Description
The Mercedes W245 Front Headlight Wiring Harness Left is an original electrical installation component designed to service the driver’s side lighting. Thanks to its factory fit for the W245 platform, the harness ensures a stable electrical connection and proper cooperation with the front lighting system. This is a practical solution for collision repairs, headlight replacement, or damage to the factory wiring.
Specifications and technical data
- SKU: A1698202561
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A1698202561
- Substitutable numbers: A1698202561, A 169 820 25 61, ŁS
- Location on the vehicle: Front, Left
- Part type: Wire Harness
- Category: Wiring Harnesses, Cables & Connectors
Vehicle Application and Function
The presented wiring harness is part of the Wires, Harnesses, and Connectors category and is responsible for supplying power and control signals to the front left headlight of the vehicle. Its placement in the front area means the component operates in an environment exposed to temperature changes, moisture, and vibrations, making the use of an original solution crucial for lighting system reliability.
The harness has been specifically designed for the Mercedes W245 construction, which translates to:
- appropriate length and routing of wires in the front compartment,
- factory connectors matched to the headlight and vehicle’s electrical system,
- correct assignment of wires to lighting functions (low beam, high beam, parking light, turn signal – according to the specific headlight configuration).
Benefits of Using an Original Mercedes Harness
Using a dedicated harness for the W245 model helps reduce the risk of problems typical with wiring modifications, such as unstable connections, control unit errors, or lighting malfunctions. The original design ensures:
- reliable electrical connection thanks to appropriately selected connectors and wire gauges,
- compliance with the factory wiring diagram,
- easier diagnosis of potential future faults.
This solution is particularly beneficial for professional body and electrical repairs where maintaining manufacturer standards and assembly repeatability is crucial.
Installation and Service Application
The front left headlight wiring harness is intended for installation in the front area of the vehicle, on the driver’s side. The design, tailored to the W245 body, facilitates wire routing through original mounting points, preserving the correct installation path and minimizing the risk of insulation abrasion.
This component is particularly useful when:
- the factory harness has been damaged due to a collision or corrosion,
- the headlight needs to be replaced along with a section of the wiring,
- you want to restore the correct electrical condition after previous, non-factory modifications.
By maintaining the original wire geometry, installation is predictable, and the risk of incorrect connection of individual circuits is reduced.
Product Characteristics and Condition
The offered harness belongs to the electrical components group for the Mercedes brand, meaning it complies with factory manufacturing and fitment standards for the specific model. The product is marked as used, which in practice means it comes from a dismantled vehicle, and its construction retains the functionality required for further operation in the vehicle.
Choosing such a solution is economically advantageous while allowing for the maintenance of installation consistency with the original manufacturer’s design, without the need for universal adapters or additional modifications.
Related Items and Additional Information
If you are planning a comprehensive repair or upgrade of the front lighting area in your Mercedes and need other items from the same group, such as additional harnesses, wire sections, or headlight connectors, check the available parts in the Mercedes Wires, Harnesses, and Connectors category.
To compare solutions used in different brands and better understand how manufacturers develop their electrical and lighting systems in sports hatchbacks, you can read an article describing the evolution of the popular VW model: Hot Hatch Legend: The Evolution of the VW Golf GTI from Mk1 to Mk8 – Design Changes and VW Car Parts.





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