1994 E420 Climate Control
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Joined: May 2010
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From: Richmond, VA
1982 300 Turbo Diesel, 1994 E420
1994 E420 Climate Control
Greetings fellow W124 owners,
Had heated air coming out of side vents so, based on what I've read on this and other fora, I took a chance and replaced the mono valve; nothing changed. Checked voltage at mono valve connector and found Bat voltage at both wires; no ground on Yellow/Green wire at mono valve connector with A/C ON. Could it be a bad CCU? Any way of testing it?
Had heated air coming out of side vents so, based on what I've read on this and other fora, I took a chance and replaced the mono valve; nothing changed. Checked voltage at mono valve connector and found Bat voltage at both wires; no ground on Yellow/Green wire at mono valve connector with A/C ON. Could it be a bad CCU? Any way of testing it?
