280 SEL (126.023) vacuum heater/ac problems
Need help with identifying vacuum distribution block located on passenger side panel near console. There is a manifold with six solenoids and vacuum hoses. Would like to know what each one operates. My heater starts to blow cold air while the heater is on once the car is moving, maybe a door/flap is not operating correctly. The manifold is labled 1-6 with color coded circles. #1 red and white, #2 red and yellow, #3 red and blue, #4 green, #5 red, #6 green and blue, also there are two plastic globes (maybe check valves?). Any help in troubleshooting this problem would be appreciated as a manual is not available.
Thanks in advance!