail or an adaptive headlight error appears. Replace your deteriorating factory harness with ECS Tuning’s upgraded repair kit and keep your lighting system performing as it should.

Key Features

Designed for Xenon Adaptive Headlights

OE-style fitment with enhanced insulation to resist cracking and heat damage

Complete set includes both left and right harnesses, plus integrated jump wire for full functionality

Detailed installation instructions provided for easy DIY installation

Fitment & compatibility:

All E90, E92, E93 M3
E92 Pre-LCI 328i, 328xi, 335i
E92 Pre-LCI 328i, 335i
Kit Contents:

Two headlight wiring harnesses (complete both left and right)
5x - heat shrink sleeves
18x - 22-24 gauge butt connectors
Product Development:

This headlight repair harness was developed, engineered, and quality-tested by ECS Tuning’s in-house Research & Development team. Every detail reflects ECS’s commitment to precision and durability, utilizing advanced tools and technology, including FARO laser scanning, SolidWorks 3D CAD modeling, in-house 3D printing for rapid prototyping, and long-term performance testing.

Installation & Support:

ECS Tuning provides a comprehensive installation guide that covers the entire process, from opening your OEM headlights to installing the new harness.

BMW E39 Headlight Lens Cover Set

Revitalize your BMW's appearance with the BMW E39 Headlight Lens Cover Set. If your headlights are showing signs of wear such as yellowing, fading, cracking, or fogging, it's time for a refresh. Exposure to the elements, road debris, UV damage, and heat can all contribute to the deterioration of your plastic headlight lenses. Luckily, replacement is simple, and the difference in appearance can be instantly noticeable.

Benefits:

• Restores clarity and brightness to your headlights
• Enhances visibility for safer driving
• Improves the overall aesthetics of your vehicle

Say goodbye to dull, worn-out headlights and hello to a sleek, like-new look with the BMW E39 Headlight Lens Cover Set.

Restore Reliability to Your E9x Headlights with ECS Tuning’s Premium Replacement Harness

Headlight electrical issues are a common headache for many E9x owners. Over time, the factory wiring inside Pre-LCI BMW E92 and E93 3 Series headlights—as well as all E9x M3 models equipped with factory Xenon adaptive lighting—tends to become brittle and crack. This well-known problem can lead to flickering lights, adaptive headlight malfunction warnings, or even internal shorts that cause costly damage. With genuine Xenon headlights becoming increasingly scarce, maintaining them has never been more important.

ECS Tuning offers a long-lasting solution with its Headlight Wiring Harness Repair Kit, engineered specifically to eliminate this failure point. Each harness is built from modern, heat-resistant materials and fitted with pre-terminated, OEM-style connectors for a clean, straightforward installation. The result is improved reliability and restored confidence in your lighting system.

Don’t wait until your lights fail or an adaptive headlight error appears. Replace your deteriorating factory harness with ECS Tuning’s upgraded repair kit and keep your lighting system performing as it should.

Key Features

Designed for Xenon Adaptive Headlights

OE-style fitment with enhanced insulation to resist cracking and heat damage

Complete set includes both left and right harnesses, plus integrated jump wire for full functionality

Detailed installation instructions provided for easy DIY installation

Fitment & compatibility:

All E90, E92, E93 M3 E92 Pre-LCI 328i, 328xi, 335i E92 Pre-LCI 328i, 335i Kit Contents:

One headlight repair harness (Fits left or right) 3x - heat shrink sleeves 9x - 22-24 gauge butt connectors Product Development:

This headlight repair harness was developed, engineered, and quality-tested by ECS Tuning’s in-house Research & Development team. Every detail reflects ECS’s commitment to precision and durability, utilizing advanced tools and technology, including FARO laser scanning, SolidWorks 3D CAD modeling, in-house 3D printing for rapid prototyping, and long-term performance testing.

Installation & Support:

ECS Tuning provides a comprehensive installation guide that covers the entire process, from opening your OEM headlights to installing the new harness.

- CLICK HERE FOR INSTALLATION INSTRUCTIONS -