Regardless of the language, we have no reason to believe that Christ ever referred to Himself as a servant of God. He clearly put His Father's will above His own, but that does not reduce Him to servant or slave status...in any language.
On the other hand, He quite clearly identified Himself as Son of Man, Son of God, and God. I don't know when Mohammed met Christ, since he was born 600 years later and obviously not a Christian, so I would have to deny the entire OP verse as inaccurate in any language.