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Custom 2016-2019 GLS63 X166 Headlamp

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2016-2019 GLS63 X166 Headlamp

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  • 2016-2019 GLS63 X166 Headlamp
  • 2016-2019 GLS63 X166 Headlamp

Auto Headlamp Upgrade Kit for 2016-2019 GLS63 X166

Product Introduction

   These auto headlamp assemblies are engineered for the Mercedes-AMG GLS 63 (X166 facelift chassis) model years 2016 through 2019, covering the facelift generation of the GL-Class renamed as GLS. The headlamps are designed as direct replacements for factory units, integrating with existing mounting points and electrical connectors. Each unit features full LED technology for low beam and high beam functions, with integrated LED daytime running light (DRL) strips. The housing is constructed from polycarbonate lens material with an ABS plastic back cover. The beam pattern is designed to meet ECE photometric standards with a sharp cutoff line for reduced glare. Plug-and-play harness adapters with CAN-bus decoders are included for direct connection to factory wiring without coding or modification.

Core Advantages

01
X166 Facelift Specific
Engineered for 2016-2019 Mercedes-AMG GLS 63 X166 facelift chassis, accounting for revised headlight contours and LED signature design.
02
Full LED Technology
Equipped with LED projectors for low beam and high beam, providing focused light output with defined cutoff lines and faster response time.
03
LED DRL Signature
Integrated LED daytime running light strip with distinctive light signature that matches Mercedes-Benz design language.
04
CAN-Bus Compatibility
Includes CAN-bus decoder modules that prevent dashboard error warnings and hyper-flash on Mercedes-Benz electrical systems.
05
Plug-and-Play Installation
Includes harness adapters that connect directly to factory X166 headlamp connectors. No coding or programming required.
06
Durable Construction
Polycarbonate lens with UV-resistant coating and ABS back cover. Housing sealed to prevent moisture ingress. IP65 rated.

Product Features

LED low beam Projector-type LED unit with sharp cutoff line. Luminous flux: 2200lm per side. Color temperature: 6000K. Provides consistent illumination without glare to oncoming traffic.
LED high beam Projector or reflector-type LED unit (depending on version). Luminous flux: 2600lm per side. Operates independently for increased range and intensity.
Daytime running light (DRL) Integrated LED strip along the lower edge of the housing. Activates when vehicle ignition is on. Dims to parking light function when headlamps are activated.
Turn signal indicator Amber LED located in the outer corner of the housing. Sequential or standard flash pattern depending on version. Includes load resistors for error-free operation.
Cornering light function Additional LED module that activates when turn signals are engaged or steering wheel is turned, illuminating the side of the road (select versions).
Housing construction Lens: polycarbonate with UV protective coating. Back cover: ABS plastic. Sealing: butyl rubber gasket. Water ingress protection: IP65 rated.

Technical Specifications

Parameter Specification
Low beam type LED projector with integrated cutoff shield
High beam type LED projector or reflector (depending on version)
DRL type LED strip, white light output (6000K)
Turn signal type Amber LED, sequential or standard
Color temperature (low/high beam) 6000K
Luminous flux 2200lm low beam / 2600lm high beam per side
Operating voltage 12V DC (10-16V range)
Total power consumption 45W per side (all functions combined)
Housing material Polycarbonate lens, ABS back cover
Ingress protection IP65
Operating temperature -30°C to +70°C
Connector type Mercedes-Benz factory-compatible with included CAN-bus adapter harness

Application Scenarios

2016-2019 GLS 63 AMG X166 facelift
GLS 550 with LED headlamps
GLS 450 / GLS 500 X166 facelift
Factory headlamp replacement
Nighttime and highway driving
Luxury SUV customization

These headlamps are compatible with Mercedes-Benz GLS-Class X166 facelift models from 2016 to 2019, including GLS 63 AMG, GLS 550, GLS 500, and GLS 450 variants equipped with the LED headlamp option. Applications include replacement of yellowed, faded, or damaged factory headlamps, upgrading from halogen or bi-xenon to full LED technology for improved nighttime visibility, and restoration of luxury SUV lighting systems. The LED output provides increased illumination range and width compared to factory halogen or xenon units. The distinctive DRL signature enhances daytime brand identity. The IP65 rated housing is suitable for all-weather driving conditions.

