What is the construction and purpose of headlights?

Headlights are lighting assemblies mounted on the left and right sides of the front of the vehicle. A typical headlight consists of a housing, a lens, an optical element, mounts, and an electrical connector, and in more advanced versions, also a control module or ballast. Their primary task is to illuminate the road and ensure the vehicle is visible to other road users.

What are headlights used for?

Headlights are used for safe driving after dark, in rain, fog, and other conditions of limited visibility. They are responsible for properly illuminating the lane ahead of the car and for signaling the vehicle's presence on the road. Not only the driver's comfort but also the correct perception of the vehicle by other road users depends on their efficiency.

What role does the lamp module play?

The lamp module is an electronic controller that works with the headlight, managing the power supply and operation of selected lighting functions. Depending on the design, it may be responsible for LEDs, leveling, cornering lights, or communication with the vehicle's electrical system. Its compatibility must be checked separately, as even externally similar lamps may have different controllers and connectors.

How to choose headlights for a specific car version?

It is best to compare the OEM part number, interchangeable numbers, mounting side, and body version. It is also worth checking whether the car has halogen, xenon, or LED lights and whether the headlight comes from a pre-facelift or post-facelift version. For more complex lamps, the compatibility of modules and plug types is also important.

What signs of headlight damage should I look for?

The most common signs are a foggy lens, cracks, moisture inside the lamp, damaged brackets, and an uneven light beam. In lamps equipped with electronics, controller errors or the failure of selected functions may also occur. Before installation, it is also worth checking the condition of the pins and the housing at the back of the headlight.

Does headlight installation require additional checks after mounting?

Yes, after installation, you should check the fitment of the lamp with the fender, bumper, and grille, and verify the operation of all light functions. It is also very important to adjust the beam height so as not to dazzle other drivers. In cars with more advanced lighting, additional adaptation or coding may be required.

Headlights

At Global Parts, we offer a wide selection of original used car parts, including headlights for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Our headlights undergo quality control to ensure you receive a top-quality product.

More information

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Light Module Mercedes W211 W219 Headlight Headlamp Xenon Unit A0038205826

