Transmission oil

[JeffreyP]

Hi all

My 98-E320 has about 50,000 miles on it. As I search through the forum, I realize that the transmission is sealed and the T. oil is for life. However, I went ahead a have my mechanic change the T. oil anyway for peace of mind. I don't believe he drained it out of the torque converter but at least there are about 70-80% new T. oil in there which may work for another 50K. He was careful enough to add the same amount of T. oil that was drained so it seems OK. Here are my questions though:

1. Where is the torque converter drain plug?

2. There is no T. dipstick, how can I check the T. oil level? Where can I get one?

3. What is the proper procedure for checking T. level? If there are overfilled, how can I drain some?

Thanks in advance,
JeffreyP