An oil leak at the rear of a 2010 Range Rover or Range Rover Sport may be evident. The leak may be caused by engine block porosity at the high pressure oil gallery.
Remove the flexplate to gain access. Use a dye penetrant to confirm the leak (upper right area inside the bellhousing area of the block). If the leak is confirmed, Using a suitable material, roughen the cast surface inside the engine pocket. Using a suitable solvent type cleaner, thoroughly degrease the cavity inside the engine pocket and around the rear seal cover. Repeat the cleaning process five more times.
Mix Devcon Aluminum Putty as instructed. Be sure to consult the putty instructions regarding hardening times and mixing details. The engine must not be started until the putty has fully cured.
Use a spatula to fill the engine pocket. A minimum of four hours of drying time must be allowed prior to starting the engine. Reinstall the flexplate following the service manual specifications.
Road test the vehicle for approximately 10 miles under a variety of road speed and engine loads and confirm that the engine is no longer leaking oil.