€47.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2189009303

Mercedes W156 W176 Headlight Module Ballast LED Control Unit Front A2189009303

€94.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A9108260800-1

Mercedes W907 Headlamp Cap Front Lamp Cover Trim Panel Left Right N/O/S 89034078

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1408200649

Mercedes-Benz W168 W169 Front Headlight Lamp Cover Cap A1408200649 1305239069

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1669002800

Light Module Mercedes W176 W204 Headlight Ballast Xenon Control Unit A1669002800

€56.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2116200416

Mercedes-Benz E-Class S211 W211 Support Holder Headlight Right O/S A2116200818

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0028202326

Mercedes W211 W219 Headlight Module Xenon Unit 5DV008290

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1298002475

Mercedes-Benz A-Class W168 Front Headlight Lamp Adjuster A1298002475

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2116200718

Mercedes-Benz E-Class S211 W211 Support Holder Headlight Left N/S A2116200718

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0008262800

Mercedes W205 Headlight Lamp Bulb Cap Dust Cover Left Right N/O/S 21786100

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1698207961-2

Mercedes W245 Headlight Lamp Light Front Left N/S Plug Socket Wiring A2205454628

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2045406205

Headlight Level Cable Mercedes W204 C207 Headlamp Leveling Wiring A2045406205

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A204626054

Mercedes W204 Headlight Bracket Front Left Mounting A204626054

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 10160050000

Mercedes W176 Headlight Control Module Cooling Fan 10160050000

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2229050503

Mercedes W205 Headlight Level Sensor Leveling Control Unit Module A2229050503

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2059067104

Mercedes W205 LED Headlight Blower Fan Unit Front Left Right N/O/S 211824

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1688200049

Mercedes-Benz A W168 Front Headlight Lamp Cover Cap A1688200049 1305219099

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0018260382

Mercedes-Benz A-Class W168 Bulb Socket Holder Headlight Front A0018260382

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0008264324

Mercedes W204 W211 W212 W246 Headlight Covering Cap Low Beam Cover 1305219079

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0065428318

Headlamp Level Sensor Mercedes W212 Headlight Leveling Control Unit A0065428318

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0009053704

Mercedes W213 W205 Headlight Light Height Level Sensor Control Unit A0009053704

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A21246000

Mercedes W205 Headlight Headlamp Control Module Front LED DRL Unit A21246000

€66.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2168203585

Mercedes W221 Xenon Control Unit Headlight Ballast Module A2168203585

€85.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0008211933

Mercedes Vito W639 Headlight Headlamp Front Lamp Cover Cap A0008211933

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2539068200

Headlight Module Mercedes GLC X253 C253 Right O/S LED Ballast Unit A2539068200

€28.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2088200149

Mercedes CLK W203 W208 W210 Front Low Beam Headlight Lamp Cover Cap A2088200149

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2046202191-1

Mercedes W204 Headlight Lamp Bracket Front Left N/S Mounting Support A204620593

€28.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0008292001

Mercedes W906 Headlight Lamp Leveling Sensor Control Unit Module A0008292001

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 1305239192

Headlamp Cover Mercedes W169 Lamp Headlight Trim Front Light 1305239192

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0009059413

Mercedes C118 W177 W247 Head Light Lamp Level Sensor Front Axle A0009059413

€28.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2128260691

Headlight Seal Mercedes W212 Front Right O/S Lamp Sealing Frame 16642600

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2206190338

Mercedes-Benz S W220 Left N/S Underbody Cover Below Rear End Floor A2206190338

€37.95

Free delivery: Jul 22 – 27

If paid before 14:00

Mercedes W203 CL203 Headlight Holder Frame Front Right O/S A2036203272

-23%

Part no. A2036203272

Mercedes W203 CL203 Headlight Holder Frame Front Right O/S A2036203272

Promo price

€42.95

€32.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A204620595-1

Mercedes W204 Front Headlight Bracket Support Left Right N/O/S Set A204620595

€51.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A7899007000

Mercedes EQA H243 Headlight Light Lamp Module Control Unit Hella A7899007000

€146.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2048800130

Mercedes W212 Headlight Support Bracket Protection Hood Lock Cover A2048800130

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2539007000

Headlight Module Mercedes X253 C253 Left N/S LED Ballast Unit A2539007000

€113.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 1305715204

Mercedes W205 Headlight Module LED Light Control Unit Front Left N/S 1305715204

€28.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2228700789

Headlight Module Mercedes W212 W222 Ballast LED Control Unit Front A2228700789

€51.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2048261324

Mercedes W204 Headlamp Trim Headlight Cover Left N/S C-Class A2048261324

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1698210336

Mercedes W245 Front Left N/S Headlight Cover Trim A1698210336

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2037250471-1

Mercedes CLC CL203 Right O/S Window Frame Trim Mould Cover A2037250471

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2218706389

Mercedes W221 Light Module Headlight Headlamp Ballast Xenon Unit A2218706389

€47.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0035426618

