VW beetle overheating
I have a 2000 VW beetle that recently had a radiator flush and new coolant put in. Now I can drive it for 20 minutes and it starts to overheat. If I turn it off the problem resolves itself for another 20 minutes. The thermostat was replace 2 weeks ago. There is a small coolant leak, but I keep the coolant level topped off. Any ideas/