s4 b5 weird thing happened
so on the drive down to see the folks the car started hunting. sitting st a set of lights she revd up to just over 1000rpm and then dropped down and almost cut out. it only again a few miles later.the traffic was fairly heavy. after that it was fine but then a few miles later the dash beeped at me. not fuel or water. ran the self check and all was fine. no errors on the dash. happened again a few miles later. after that I pulled in and again the self test was fine. visual check under the hood and all looked good. once I hit the motorway she flew no problems at all. all fluids are good. will the ecu log why she beeped?
any ideas. she is going for a service at the end of the month. but am weary no of driving her. don't think its mechanical. maybe eletrical. any thoughts much appricated