Automatic Transmission
 

Can somebody tell me the quantity of transmission fluid needed in S320 gearbox oil change as there is no dipstick with this model.

With no dipstick, I am assuming you are referring to a 722.6 transmission. You will need to buy a dipstick if yo want to change it. You cannot just blindly put a certain amount of fluid in. With a sump and torque converter drain it should take in the neighborhood of 8 quarts. Change the filter too. And the fluid has to be at a certain temp to get an accurate reading of the fluid level.

Thanks very much for your quick reply

No problem, and what year S320 are you referring to, 97 or newer?

Also, the 722.6 5 speed electoniccally controlled transmission only has the MB fluid as the approved fluid. This fluid must be used and runs around $13-$15 per quart.

Thanks Ali, it is a 98 model 140 series.