Differential for R-Class generation V251

The differential is the final-drive unit that transfers engine torque from the transmission to the drive wheels while allowing the left and right wheels to rotate at different speeds in a turn. On Mercedes-Benz vehicles, it is mounted between the driven wheels — in the rear axle on most RWD models, or within the front/rear axle assemblies on 4MATIC versions. It works under constant load from acceleration, highway cruising, towing, sharp temperature changes, and shock loads from rough roads, so condition and correct specification matter.

When a differential begins to fail, the signs are usually easy to notice even without a mechanic. A deep humming or whining that rises with road speed, a clunk when shifting from drive to reverse, vibration from the rear or front axle area, or fluid seepage around the housing are all strong indicators. On turns, a worn unit may produce binding, knocking, or a noticeable dragging sensation. These are part-specific symptoms that point directly to the differential rather than a general drivetrain issue.

Choosing a genuine used OEM Mercedes-Benz differential is the practical alternative to an aftermarket copy: original fit, factory gear ratios and mounting points, proven durability, and major savings compared with new dealer pricing. At imcar.com.ua, every differential is matched precisely by VIN/chassis number before shipping to ensure correct fitment, and each unit is securely packaged for safe international delivery. Order with confidence and get the right Mercedes differential the first time.