Use to determine fluid level of the 722.6 transmission. Fits: 722.6
The 140-1521 dipstick fits all MB’s with the 722.6 transmission, so the amount of the dipstick that sticks out of the dipstick tube is different from model to model since the tubes are different lengths. So, if they think it should go all the way in, like most regular cars do, and they jam it in they will bend the end.
This is a tool, it does not stay in the car. it is just for measuring the fluid level while servicing the transmission.