"A/C Off" light won't go off...
Thread Starter
Senior Member
Joined: Feb 2004
Posts: 368
Likes: 0
From: Friendswood, TX
'08 CLS63
"A/C Off" light won't go off...
i have a 2004 220 and the "ac off" light won't go off and i need some a/c! i did a A/C diagnostic mode and below are some of the readings...
in car temperature sensor...30.0c
outside temperature sensor...62c
both heater core temps...28c
evaporator temp sensor...29c
refrigerant pressure in bar...6.7 (4 is bar)
refrigerant temp...55c
sun senor voltage...9% (it's cloudy outside)
the first two reading appear to be too far apart as it's about 70f today.
i used the search function but didn't have much luck...any suggestions? thanks in advance, john
in car temperature sensor...30.0c
outside temperature sensor...62c
both heater core temps...28c
evaporator temp sensor...29c
refrigerant pressure in bar...6.7 (4 is bar)
refrigerant temp...55c
sun senor voltage...9% (it's cloudy outside)
the first two reading appear to be too far apart as it's about 70f today.
i used the search function but didn't have much luck...any suggestions? thanks in advance, john
MBWorld Fanatic!
Joined: Dec 2004
Posts: 3,063
Likes: 26
From: Tampa, FL
2005 S500 4-Matic, 1978 450SL
If your refrigerant has been low and tripped the light, the A/C off light will not reset until the system is serviced.
You can troubleshoot your system further here: http://www.benzworld.org/forums/w220...ssue-w220.html but it seems you're getting no cooling - likely low refrigerant.
You can troubleshoot your system further here: http://www.benzworld.org/forums/w220...ssue-w220.html but it seems you're getting no cooling - likely low refrigerant.
Last edited by Skylaw; Nov 19, 2009 at 05:57 PM.
Thread Starter
Senior Member
Joined: Feb 2004
Posts: 368
Likes: 0
From: Friendswood, TX
'08 CLS63
If your refrigerant has been low and tripped the light, the A/C off light will not reset until the system is serviced.
You can troubleshoot your system further here: http://www.benzworld.org/forums/w220...ssue-w220.html but it seems you're getting no cooling - likely low refrigerant.
You can troubleshoot your system further here: http://www.benzworld.org/forums/w220...ssue-w220.html but it seems you're getting no cooling - likely low refrigerant.
btw...do you know how to remove the passenger side rear view mirror...i put a post on the sticky towards the top and got no respose...it seems the 2003+ are different than the 00-02. thanks again!
