On my first start of the day, my air conditioner comes on for about 3 seconds and then stays off while I drive 1 to 2 blocks,, that it will come on and work properly for the rest of the day, anybody else have this problem is this normal or is this just my car? jim

 

Mine comes on about 5- 10 seconds after I start the engine. Then stays on.

Best AC I ever had in a car! COLD!

 

I don't have summer and winter it is summer year around here and my ac is cold it just ( start the car (with the ac on) The air conditioner blows like crazy, and in that 10 seconds or so, it's cold pretty,Then it stops blowing for approximately 1 to 2 min. then comes on and works perfect rest of the day. this happened every time every morning the car is cold,( car has a run for hours cold)) jim

 

Jim, that is odd and I dont have that operation here. If I punch it hard the a/c goes away for some time until the vacuum returns, I have never checked that but WOT causes a/c to stop during the thrash.Woody

 

Yes Waldig mine does the same thing at wot but the strange thing is it will sometimes run while i'm backing out of the driveway as soon as i move forward about 20 ft. it goes off and about 2 blocks later it comes on,,, i have to try it at idle and see if it does it there. I am going to go out and start the car ( yes the ac is on it stays on down here ) let it idle for a while and see it it does the same. jim

 

Well finally my air conditioner stopped working, after doing some research on here, I found out that it could be the resistor, which sits right on top of the fan , underneath the globe box you remove one panel, then you remove the second panel, and you were there. The resistor listed the Chrysler dealer at over $400,and that the Mercedes dealership just under 400.. I found one online for $60, took about 10 min. to put it in, two screws and it's out, use the old red wire because the new was not long enough.

Mine is been running about a week now with absolutely no problems. Jim

 

Hey Jim, where did you order the part from? My AC recently started doing this and I would like to fix it.

 

http://www.autopartswarehouse.com/details/QQMercedes


This is what I put in the search Blower Motor Resistor 2004 mercedes slk320

2001-2004 Mercedes Benz SLK320 Metrix Blower Motor Resistor
Part: W0133-1716561 Mfr: W0133-1716561
$268.00 $68.95
Quantity Sold: Sold individually
Anticipated Ship Out Time: Same day - 2 business days
Learn more >

 

I'll have to get one too, thasnks for the research.