Hello, yesterday I accidentally put 5L of petrol into a VW Golf 1.9 tdi bj 2004, then I was recommended (fuelling station, customers) to fuel diesel. So I put 5L on 41 liters of diesel – residual diesel in the car about 5L. After that I drove 400km already, it goes on and off. Please help me!! Could something else go wrong? Did I do something wrong?? It’s not my car, that makes it even worse.