I have a 2015 Jetta 2.0 TDI. I recently drained and refilled the coolant. Shortly afterwards as im driving down the road my low coolant dash light came on so I pulled over to check it out. Upon popping the hood there was a real strong smell like something was very hot and distinctively like something electrical. No smoke tho so I don't think anything was melted. And also not a drop off antifreeze left in the tank. I