Mercedes W213 C238 C253 Headlight Light Height Level Sensor Control A0009053704

Mercedes W213 C238 C253 Headlight Leveling Sensor A0009053704 is an original component of the beam height adjustment system in Mercedes vehicles, designed for the front of the body. This precise sensor works with the headlight control system, enabling stable, automatic adjustment of the light position to the current vehicle load and driving conditions.

Specifications and technical data

• SKU: A2139051902-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139051902
• Substitutable numbers: A2139051902, A 213 905 19 02, A0009053704, A 000 905 37 04
• Location on the vehicle: Front
• Category: Headlight Assemblies

Purpose and Function of the Leveling Sensor

The headlight leveling sensor in W213, C238, and C253 series models is responsible for transmitting information about the current body position relative to the front axle to the control unit. Based on this data, the control module corrects the headlight tilt angle, which helps maintain the correct road illumination pattern, reduce glare for other road users, and improve driver visibility.

The component operates within the Front Lights category, integrating with the vehicle's factory lighting system. A properly functioning sensor is particularly important in cars equipped with automatic headlight leveling, where measurement accuracy directly translates to safety during night driving.

Construction, Installation, and Vehicle Placement

The presented sensor is structurally designed for installation in the front of the vehicle, in accordance with the factory location specified by the manufacturer. Its placement at the front of the body allows for effective monitoring of suspension geometry changes resulting from load and driving dynamics.

This solution allows for:

• direct cooperation with the factory suspension and lighting system,
• maintaining the original headlight performance characteristics,
• reducing the need for installation modifications during replacement.

Thanks to the preservation of factory mounting geometry, the sensor can be used as a service part to replace a worn or damaged component, while maintaining compatibility with the front axle construction.

Performance Characteristics and Benefits of Use

A properly selected headlight leveling sensor in a Mercedes ensures stable operation of the headlight adjustment system under a wide range of road conditions. In practice, this means:

• more predictable road illumination when the vehicle load changes,
• reduced risk of dazzling oncoming drivers,
• maintaining lighting parameters close to the manufacturer's original specifications.

A component from this group is particularly important in vehicles used intensively, where the suspension and lighting system operate under variable conditions. Using an original sensor dedicated to specific body series ensures the cohesive operation of the entire system and reduces potential diagnostic errors related to incorrect body position readings.

Condition, Verification, and Service Application

The offered headlight leveling sensor is a used component, allowing for economical repair of the lighting system while maintaining the original manufacturer's specifications. This type of component is often chosen as a service solution when the existing sensor generates system errors or causes incorrect headlight operation.

Before installation, standard service procedures are recommended, including checking the electrical installation, verifying mountings, and potential system adaptation in the control unit, in accordance with the procedures for the specific vehicle model. This allows for the restoration of correct automatic headlight adjustment without interfering with other system components.

Related Items in the Mercedes Front Lights Category

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 headlights, control modules, or additional mounting accessories, check the available parts in the Mercedes Front Lights category.