This is the second one first one was last month, was they found some issue with engine which needed to be upgraded with different parts they made me sign a two page paper permission for them to carry the service recall asked the car for all day give them the car 9am and it was only ready at 16:00, and now got this call again I called and they say engine control unit and I must bring the vehicle to them
this sounds like the infamous vw dieselgatewhat's the engine in your car?