W126 - Cooler Vent Temps At Slow Vs. Highway Speed
Had local MB tech check low/high side pressure. Checks out. Getting 52 degree air at center vents at highway speed. If I exit the highway and drive around at say 25-35 mph, I soon see vent temps drop to 45 degrees.
Local tech indicated this could be the result of a long list. The car is 11 yrs. old and is equipped with orig. compressor, etc. - R12. Compressor seems to cycle often at highway speed. Suspected overcharging, but again, pressure check indicated all is well.
Serpentine belt is in good shape and properly adjusted.
I suspect an aging clutch and /or expansion valve.
1991 300-SEL - Model 126
M103 - SOHC
James Madison - Oppressors can tyrannize only when they achieve a standing army, an enslaved press, and a disarmed populace.
Liberty Firearms Training - After years of trying to regulate California criminals with a never ending stream of gun control laws they have still not given up with the belief that if they make something a crime that criminals will miraculously start obeying the law.