I need your help. My 99 E320 blows cold air out of the R/H side of the car but warm air out of the left with the A/C on regardless of temp setting or auto/manual setting. I have verified that all of the actuators are moving as they should. I checked the codes in the a/c control. I showed that it had a bad evaporator temp sensor, so I replaced that and it still does the same thing. Any Ideas or solutions?

 

Run these tests post the values 1-8 and the errors.
http://www.eclassbenz.com/node/27
But first go into the error mode and clear any errors by pressing the two auto buttons at the same time.Then run the tests at the temps in the instructions.
Could be a stuck duo valve,post the numbers first and then we proceed with the solution.
ohlord

 

I went through this agonizing crap last year. It was brutal. The advice was great from everyone. Bottom line, I had contaminated freon in my system. It had to be evacuated twice. Upon the initial inspection, a hose on the low side(?) was shot and they replaced that hose. My A/C is cold as ice now and I love it. Before you get all hung up on a new compressor, dryer, evap etc.... AND you find that your duo is okay - or not okay as the case could be - try the evac and charge routine at your local indie shop. A hose inspection should be asked for too. Good luck. I truly hope that you have a ridiculously small issue that costs you next to nothing to fix. [8D]