Please can anyone advise. I have just bought a 206 cabriolet 2002. On test drive the speedo was fine. The seller then took it for MOT and service and had to have the brakes and discs replaced. I then had the car and on the first drive I found the speedo to be faulty. It shows 20mph but in fact it is doing 30-35mph. My husband then drove it and said that the speedo took some time before it started showing the speed. He agrees the car is driving faster than the speedo is registering. Could the work done on the brakes etc have effected the speedo? Can anyone advise please before I get ripped off for being a female driver!!!!