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 LED License Plate Bulbs - Pair: Upgrade Your BMW's License Plate Lighting

• Provides brighter and more energy-efficient lighting
• Enhances the appearance of your BMW's license plate
• Easy plug-and-play installation process
• Long-lasting performance for years to come

Upgrade your BMW's license plate lighting with the BMW LED License Plate Bulbs - Pair. These bulbs provide brighter and more energy-efficient lighting for your BMW's license plate, enhancing its appearance and visibility. With an easy plug-and-play installation process, you can quickly upgrade your BMW's lighting without any hassle. Plus, these bulbs offer long-lasting performance, ensuring years of reliable use. Access Secret Premium Dashboard

Upgrade the look and function of your BMW with this direct-fit OEM headlight switch. The stylish chrome accented switch assembly enables your rear fog light option; it even lights up to tell you when your rear fogs are on.

Installation is simple. Add one today and give your vehicle a distinctive, European look.

For vehicles without foglights, with Xenon headlights, and with rain sensor

Genuine European BMW rear fog compatible headlight switch. Switch controls side lights, head lights, front and rear fogs.

For vehicles with fog lights, with Xenon headlights, and with rain sensor.

Over time, road grime, salt, and moisture take a toll on the factory rear leveling rod. The original equipment often corrodes, seizes, and eventually snaps—or worse, binds up and breaks your expensive headlight leveling sensor. With this issue in mind, ECS has engineered a heavy-duty, bulletproof solution designed to outlast the car it’s installed on.

Instead of brittle OE plastic that degrades and snaps over time, this rod is constructed from high-strength, flexible polyurethane. Paired with corrosion-resistant stainless steel ball studs, it guarantees smooth articulation and prevents the binding that destroys expensive sensors. Precision-manufactured for a perfect, bolt-on fit, this upgrade requires zero modifications to replace your fragile OEM unit.

This is a direct-fit replacement for Genuine BMW part number 37146752797, restoring proper suspension-to-sensor geometry so your headlights adjust perfectly to changing loads and road conditions.

Burnt out Angel Eye making your BMW look like it has a black eye? This Genuine BMW replacement bulb will is just the part you need. NOTE- Only for genuine BMW or Hella Angel Eye Headlights. Will not work with other aftermarket lights. Note: We also offer upgraded brighter angel eye bulbs for many BMWs.

Only for cars with ZKW brand light housing. The brand of light housing should be stamped into the plastic lens and/or the headlight housing. If you need the Valeo brand bulb please click here

**This is not officially approved by the DOT. For Off-road/Track use only. Not approved for legal street use

This item fits the following BMWs:
2006-2008 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335i 335xi 335i xDrive - Sedan - Only with Xenon Lights
2009-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335d 335i 335xi 335i xDrive - Sedan - Only with Halogen Lights
2006-2008 E91 BMW 325xi 328i 328xi - Wagon - Only with Xenon Lights
2009-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon - Only with Halogen Lights