Common Questions and Solutions

Will these headlamps fit both pre-facelift and facelift X166 models?
No. These headlamps are specifically designed for the 2016-2019 X166 facelift models. Pre-facelift X166 models (2013-2015) have different headlamp shapes, mounting points, and electrical connectors. Verify your vehicle's model year and headlamp shape before ordering. The facelift headlamps have a distinct LED DRL signature different from pre-facelift units.
Do the headlamps require coding or programming after installation?
No. The included CAN-bus decoder modules simulate the electrical load of factory headlamps and communicate correctly with the Mercedes-Benz SAM module. No coding or programming is required. However, if your vehicle originally had halogen headlamps, the wiring harness may need a simple plug-and-play adapter (included).
Are the headlamps road legal?
Yes. The headlamps are designed to meet ECE R112 photometric standards. The LED projectors include a defined cutoff line to prevent glare to oncoming traffic. The DRL intensity complies with ECE R87 regulations. The headlamps bear E-mark approval markings for road-legal operation in applicable markets.
What is the installation time for the headlamps?
Professional installation typically requires 2-2.5 hours, including front bumper removal (required for X166 headlamp access), removal of factory units, CAN-bus adapter connection, and beam alignment verification. Mercedes-Benz GLS models have a complex front bumper assembly with multiple sensors and washers.
Will the headlamps work with the factory auto-leveling system and headlamp washers?
Yes. The headlamps include manual vertical adjustment screws compatible with factory auto-leveling mechanisms. For vehicles with factory auto-leveling, the leveling motors must be transferred from the original headlamps (if equipped). Headlamp washer cutouts are pre-marked and can be opened if required for your market.
What is the warranty period for these headlamps?
The headlamps include a 24-month warranty against manufacturing defects, LED failure, and moisture ingress from factory-sealed housings. The warranty does not cover damage from improper installation, accidents, or modifications. Keep the original packaging for warranty claims.

Installation Considerations

1
On GLS X166 models, the front bumper must be partially removed to access the lower headlamp mounting bolts. Remove the front grille, wheel arch liners, and underbody panels. Support the bumper to avoid damaging parking sensor wiring.
2
Disconnect the vehicle battery negative terminal before removal. Allow the vehicle's electrical system to fully discharge (approximately 5 minutes) before disconnecting any modules to prevent fault codes in the SAM unit.
3
Remove the electrical connector by pressing the release tab. Remove the 4 mounting bolts (size 10mm) securing the headlamp housing. Carefully pull the housing away from the vehicle body. Note the position of alignment dowels.
4
Transfer any applicable components from the factory headlamps including rubber seals, auto-leveling motors, and headlamp washer jets (if equipped) to the new units. Ensure the foam gasket is intact to prevent water entry.
5
Connect the included CAN-bus adapter harness between the factory connector and the new headlamp. Secure the decoder module away from heat sources using the included mounting tape. Secure wiring with cable ties to prevent chafing against metal edges.
6
Before securing the headlamp fully, test all functions: low beam, high beam, DRL, turn signal, cornering light (if equipped), and parking light. Verify no dashboard error warnings appear. Perform beam alignment using built-in adjustment screws. Reinstall the front bumper and verify all gaps are consistent.
Changzhou Xinkai auto parts Co., Ltd.

About Us

Changzhou XinKai auto parts Co., Ltd. Is a R & D, manufacturing, sales as one of professional automotive tuning company. The company was founded in 1999, the registered capital of 5 million yuan. Is located in the Menghe town,Changzhou ,Jiangsu which with the reputation of Chinese motorcycle production base.We are China Custom 2016-2019 GLS63 X166 Headlamp Suppliers and OEM/ODM 2016-2019 GLS63 X166 Headlamp Company.Companies adhering to enhance the appearance of the vehicle configuration, the concept of car modification trend, and constantly develop high-quality, personalized products.More than and 10 years of accumulated experience and unremitting efforts to form a rich product line. Covered bodykit,auto lamp, front and rear bumper, skid plate, side step/running board, roof rack, spoiler, grille, decorative trim and other series. Product suit for massive models included Chinese, Japan and South Korea, Europe and the United States brand.
Company currently covers an area of 15000 square meters, construction area of 50000 square meters, has a comfortable and elegant office environment and a new modern standard factory.Has a large injection molding machine, blow molding machine, precision hydraulic press equipment, advanced four-dimensional laser cutting equipment, as well as large CNC machine tools and other equipment.
Company staff 82 people, has a group of elite management and a high qualified professional design, technical team.Of which 5 professional designers, technical staff 6, college and higher education staff accounted for 19%.Of which 5 professional designers, technical staff 6, college and higher education staff accounted for 19%.
The company now has three registered trademark, 2 utility model patent, 76 product design patent . Three consecutive years was rated as high-tech enterprises in Changzhou City, the in the same industry to implement the "enterprise intellectual property management norms" national standards. At the same time for four consecutive years by the Chinese people's Insurance Group Limited by Share Ltd (PICC) to cover product liability insurance.
Consistently adhere to the quality of the for the company has brought a good reputation and fruitful results. Customers all over Southeast Asia, Middle East, North America, europe. Since the company was founded in 1999, sales have maintained a sustained and stable growth, from 2013 to 2015 of three years, the company annual sales of 250 thousand (sets), the annual output of up to 300 thousand pieces (sets). The company's brand "CXK" has high brand image and good reputation in exterior parts industry. Personalized customized products for customers is favored by the user.

