I need help identifying what needs to be fixed. I think my repairman is just chasing the problem through the car. My 2011 LR4 had a slow coolant leak. I refilled a couple of times over a week but no overheating. Then my cabin heater stopped working. A couple of days later I had an overheating warning and pulled the car over. Had car towed to repair shop. They replaced the water pump and thermostat and some hoses. Seems like a reasonable repair solution. 4 days later I am leaking again but the leak is linear under the car almost in line with the radiator. Repair shop says I need a new radiator. Another shop thinks it is a head gasket. Either way, it's going to be an expensive solution. I don't want to chase the problem with money. Any thought as to what would cause this leak?