C270 cdi
 

My C270 cdi runs on 2nd gear only. What could be the problem

What exactly do you mean? Do you have an auto gear box and it only selects 2nd gear? I have heard that the C Class gearboxes have an electronic controller which is reputed to be unreliable.....but easily changed. If its a manual the linkage may have slipped around but then you would get 1 and 2 or any other pair of gears. We need more info friend. Gary.

Thanks Gary for the response. Actually my C class is on auto transmission, after replacing the transmission fluid it got better, however during cold run (in the mornings) or after a long day parked, it start on low gear probably 2nd or 3rd.