Still familiarizing myself with the (new to me) '01 LW300. Went to check fluids just for peace of mind and found only a red screw-off cap for the transmission fluid. On removing this, there was no dipstick. Fluid color looks good and smells right but how do you determine the proper level? I also heard that there is an external filter for the transmission. should be easier than having to drop the pan. Car came off of a lease so I'm just being suspicious of any maintenance that might have been missed and watching for any potential problems. So far, I'm loving it though. Oppie