You push the button under the dashbord and keep pushed in and at the same time switch on the ignition, then will the indication on the speedo start flashing with the current calibration and will go from left to right automatically if you don´t do anything and then goes over to km reading.
I am lifting this tread as I found it very helpful. I made the changes last night and this morning I was going to test it against my satnav. When I turned the key the speedo needle positioned to 10 km)h before I started. I switched off the engine and turned the key again. Then the speedo raised to 20 km/h. After another switching of the ignition key the speedo needle started on 50 km/h. My heart beat started to raise and I blamed myself for fiddling with the speedo. Despite the wrong speedo I drove off for some kilometers and stopped the car. Then I tried to calibrate the speedo to th original value, but without success. I then dove off again and stopped after some kilometers. The speedo sill malfunctioning. Then I started again to drive back home without trying to calibration the speedo. Then all of a sudden the needle went down to the zero position. I started to drive and the speedo showed 10% to much. Then I made another stop, re calibrated again, drove off, stopped and started the engine again - wioah! the needle whwnt down to zero and the speedo is now 5% over. Another daY I will make it down to 1%.
Am I the only one with a car with this behavior of the speedo calibration?
//Bosse
