I have Mehran VX 08. Its speedometer was working fine untill I opened it to set odometer which was not functional. When I replaced back it began to tell speed incorrect about 20kph less than real.
Then I bought a new one and connected. This tells speed about 20-30 more than real speed. When I reduce speed, speedometer needle comes down very slowly. Moreover temprature meter needle wobbles with indicator lights when they blink.
strange speedometer problem. Plz any suggestions