I had a 2010 LR4 and currently have a 2013 LR4 and both trucks encountered a faulty water pump at around the 30k mile range. Both times, I noticed the smell of coolant from the engine area. Obviously the repair is covered under warranty on both vehicles and while it could just be my own darn luck, it doesn't hurt for you to take a whiff or simply ask your dealer to perform some testing.