1977 to 1981 Climate Control Servo Repair Options for Mercedes Benz

For good used: mercedessource.com/store/sear...
For rebuilt servos: www.perfanalysis.com
For electronic upgrade: mercedessource.com/store/acc-...
On demand in depth videos: mercedessource.com/store/sear...
For inexpensive bypass: mercedessource.com/store/1977...
Best options for replacing a failed servo. How to get your heater working again. Heat won't turn on or off? Best climate control repair parts. 1977 to 1980 models with vertical push button panel.