Headlamp Level Sensor Mercedes W212 Headlight Leveling Control Unit A0035426618

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0055421618

Height Level Mercedes W207 C350 Sensor Headlights Adjusting A0055421618

€47.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0009050201-1

Mercedes W204 Headlamp Level Control Unit Light Leveling Lever A0009050201

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 1305715306

Mercedes GLE C292 Coupe Headlight LED Control Module DRL 1305715306

€32.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 1305239222

Mercedes W220 Headlight Bulb Dust Cover Cap 1305239222

€32.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2168203789

Mercedes-Benz S W221 Bi-Xenon Headlight Ballast Control Unit Module A2168203789

€80.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2468207361-2

Mercedes W246 Xenon Headlight Headlamp Wiring Plug Front Left N/S A2468207361

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A204620594

Mercedes W204 Headlight Bracket Front Right O/S Headlamp Support A204620594

€28.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0018260124

Bulb Holder Mercedes SLK R171 W211 Headlight High Beam Cover Cap Hella 15538900

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 1315320491

Mercedes W204 Front LED Headlight Side Light Right O/S 1315320491

€37.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 0307650008

Mercedes W169 Headlight Beam Adjuster Actuator Motor 0307650008

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1769001204

Mercedes W176 Light Module Headlight Headlamp Ballast LED Unit A1769001204

€85.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 1305715284

Headlight Module Mercedes W205 LED Headlamp Ballast Control Unit 1305715284

€32.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0045428518

Mercedes W204 Headlight Light Height Level Sensor Module Unit A0045428518

€32.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0009050303

Mercedes SL R231 Headlight Light Height Level Sensor Control Unit A0009050303

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0008211933-1

Mercedes Vito W639 Headlight Headlamp Front Lamp Cover Cap A0008211933

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2128208461-2

Mercedes W212 Headlight Plug Lamp Wiring Light Front Right O/S A2128208461

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. 1305219106

Headlamp Cover Mercedes W203 W204 Lamp Headlight Trim Front Light 1305219106

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1669007101

Mercedes W204 Headlight Level Sensor Leveling Control Unit Module A1669007101

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A1669003401

Mercedes W204 Headlight Level Sensor Leveling Control Unit Module A1669003401

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2128208361-2

Mercedes W212 Headlight Plug Lamp Wiring Front Left N/S A2128208361

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2078200639-5

Mercedes W207 Headlight Plug Headlamp Light Wiring Front Right O/S A2078200639

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2078200539-2

Mercedes W207 Headlight Plug Headlamp Light Wiring Front Left N/S A2078200539

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A9109060300-2

Mercedes W907 W910 Headlamp Cable Headlight Lamp Wiring Harness A9109060300

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2113200943

Mercedes W211 C219 Dynamic Headlamp Range Control Rear Bracket Mount A2113200943

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A9068260024

Mercedes Sprinter W906 Front Headlight Headlamp Socket Cover Trim A9068260024

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2038200761-2

Mercedes S203 W203 Headlight Headlamp Plug Wiring Front Left N/S A2038200761

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2038200861-2

Mercedes W203 Headlight Headlamp Lamp Plug Wiring Front Right O/S A2038201459

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2059060003-2

Mercedes S205 Rear Tail Light Lamp Plug Socket Wiring Right O/S A2059060003

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A0009053704-2

Mercedes W205 W213 Head Light Height Level Sensor Unit Right O/S A0009053704

€23.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A204620596-1

Mercedes W204 Headlight Bracket Front Right O/S Mounting Support A204620596

€28.95

Free delivery: Jul 22 – 27

If paid before 14:00

Part no. A2129007804

Mercedes W212 Xenon Control Unit Headlight Ballast Module Hella A2129007804

Product currently unavailable

Part no. A2189000002

Headlight Module Mercedes W204 CLS W218 Ballast Control Unit Front A2189000002

Product currently unavailable

Part no. A1729015400

Mercedes W204 Xenon Headlight Ballast Control Unit Module A1729015400

Product currently unavailable

Part no. A0105427717

Mercedes W203 W211 W220 Height Level Sensor Headlights Adjusting A0105427717

Product currently unavailable

Part no. A2048205859-2

Mercedes W204 Headlamp Cable Headlight Wiring Lamp Harness Front A2048205859

Product currently unavailable

Part no. A2218709126

Mercedes W221 Light Module Headlight Ballast Xenon Control Unit A2218709126

Product currently unavailable

Part no. A2046202191

Mercedes W204 Headlight Lamp Bracket Front Mounting Support Left N/S A204620583

Product currently unavailable

Part no. A2229000515

Headlight Module Mercedes W205 W213 LED Ballast Unit Right O/S A2229000515

Product currently unavailable

Part no. A2059064406-1

Mercedes W205 Headlight Lamp Front Right O/S Plug Socket Wiring A2059064406

Product currently unavailable

Part no. A2139003911

Mercedes W213 Headlight Module LED Headlamp Ballast Control Unit A2139003911

Product currently unavailable

Part no. A4479067900-2

Mercedes W447 Headlamp Headlight Light Lamp Cabel Wiring Harness A4479067900

Product currently unavailable

Part no. A2229000015

Mercedes W205 Headlight Module LED Ballast Control Unit A2229000015

Product currently unavailable

Part no. A2118709026

Mercedes W211 Xenon Control Unit Headlight Ballast Module Hella 5DC009060-00

Product currently unavailable

Part no. A2189009600

LED Module Mercedes C204 C218 Headlight Control Unit A2189009600

Product currently unavailable

