Hi, I have just had my A4 2.0tdi serviced at an independent garage and before I took it in it was saying service due. However now when I press the spanner it says "miles ---" and "days ---" It used to work before. It was serviced last week and I've done about 150 miles. Should it take a while to update? it was on variable service but im going to get it done every 10k regardless? I have a fully registered VCDS but haven't had a chance to hook up yet. Anyone know?