Can you put a Mercedes 3.5L diesel in a 1998 range rover p38?

Yes, it is technically possible to swap a Mercedes 3.5L diesel engine into a 1998 Range Rover P38, but it would require significant modifications. This includes adapting the engine mounts, transmission, and possibly the wiring and fuel systems to accommodate the new engine. Additionally, ensure compatibility with the vehicle's electronics and emissions regulations. Such a project can be complex and may not be practical for everyone.