Servicing Mercedes-Benz ADAS Systems
A great piece of advice is not to erase codes to see if they come back.

U880E/AF50-8 Electronic Information
The TCM makes contact with all the transmission solenoids, fluid temperature and speed sensors at this connection.

Subaru CVT Transmission Diagnostics
If noise continues while FWD is active, the CVT assembly most likely needs replacement.

Key Diagnostics And Programming
Key and security system diagnostics are not that much different than driveability diagnostics.
