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Transmission on 2007 Mercedes-Benz S550

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
To check level of trasmission
(2) Answers
The transmission isn't exactly a "sealed unit". But, special tools are needed to fill and set the level of the transmission fluid. I recommend having a Mercedes-Benz dealership do this for you to ensure the proper fluid is used and the fluid level is set correctly.