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The servo shown in the attached pics has me baffled. It is the one all the way at the far right in the picture (driver side here in the US). Seems like the screws to remove are only accessible from underneath the servo.
To remove that servo, loosen HVAC hose bracket to the right of the yellow connector holder, disconnect linkage arm, remove the screw that is through the slot on the plate, then remove the plate/servo forward and to the side. That plate has a tab which engages a slot on the plastic case of the HVAC.