In the user's manual for my 2008 A3 SE TFSI automatic it gives a warning that cruise control should be switched off at the end of every journey. Do you know if this is a safety issue, so that you have to make a conscious effort to re-engage it next time - or whether there is some mechanical/electronic impact if you fail to do so?

I bought the car second-hand from an Audi dealer and had to have a new gearbox Mechatronics unit fitted - all done under Audi Approved Warranty - and wondered whether this in any way reflected how cruise control might have been used previously?