My oil pressure warning came on and took my 2005 Audi S4 to a Euro specialist. They checked it out and it was just the oil sensor. The defective sensor was replaced. On my drive home noticed smoke/vapor coming from the right side of the engine through the hood. I now have a coolant leak after going to the shop (coolant warning comes on and the reservoir is empty). Is it possible the procedure performed to replace the oil sensor could have resulted in a hose becoming loosened or something else that contributed/created the leak? It must be dumping because the reservoir will go from full to empty in less than a mile.

Thank you!