When driving at about 40, going steady, not accelerating or decelerating, my G/f has reported that the car randomly 'shakes' for a few seconds. It has done it twice in the last few weeks.
She doesnt know anything about cars so couldnt give a more detailed description than that.
I took it out for a test drive and it seemed perfectly fine. Brakes ok, doesnt hesitate when accelerating etc and no vibrations through the steering wheel. Fuel consumption is still good too.
Does anybody know what else I could look for? Where is the diagnostic socket on the Corsa B so I can do the paperclip test?
If it was my car I wouldnt mind so much but I dont want her getting stranded on the country roads she has to drive on to get to work.