AC SENSOR VALUES AND ERROR CODES: SENSOR 7 EFFOR 416 NO COLD AIR AND HI PRES. W/REFIL



My 2001 CLK430 Cabriolet has:
- no cold air,
- error code 416,
- when attempting recharge high-pressure reading on can of recharge [ possibly indicating compressor no engaged];
- sensor number 7 will move from a value of 8 to 9 when a turn ac off and on while driving
Thanks Anyone and Everyone


