Audi is a very well-known brand that always keeps an inspection on perking-up the customer service. And if I talk about Audi A4 and A6, then I must say that both the models are recognized internationally for their stellar performance. However, even the best can fail on the odd occasion. Thus, the transmission issue in Audi A4 and A6 would not be that surprising. If a motorist stays aware of the cause and warning symptoms, then he can prevent the issue from becoming worse. Whenever your vehicle’s transmission becomes sick, consult a versed car technician straightaway.