mwb928

Today, my 2003 W211 e320 air conditioning stop working. The AC switch in RED all the time and blinking 5 times whatever I press the button. I fill R-134a but still could not turn on the system. I know I could not check the system unless the system is in running. After I did some search on internet, I am noticing I need to reset the system. Within these few weeks, the air conditioning looks like not enough R-134a and cool down the car very slow until stop working today.

Could someone direct me how to reset the system and which tool I need and where to buy?

Thanks in advance for all information.

Eric

Plutoe

Who ever told you there was a W211 AC reset practices voodoo!! There aint one!!

You need factory or equal software to determine the fault and a set of gauges to determine the refrig quantity!!----Yep you have to spend some money or sell the car!!