MILIN1609

Hi,
Since yesterday, my 2001 S430's "AC off" switch next to the digital gauge under the screen is not turning on. It was working fine in the morning. But all of a sudden that red little light on it came on stating it is off. and generally by pressing it the AC turns on. but no matter how I press, the AC is not engaging. Any clue? Could it be just a fuse OR something major?
Thanks whoever wants to advice.

02S430

try the fulses doesnt hurt to try and best of all its free and a DIY

DarrenCT

...your system is low on freon (or whatever is in there nowadays). same thing happened to my 01clk55. it's a safety override that if the system is too low, it won't let the compressor turn on otherwise it could burn out the compressor.- hope this helps.

Baked Benz

Thats a good feature to have, pity it does,nt tell you thats whats happening too.

MILIN1609

Can someone pinpoint, where the AC fuse or fuses located at?

How easy is it to add freon in S430?

DarrenCT

..I had the dealer do mine(was warranty, minor leak at a fitting), they also need to test it for leaks. shouldnt be too $$$ though, then again, it's a benz

massssoud

One more thing,

Once re-gassed, you should reset the system by star-diag!!
It does not automatically detect the gas in the system

Hope it helps

MILIN1609

What is star-diag?