A couple of weeks ago I pushed the pedal a little more while turning right to enter an intersection. I was starting from complete stop and mid turn with the engine reved up I heard a loud bang (something as a metal snapped) coming from the front left wheel. After being able to park I inspected the left and right wheel, removed the left wheel and nothing seems to be out of order. No oil leak and since than the car seems to go well... except when I start the car from still, and push the acceleration a little bit more, the front wheels seem to slip as on ice (like i was driving on ice or snow, but it happens on dry asphalt) and the TC led lights on the dashboard. This also happens in second gear while accelerating more swiftly. Other than that, no noise or anything else. Just this annoying wheel slip and TC that reves down the engine. The car is a European 2.2 2013 dm diesel sport version 197hp 4wd or awd to be precise. Anyone has any idea what this might be and what could cause the front wheels slipping? What should I check next?