Parts for the transfer cases of BMW xDrive, Mercedes-Benz 4Matic, VW / Porsche / Audi, Land Rover and Jeep applications - over twenty models from the ATC, NV, PL72, DCD / DCS and VG families. Chains, clutch kits, actuator motors and gears, pumps, seals and bearings, with identification first, always.
The transfer case transmits torque from the transmission to the front and rear axles. The design differs by vehicle: some units use mechanically selectable part-time 4x4, others a center differential, while active AWD systems control the torque split through a multi-plate clutch tightened and released by an electric or hydraulic actuator as conditions change. That is why exact identification of the model is mandatory before choosing parts. Depending on the design, common wear points include the actuator mechanism, chain stretch, clutch pack wear, bearings, the pump and the seals - and a small volume of hard-working fluid that degrades faster than most other oils in the car. A large share of failures can be resolved at component level, provided the housing and main mechanical elements allow restoration and the parts are available - which is exactly what this category exists for.
Our store solutions: chains, friction and clutch kits, actuator motors and gears, oil pumps, bearing and seal kits, and complete overhaul kits across all supported families - OE, OEM and selected aftermarket, depending on the unit.
The exact interval and fluid specification must be confirmed by VIN, transfer case model and the vehicle manufacturer’s requirements. As preventive workshop practice, MID Auto can recommend inspection and periodic fluid changes according to the design and the way the vehicle is used - transfer case fluid works under high load and is rarely part of the standard service schedule. On a 4x4 system error or shudder, the first step is diagnosis: stored codes, fluid condition and level, actuator, adaptations and the mechanical condition of the unit.
