Every winter the EC (Economy Mode) light comes on & stays on. No problem for winter but when you need the AC in the summer the EC mode keeps the AC from working.

The local MB service guys replaced a control unit a year and a half a ago. Winter of '07, you guessed it, the EC problem popped up again. Last June they decided to replace the AC compressor & receiver dryer.

Guess which light lit up last Monday? Yup. "EC." Won't turn off.

1) Anybody know how to turn the EC off?

2) Does it sound like the dealer service guys have a clue?

3) How do you contact a zone rep & can they be helpful?

Thanks~