2005 E320 AC red light flashes on then off. No cold air. Whats the problem? Thanks

SOURCE: ac problem, passenger side is cold driver's side is not.

Hello, Here is a way to ck the codes in the climate control system.
Ignition ON
Temperature selector Left Hi Right Low
Within 20 seconds, press REST and EC simultaneously for more than 5 seconds
The LED in the car flashes and the display di A
Press auto repeatedly until all DTC's are shown. Record all DTC's
Each malfunction (short circuit, open circuit, etc) has a specific DTC
The letter "E" (error) is displayed in the left of the display and the DTC is displayed in the right of the display. By pressing the AUTO button the next DTC stored in memory will be displayed
To erase, This is only possible after all DTC's are read out
Simultaneously press both AUTO buttons for more than 2 seconds
"d" will be displayed on the left side of the display window and "FF" on the right side
The only problems that I can think of that will cause this problem are as follows;
006 right heater core temp
020 right duo valve
I hop this helps. CYA Gator241

SOURCE: 2005 jeep grand cherokee ac blows cold only on drivers side

I agree, these vehicles have a problem with the blend doors and since the accuators hit the door when it opens and closes, it breaks the doors. and it's a huge job to replace them.

SOURCE: AC blows cold while moving, and gets warmer while I'm stopped

A couple things happen when you come to a stop that affect A/C temperatures. First one has been touched on with the cooling fans. The cooling fan may not come on unless the high side pressure rises high enough to turn on a relay which engages the cooling fan.
When you come to a stop the warm/hot air isn't being carried away by the car in motion not allowing a better cooling effect.
Also when you come to a stop the heart and soul of your A/C system, the compressor, isn't turning over as fast due to low engine RPM. This in turn reduces the efficiency of the system.
Try revving the engine up a little bit the next time at a stop to see if it stays cooler. If it does my first suspicion will be low refridgerant level or a worn compressor.
Make sure your condensor (the one in front of your radiator) is clean and unobstructed.

SOURCE: need ac reset for a 2003 e320 Mercedes

You could need a recharge of freon or your A/C pump is bad. You can go to your local garage and have them recharge with an aftermaket freon kit or the dealer and have them put it on an a/c machine and really diagnose the problem

SOURCE: 2003 Mercedes E320 AC stoped working. Just get

Sounds like you need to take it to an ac shop could have a leak or something going wrong thats your warning light and a would take it to the shop