Was leaving house, car started shaking violently so i drove back home, engine light turned on. have been waiting long before this happened to hear back from audi about oil consumption warranty recall, car was under 80k mi at the time i made report, had already paid for the required tests they needed, took them 4 months to finally get back to me. received special case since it was a pre owned vehicle & could not provide them with the service maintenance records since i had just purchased vehicle, not the dealership nor audi have been helpful with obtaining that information. now they are saying they are not willing to fix it or buy back.