Lr3 Engine Diagram Land rover discovery also frequently just called disco in slang or popular language is a series of medium to large premium suvs produced under the land rover marque from the british manufacturer land rover becoming jaguar land rover in 2013. Lr3 engine diagram. Land Rover Workshop Repair | Owners Manuals (100% Free) How to find your Land Rover Workshop or Owners Manual. We have 205 free PDF’s spread across 13 Land Rover Vehicles. To narrow down your search please use the dropdown box above, or select from one of the available vehicles in the list below.