RE: Error code P0705 and limp mode
Call the manager of the car wash,they got liguid in the trans module it went into limp mode.Sometimes the unit can be dried out sometimes it gets fried and a replacment is needed.
See trans module on benzworld.org w210 section in the diy area.
You can never get liguid in the shifter it is a big no no.pm me and we can talk about a posssible solution .do not drive the car until you try some solutions.
the code P0705 Transmission Range Sensor Circuit malfunction (PRNDL Input)