I have had my Jetta for a week. My speedometer is out by 10 to 12 klms at all speeds. The dealership tell me that is acceptable. The complaints department also told me there is an allowance for 10 to 12 klms. My speedometer will read 80 and my TomTom will show I am going 69klms. My GPS was always bang on with my old car. Does anyone else have this excessive difference.