see240wag

The temperature down here is 95-100 degrees and the air conditioner is blowing but hot. What should I check for?

Glyn M Ruck

First check is refrigerant level in the system.

Gynecologist MD

Throw it to the dealer, I had the same problem and they fixed it for a whopping $1000+

Glyn M Ruck

Go to an a/c specialist - stay away from the dealer.

04mbc230

They are called STEARSHIP for a reason.

Glyn M Ruck

The only thing you need to tell an A/C person that does not know Benz cars is that the aircon won't switch on at all if refrigerant pressure is low. There is a pressure switch in the system that cuts the aircon to protect the compressor. Some Indy shops don't know this & get confused.

They must pressurize the system first & then the swash plate compressor will operate.

see240wag

Took the car to the dealer. Found to be a bad evaporator. This will be the third one installed in this car. The first one at 2 years old was on account of mold. The second one blew out in the summer of 2008. This one comes 2 years after the prior failure. Luckily I have an extended warranty. However, I am taken aback by the lack of reliability of the air conditioning systems in these cars.

TemjinX2

that weird, mines a 02 and i'm still on the original evaporator. Mine was blowing hot air too until i recharged the freon. Maybe you just got a evaporator built on a monday or friday...

Glyn M Ruck

I'm staggered. Evaporator failure is rare - the mould issue is not but seldom leads to replacement. Is this the same dealer? I wonder if they have got it right.

Pleased you are covered by warranty
Good luck