The ac on my 99 e320 dont blow at all

HELLO
THE 1ST THING THAT MUST BE DONE HERE IS TO HAVE THE AC SYSTEM HOOKED UP TO A SPECIAL AC PRESSURE GAUGE SET TO SEE IF THE SYSTEM IS LOW ON CHARGE DUE TO A REFRIDGERANT LEAK. THAT IS THE MOST COMMON CAUSE OF NO COOLING IN ANY CAR OR TRUCK NO MATTER THE MAKE OR MODEL

your air conditioning unit has a gas cannister which eventually runs out. You will need to get this re-filled. Check ou yellow pages or on line for air conditioning services. Prices vary.

it is possible that your cabin air filters are plugged

Try closing the windows, the AC on some Mercedes require all windows to be closed for the side vents to work.

Sounds like you need to take it to an ac shop could have a leak or something going wrong thats your warning light and a would take it to the shop

The blower motor and blower motor resistor need to be checked and replaced if one is good and the other bad it is stil a good idea to replace both at the same time, the resistor controls the power to the blower motor. it will be one or the other but replace both .

replaced clutch, driver ac belts on 2000 montero sport a/c is still not blowing cold any ideas

sounds like you have a minor vacuum leak in the system or a weak blend door motor. Your a/c is responding to engine vacuum changes.

You could need a recharge of freon or your A/C pump is bad. You can go to your local garage and have them recharge with an aftermaket freon kit or the dealer and have them put it on an a/c machine and really diagnose the problem

Your Climate control unit may have to be reset. The reset works as follows: With the key in the ignition and in posistion 2 push both the defrost button and the recirc button (at the same time) for five seconds or untill the led lights in those buttons begin to flash. Wait for 30 seconds or untill the led's stop flashing. Switch off the ignition. Check the evaporator temp sensor and pressure sensor for correct functionality.
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