Part no. A6398202161-2

Mercedes Vito W639 Headlight Front Right O/S Plug Socket Wiring A0525455626

Product currently unavailable

Part no. A2189009103-1

Headlight Module Mercedes W204 C218 W246 Front Ballast Control Unit A2189009103

Product currently unavailable

Part no. A1769066600

Mercedes W176 Headlight Module Ballast Control Unit A1769066600

Product currently unavailable

Part no. A2518203710

Mercedes ML W164 Sun Sensor Sunlight Sensor Front Light Lamp A2518203710

Product currently unavailable

Part no. A1769004104

Mercedes W176 Headlight Module Control Unit A1769004104

Product currently unavailable

Part no. A0105427717-1

Mercedes W169 W203 W211 C219 W220 Headlight Height Level Sensor A0105427717

Product currently unavailable

Part no. A1698208061-3

Mercedes W245 Headlight Lamp Front Right O/S Plug Socket Wiring A2205454628

Product currently unavailable

Part no. A2059066702-1

Mercedes W205 Headlamp Headlight Plug Lamp Wiring Front Left N/S A2059066702

Product currently unavailable

Part no. A1668203689

Mercedes ML W166 CLS W218 Xenon Headlight Ballast Control Unit A1668203689

Product currently unavailable

Part no. A0045429918

Mercedes W176 W246 Headlight Headlamp Leveling Level Sensor A0045429918

Product currently unavailable

Part no. A2479003603

Mercedes W177 LED Headlight Ballast Control Unit Module A2479003603

Product currently unavailable

Showing 1-99 of 168 products

Complete headlight kits – ready to install, durable, and effective

The best original headlights – LED, xenon and halogen headlights for demanding drivers

Headlights are one of the most important components of a vehicle, ensuring safety on the road for both the driver and other road users. Properly selected and functional headlights guarantee optimal visibility in various weather conditions and improve the aesthetics of your car. In the Global Parts automotive store, you will find a wide selection of used car parts, including headlights, suitable for brands such as BMW, Audi, Mercedes, Volkswagen, Mini, and many others.

What functions do headlights perform?

Headlights perform several key functions that impact driving safety and comfort:

Road illumination – They provide visibility on the road when driving at night or in conditions of limited visibility.
Signaling – They inform other road users of the vehicle's presence on the road and of maneuvers being performed (low beam, high beam, parking lights, turn signals).
Vehicle aesthetics – Modern headlights, such as LED or xenon, give the vehicle a contemporary and attractive appearance.

Definition and types of car headlights

Headlights in a car are a set of lamps located at the front of the vehicle, responsible for illuminating the road ahead. There are three main types of headlights: halogen, xenon (HID), and LED. Halogen headlights are a traditional solution with a bulb power of approximately 55 W, while xenon headlights generate significantly brighter light with lower energy consumption. In turn, LED headlights are characterized by even greater durability and lower operating temperatures, which makes them increasingly common in modern cars.

Construction and purpose of headlights

Headlights are complete lighting assemblies mounted on the left or right side of the vehicle's front end. Such a component usually consists of a housing, a lens, a reflector or projector, mounting points, and an electrical connector, and depending on the version, also an adjustment motor, a control module, and a ballast. Headlights are used to illuminate the road and properly mark the vehicle in traffic. Within the category of automotive lighting, these are among the most important elements affecting visibility and the proper fitment of the car's front end.

Comparison of headlight variants

Headlight type	Construction	Associated components	What to check before purchase
Halogen	Reflector and replaceable bulb	Bulb socket, height adjustment, basic connector	Socket type, OEM number, mounting side, lens condition
Xenon	Projector or lens and high-voltage system	Ballast, igniter, leveling sensors depending on version	Installation compatibility, mounts, presence of accessories, part number
LED	LED modules and integrated or separate control electronics	Control module, wiring harness, cooling, sometimes adaptive control	OEM number, number of plugs and pins, pre-facelift or post-facelift version

Why is it worth taking care of your headlights?

Damaged or faulty headlights can lead to serious road safety issues. Typical signs of malfunction include:

Reduced visibility – Foggy or cracked headlight lenses can limit the amount of light reaching the road.
Incorrect illumination – An improper light beam angle can dazzle other drivers.
Loss of vehicle aesthetics – Worn or damaged lights can negatively affect the car's appearance. At Global Parts, we offer original used headlights that have undergone detailed quality tests, ensuring their durability and reliability.

Technical parameters and fitment

When selecting headlights, it is worth paying attention to parameters such as bulb power, socket type (e.g., H4, H7, D2S, D3S), light color temperature (expressed in Kelvin – e.g., 4300 K, 6000 K), and compliance with ECE homologation. Proper matching to the OEM number or the vehicle's VIN ensures compatibility for both mechanical mounting and electrical connections. For example, headlights for a BMW 3 Series E90 differ in construction from those used in the F30 model, despite a similar housing shape.

Selection, compatibility, and associated components

When choosing a headlight, it is worth comparing the OEM part number, interchangeable numbers, vehicle placement, and body version. The lamp module refers to the electronic controller responsible for powering and operating selected headlight functions, so its compatibility is just as important as the shape of the housing. When choosing an item such as a BMW F10 LED lamp, you must check not only the mounting side but also the connector type, the presence of a controller, and compatibility with the equipment version. In many cases, related components such as ballasts and igniters for lamps and cables, plugs, and connectors are also important.

