My freelander 1 started making a noise in the engine like a whistling sound. In the rear view mirror was grey smoke it started loosing power and would not go more than 50 miles ph. After pulling over in a lay by the engine juddered and smoke came from the front and black smoke from the back. It won’t turn over since then. AA says the engines seized, independent Machanic thinks turbo has gone and blocked the jets. Not sure what to do. Only 71,000 miles o the clock. Oil in engine.