Greetings,
My CLK 350 has 210,000 miles and it was running strong until recently when the check engine light lit. The car shuts off while driving and when I try to restart it turning the key nothing happen. No click, no starting solenoid, and only the dashboard lights work. After a minute, the car starts and runs normal. I changed the Crankshaft Position Sensor and the problem still there. Here is the list of codes:

P2096 current -Mixture at Cyl Bank 2 at Idle Too Rich
P2092 Current-Mixture at Cyl Bank 1 Too Rich
P0750 Current- Mixture at Cyl Bank 2 Too Rich
P0064 History- Adj of Exhaust Camshaft
P0059 History- Position of of Exhaust Cam Shaft
P0077 History
P2096 History
P2092 History
P0750 History

Is there a sensor or sensors that I need to check/replace? Any tutorials, thank you in advanced.