How to choose the right headlights?

When choosing headlights, several key aspects should be considered:

Vehicle model fitment – Every car has specific requirements regarding headlights. At Global Parts, you will find headlights perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and others.
Lighting type – Choose LED, xenon, or halogen lights depending on your preferences and vehicle equipment.
Technical condition – Used headlights should be free from cracks, fogging, and mounting damage.

Why choose used headlights?

Used car parts, such as headlights, are a practical solution that allows for cost savings while maintaining high quality. By choosing used headlights, you gain:

Lower costs – Used lights are significantly cheaper than new ones but offer equally high quality.
Ecology – Recycling car parts supports environmental protection and reduces waste.
Wide selection – In our store, you will find headlights for the most popular car brands.

Compatibility and installation

Thanks to a wide database of car models, the headlights available at Global Parts can be easily matched to a specific vehicle version. Each headlight has markings that allow for quick verification of compatibility with the original manufacturer's number (OEM). When looking for parts for a specific model, for example, a BMW E90, it is good to verify the body version, headlight type, and mounting layout. If you are looking for a component such as a BMW F10 lamp module, you should compare the controller number, plug type, and compatibility with the given headlight, as the shape of the lamp alone does not confirm full compatibility.

How to maintain your headlights?

To ensure headlights work reliably for a long time, it is worth following a few rules:

Regularly clean the headlights to prevent dirt buildup and reduced light brightness.
Check the headlight alignment to ensure the correct beam angle and avoid dazzling other drivers.
Replace bulbs on time to maintain even road illumination. If you need to replace your headlights, at Global Parts you will find suitable used auto parts.

Signs of wear and practical assessment of headlight condition

The headlight lens is the transparent part of the lamp that protects the interior from moisture and dirt while influencing the quality of light distribution. In practice, before purchasing, it is worth assessing the clarity of the lens, the condition of the seals, the completeness of the brackets and mounting points, and any signs of repair. If the lamp also works with daytime running lights, you should check the correct operation of all light sections, not just the low beams. This is especially important when the headlight has integrated turn signals or works with turn signal indicators.

FAQ

Question	Answer
What is the construction and purpose of headlights?	Headlights are lighting assemblies mounted on the left and right sides of the front of the vehicle. A typical headlight consists of a housing, a lens, an optical element, mounts, and an electrical connector, and in more advanced versions, also a control module or ballast. Their primary task is to illuminate the road and ensure the vehicle is visible to other road users.
What are headlights used for?	Headlights are used for safe driving after dark, in rain, fog, and other conditions of limited visibility. They are responsible for properly illuminating the lane ahead of the car and for signaling the vehicle's presence on the road. Not only the driver's comfort but also the correct perception of the vehicle by other road users depends on their efficiency.
What role does the lamp module play?	The lamp module is an electronic controller that works with the headlight, managing the power supply and operation of selected lighting functions. Depending on the design, it may be responsible for LEDs, leveling, cornering lights, or communication with the vehicle's electrical system. Its compatibility must be checked separately, as even externally similar lamps may have different controllers and connectors.
How to choose headlights for a specific car version?	It is best to compare the OEM part number, interchangeable numbers, mounting side, and body version. It is also worth checking whether the car has halogen, xenon, or LED lights and whether the headlight comes from a pre-facelift or post-facelift version. For more complex lamps, the compatibility of modules and plug types is also important.
What signs of headlight damage should I look for?	The most common signs are a foggy lens, cracks, moisture inside the lamp, damaged brackets, and an uneven light beam. In lamps equipped with electronics, controller errors or the failure of selected functions may also occur. Before installation, it is also worth checking the condition of the pins and the housing at the back of the headlight.
Does headlight installation require additional checks after mounting?	Yes, after installation, you should check the fitment of the lamp with the fender, bumper, and grille, and verify the operation of all light functions. It is also very important to adjust the beam height so as not to dazzle other drivers. In cars with more advanced lighting, additional adaptation or coding may be required.

Summary: headlights at the Global Parts automotive store

Headlights are key components affecting the safety and appearance of your vehicle. In the Global Parts offer, you will find used headlights and components matched to brands such as BMW, Mercedes, Audi, and others, taking into account data such as OEM number, interchangeable numbers, condition, and vehicle placement. This makes it easier to select the right part for many models and equipment versions without guessing compatibility. We invite you to contact us – we are here to help! For more information and interesting facts, we also invite you to visit our automotive blog.

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