In order to check or change trans fluid on BMW vehicles with no dipstick a hoist or set of ramps is needed. Remove upper plug in drain pan under the vehicle. make sure vehicle is running for level inspections. Do not run vehicle if draining fluid!
proper level of oil when vehicle running is level with opening in side of trans oil pan.
This vehicle do not have a transmission filter. All you have to do is drain the trans. fluid and refill.
they don't have one, instead its a plug with a valve that specialize mechanic, trans. shop or the dealer can refill or add fluid to the automatic trans.
You have to refill it through the trans dipstick tube.
which trans automatic or stick 4x4 or 2 wd ?
If your car is the 2.4 version then I can help. Under your intake tube their is this little RED Cap on top of your transmission. You have to drain your trans first then unscrew the RED cap and refill transmission with 4 quarts of trans fluid.
They drop the pan on your transmission and flush the filter and then refill the transmission with fluid
On the manual transmission the dip stick is also the speedometer cable mount. When you remove the cable from the back side which is between the motor and firewall you will see the dots on the housing that holds the speedo gear. This is also where you refill the trans. I think it is easiest to just drain the trans and put the recommended amount it takes to fill it.
Trans Dipstick
Believe it or not on automatics there is no dip stick for trans. there is a plug on trans. like manuals have and it is checked that way
if this is azf trans you remove the trans oil pan by removing the 6 bolts around the pan using a 10 mm socket. you refill through the dip stick tube or filler tube
All you can do in your driveway is drop the trans pan, replace the trans filter, replace the trans pan gasket, install pan (no gasket sealer needed or required!) and refill what fluid drained out in the process which is aprox half of the fluid the trans holds. Take it to a trans shop if you want a complete fluid change. They will have the equipment to do a trans flush.
For automatic trans you refill the fluid thru the dipstick and for manual theres a fill hole in the tranny..