Mercedes-Benz W167 Front Differential A1673305500 - Used Original Parts

Diagnosis and Common Symptoms

Drawing from my diagnostic experience at M.S. Motor, front differential wear on the heavy W167, chassis is a known drivetrain issue that requires precise mechanical intervention. The most prevalent symptom of a failing A1673305500 front differential is a distinct whining, howling, or grinding noise originating from the front axle, which typically scales in pitch with vehicle speed and becomes pronounced under load or deceleration. Drivers may also report a severe binding or clunking sensation during tight, low-speed turns, indicating worn spider gears or failing pinion bearings. While this is a mechanical failure that does not immediately trigger a direct check engine light, severe internal binding can cause wheel speed discrepancies, leading the vehicle's computer to display a "4MATIC Inoperative" error on the dashboard. Physical inspection often reveals weeping axle seals, excessive radial play at the pinion flange, or heavy metallic particulate suspended in the drained gear oil.

Introduction

When replacing a critical 4MATIC drivetrain component, utilizing a Genuine used part ensures factory-correct gear meshing, metallurgy, and structural integrity. This specific front differential assembly has been rigorously inspected and bench-tested to confirm smooth rotational operation and zero excessive bearing play. By choosing a Genuine used and fully tested differential, you guarantee the exact torque tolerances engineered for your vehicle, avoiding the reliability risks associated with unverified aftermarket rebuilds.

Product Details

• Brand: Mercedes-Benz

• Model Compatibility: GLE-Class (W167)

• Part Name: Front Differential Assembly A1673305500

• Condition: Genuine Used (Tested Working)

• Notes: The unit is drained of fluid for safe shipping and must be refilled with the manufacturer-specified gear oil prior to operation. We highly recommend installing new axle seals and inspecting the driveshaft flex disc during installation to ensure a leak-free and balanced drivetrain.