Mercedes-Benz W212 Brake Pedal Assembly A2042902001 - Used Original Parts

Diagnosis and Common Symptoms

From the workshop floor, the primary failure point in this assembly isn't the pedal itself, but the integrated brake light switch. A faulty switch sends implausible signals to the SAM (Signal Acquisition Module) and ESP control units. This typically manifests as ABS, ESP, and BAS warning lights illuminating on the instrument cluster. You may also find that the cruise control becomes inoperative, the brake lights are permanently on or fail to activate, or in some cases, the vehicle may refuse to shift out of Park. A diagnostic scan will often reveal fault codes related to "Brake Light Switch Circuit Malfunction" or "Signal Plausibility."

Introduction

The brake pedal assembly is the direct mechanical interface for your vehicle's primary safety system. This is not a component where you compromise. We offer a Genuine Mercedes-Benz assembly, carefully removed from a W212 chassis and subjected to rigorous bench testing. Our technicians have verified the integrity of the pedal pivot and the precise functionality of the integrated brake light switch, ensuring it performs exactly as the original manufacturer intended.

Product Details

• Brand: Mercedes-Benz
• Model Compatibility: W212 (E-Class), also fits W204 (C-Class). Verify part number A2042902001 for exact fitment.
• Part Name: Brake Pedal Assembly
• Condition: Genuine Used (Tested Working)
• Notes: This is a complete assembly including the pedal, bracket, and the critical, pre-installed brake light switch. A direct replacement for a straightforward installation.