Product Overview

The ride height/headlight level sensor, OEM number A0045429918, is fitted across an exceptionally wide range of Mercedes-Benz models, including the A-Class, B-Class, C-Class, E-Class, M-Class (W166), GL-Class (X166), GLE, GLS, CLA, CLS, and AMG GT, covering front and rear positions across multiple axles. Since this single sensor spans nearly every current and recent Mercedes-Benz model line, it's an exceptionally high-turnover part number worth stocking in significant volume for distributors serving Mercedes-Benz suspension and lighting parts demand.

A worn or failing level sensor typically shows up as headlights that don't self-level correctly, an air suspension warning light, or uneven ride height (on air suspension-equipped models). GSK Auto manufactures this sensor to OEM specification at our Ningbo, China facility, with every unit tested before packing. We supply at wholesale volume with low MOQ and support private label packaging, with our team available to confirm fitment before shipping.

Replacement OEM Numbers

Cross-Reference OEM Number

0045429918, 004-542-99-18, 520101

(Confirm against your VIN or chassis code and sensor position (front/rear, left/right) before ordering — these are commonly listed cross-references for this application, not a guarantee of exact fitment for every variant.)

What Is a Ride Height / Headlight Level Sensor?

Function: The level sensor measures the distance between a specific point on the vehicle's suspension and the road, sending this data to the control system to automatically adjust headlight aim and, on air suspension-equipped models, ride height.

Working Principle: A linkage arm connects the sensor to the suspension, translating suspension movement into an electrical signal. On air suspension vehicles, the control unit uses this signal to manage compressor inflation and deflation; on headlight systems, it adjusts beam angle to compensate for vehicle load and pitch.

Importance: On modern Mercedes-Benz platforms, an accurate level sensor signal is essential for correct automatic headlight aim and, where equipped, proper air suspension ride height control.

Common Failures & Signs: Headlights that fail to self-level or aim incorrectly. Air suspension warning light on the dashboard (on equipped models). Uneven or inconsistent ride height. Suspension system fault codes stored in the vehicle's computer.

Key Features

OEM-standard fitment - matches factory mounting and electrical specification for the A0045429918 application, front or rear position.

Durable ABS construction - built for stable, reliable performance and long service life.

Precision manufacturing - built to tight tolerance for accurate signal output.

Excellent fitment - direct plug-in replacement, no modification required.

Tested before shipment - every unit checked for proper signal output before packing.

Reliable performance - restores factory headlight leveling and suspension height control.

Benefits

Importers - covers level sensor demand across nearly every current Mercedes-Benz model line from one part number.

Wholesalers - exceptionally high turnover given the breadth of vehicles using this sensor.

Repair Shops - tested unit reduces comeback risk on a common lighting or suspension repair.

Distributors - private label packaging available for building a branded catalog.

End Customers - restored headlight leveling and ride height accuracy.

Packaging & Shipping

Standard export cartons. Customized packaging available for distributor branding. OEM-style and private label printing on request. Container loading handled directly, with mixed-SKU consolidation for smaller orders. Worldwide shipping to Europe, North America, South America, the Middle East, Africa, and Southeast Asia.

Why Choose GSK Auto

GSK Auto manufactures factory-direct, keeping pricing tied to production cost. This sensor is built to OEM specification and tested before packing. We support low MOQ, private label packaging, and worldwide shipping, with our technical team available to confirm fitment before you order.

Call to Action

Sourcing ride height or headlight level sensors for Mercedes-Benz models? Contact GSK Auto for a wholesale quote, catalog, or OEM/private label cooperation.