EC button - s320

Oct 20, 2006 2 Replies

I have an s320 (2000) and the light on the economy button for the A/C stays permanently on even when pressed. However, the system does seem to blow cold air. Is there any way to check to see if the AC is actually on. Any ideas?


dont know if the diagnostics on your car resembles that of E320 but worth a shot: try this....

formatting link
scroll down....and click on A/C diagnostics and follow instructions. sounds like low refrig...and/or defective refrig sensor ?! wag

thanks .. this is a great site.. the error codes do not work but the rest does. Gives me start.

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required