Hi, What is the correct way to activate the air con. Is it to press the "EC" button and turn the temp dials to blue? As I don't have the manual yet, I'm not totally sure. Also I've got heated seats, the button has two settings, If I press it up, one LED lights, If I press it down 2 LED's light up on the switch. Is this for extra heat, or does it mean that the rear seats are heated too? Cheers Amo 1998 S280 W140 UK

the EC button wouldnt bring on the AC compressor, its also the two lights on the seat heaters mean more heat, as one light is low, two is high.