TC BY Maserati V6-181 2972cc 3.0L SOHC VIN S FI (1991)
7. Remove eleven heater-A/C unit cover attaching screws going downward into the housing and lift the cover from the heater A/C unit.
8. To reassemble, lower the heater-A/C unit cover into place. Then guide the panel air mode door pivot shaft into its socket and reverse the preceding
operation.