Troubleshooting and Repair turbo boost performance code Mercedes MBE 900 Diesel Engine The Turbo Boost Performance code means just what it says. There is a low boost reading that the motor control module (MCM) has detected and that’s the reason for the fault code on the dash. The Detroit Diesel Diagnostic Software is a tool… Continue reading Mercedes MBE 900 Turbo Boost Performance Code Troubleshooting