Transfer Case Fluid Service Important for AWD Vehicles

The transfer case in all-wheel-drive vehicles, including those from Mercedes-Benz, BMW, Audi, Porsche, VW, Volvo, Jaguar, Lexus, Toyota, and Honda, requires regular maintenance to prevent expensive repairs. The transfer case splits power between the front and rear wheels, and over time, the fluid breaks down and collects metal particles from normal wear.

If left unchanged, the fluid can turn into sludge, causing internal damage. For the Mercedes-Benz G-Class (W463A), servicing the transfer case is relatively simple and can be done with an 8mm hex key. 5 liters of fluid. It is recommended to inspect the transfer case fluid every 60,000 miles or sooner if the vehicle is used for towing or driving in heavy traffic.

Failure to do so can result in internal damage that may not be covered under warranty. Regular transfer case fluid changes can help prevent costly repairs and keep the vehicle running smoothly.