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Industry knowledge

As a premier automotive lighting manufacturer, we provide engineered replacement headlamp assemblies that match original equipment performance and design standards. Our replacement headlamps for the 2016, 2017, 2018, and 2019 GLS63 X166 models offer international wholesale buyers, distribution networks, and collision repair centers an ideal combination of optical precision, structural durability, and seamless system integration.

Product Features and Advantages

Optical Engineering and Superior Illumination

Our headlamp assemblies utilize advanced light emitting diode projection technology to deliver a precise beam pattern. This engineering ensures optimal road coverage, excellent peripheral illumination, and a sharp cutoff line that prevents oncoming traffic glare. The integrated daytime running lights provide consistent brightness and instant activation, matching the luxury aesthetic and safety demands of the premium sports utility vehicle segment.

Premium Material Construction

Built to withstand extreme environmental conditions, the outer lens is molded from high grade polycarbonate material treated with an advanced anti ultraviolet coating. This specialty coating prevents yellowing, surface hazing, and micro cracking caused by prolonged sunlight exposure. The rear housing is constructed from high impact thermal plastics that resist engine bay heat and road vibrations.

Superior Moisture Management

To prevent moisture accumulation, each lamp assembly is engineered with a multi layer sealing structure and high performance ventilation breathers. These specialized vents allow moisture and heat to escape efficiently while preventing water droplets, dust particles, and road debris from entering the internal optical chamber.

Technical Specifications and Compatibility

Parameter Specification Details
Vehicle Model Compatibility GLS63 AMG Base and Sport Utility Models
Chassis Generation X166 Platform
Applicable Model Years 2016 2017 2018 2019
Light Source Technology Advanced Light Emitting Diode System
Lens Treatment Anti Ultraviolet and Hard Hardened Coating
Certification Compliance Department of Transportation and Society of Automotive Engineers Standards
Housing Material Heavy Duty Polypropylene and Polycarbonate

Direct Manufacturer Advantages

Strict Quality Management

Our manufacturing facility operates under the IATF 16949 international automotive quality standard. Every single headlamp assembly undergoes rigorous automated testing before packaging, including comprehensive photometric beam analysis, vacuum leak testing for waterproof integrity, and electrical circuit stability testing.

Optimized Supply Chain for Global Wholesale

We provide flexible bulk ordering options, tailored original equipment manufacturing solutions, and customized packaging configurations to protect fragile components during long distance ocean freight transport. Our direct factory sourcing model removes intermediary markups, giving global automotive parts distributors a strong competitive pricing advantage in their local markets.

Frequently Asked Questions

What is the minimum order quantity for wholesale distribution

Our standard minimum order quantity is fifty sets per order configuration. However, we can accommodate smaller quantities for initial trial orders to help new distribution partners evaluate our product quality, physical fitment, and market demand.

Does this headlamp assembly require modification to the vehicle wiring

No. Our headlamp units are engineered as direct plug and play replacements that match the factory mounting brackets, alignment points, and electrical harness connectors of the vehicle. No wiring modifications or body alterations are required for installation.

How does your factory ensure the waterproof performance of each unit

Every headlamp assembly undergoes an automated low pressure air leakage test on the production line. This process ensures the structural seals and ventilation breathers are completely sound, preventing internal condensation and water ingress under heavy rain or high pressure car washes.

Are control modules and ballasts included in the bulk shipment

We offer flexible product configurations based on your business needs. We can supply the complete headlamp assembly including the pre installed electronic control units, or we can ship the housing unit alone if your customers prefer to transfer their existing factory modules.

What packaging measures are used to prevent shipping damage

We utilize custom molded expandable polyethylene foam blocks that perfectly cradle the headlamp housing inside a thick corrugated master carton. Each lens surface is covered with a protective anti scratch film to eliminate movement friction and ensure the product arrives in flawless condition at your warehouse.