Question about 2003 Mercedes-Benz C-Class

Open Question

My "AC-off" light is on all the time on climate control panel. There is no cooling on the lowest temp setting, AC compressor does not turn-on. Tried to recharge AC system but compressor stays off. Also tried to reset the climate control by pressing both Recirc and Defrost buttons, no change, "AC-off" light remains on. At each ignition turn on, there is unusual flapping sound coming from beneath passenger side dashboard; this occurs eight times then it stops (perhaps on of air flops is trying to clear home position); I?m not sure if this is related to AC-off problem. Can anyone help suggest next step, check or sollution?

Posted by on

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why is my AC compressor running when my temperature control is set to heat, fan control set to 2, AC control switch off and air flow control set for floor?


If you have an automatic climate system where you can set temp the the compressor will run at some of the middle settings. The system blends cold and warm air to obtain the desired temp setting. If it does not have automatic control you have another issue.

Oct 23, 2014 | 2003 Mitsubishi Galant

Tip

Climate control settings,on all vehicles


When using the ac on a hot summer day,or a mild spring day,the compressor runs all the time.If you set it to low,and turn the temp to cold or toward the warmer side,lets say cool,then the ac compressor runs also,it just cycles,on,and off.No matter what setting you are using on your ac control,the ac compressor stays on,using fuel.Get the most out of your ac,while it uses your fuel,to keep you comfortable.All vehicles have a MAX setting,or a recirculate setting.Always use this setting.I say,always use this setting,not only that,but use this setting.I stress this because you are pulling in air ,from the out side,that is warming the evaporator,and making the ac work harder to give you comfort.In the hot ,hot summer,the settings MAX,and recirculate,keep the air that is in the vehicle,in the vehicle.It recirculates the air,instead of bringing hot air inside the vehicle ,and bringing the temp,up,to a warmer temp.A lot of people don`t even know that this is on the control,or don`t know what it is for.Some times the recirculate button,or dial,will have a picture that looks like a C,but squared off at the corners.So folks,get more out of your vehicles cooling and heat system.Yes ,this will work on heat also,maybe not defrost,but on some cars,it will work.

on Dec 08, 2009 | Chevrolet 1500 Cars & Trucks

1 Answer

Malibu heating and ac


does the car have automatic climate control?

Apr 05, 2014 | 2005 Chevrolet Malibu

1 Answer

Cooling fan runs all time


If you mean all the time when the ignition is on, this may be correct, depending on how you have the climate controls set. Anytime you have the climate control in an A/C mode, or whenever the defroster is on (look for the squiggly lines icon on the control), the A/C compressor runs and thus so will the cooling fan. To be sure, place the climate control in the heat mode with the air directed to the floor vents, As long as the engine is at normal temp, then cooling fan should be off in this condition.

Nov 30, 2013 | Chevrolet Cavalier Cars & Trucks

2 Answers

Heater core and ac working @ same time


they always are on at the same time, the air temperature control blend door controls the outlet temp. It is broken or the electric motor that moves it is boken or both are defective which is the usual case,.

Apr 28, 2010 | 1995 Lincoln Town Car

2 Answers

Ac/temp will not change from heat to a/c


hi you might need your AC recharging, after a time the gas from the AC tends to leak out ( as all gasses do ) you could try getting this boosted, better not say that if american might get wrong idea, maybe recharged is a better way of saying it..lol, hope this helps

Feb 23, 2010 | 2000 Oldsmobile Bravada

1 Answer

2001 BMW X5 Climate Control (AC) not working


its not a fuse i had the same problem on my 03 x5 it an ac resistor thats at fault it controls your fan once it goes your fan wont come on or comes on intermitently once again the faulty part is a blower motor resistor should be 100 bucs at dealer or if you shop around i got mine for 75 from local parts store (carquest)

Sep 20, 2009 | 2003 BMW 5 Series

1 Answer

The ac compressor runs and cools properly when temp is cool,but on warmer days it will run then kick out and will not kick back in for several hours later.All pressures are good...the freon charge is...


What year is the vehicle ? The A/C button on the control panel is a direct input to the PCM /ECM - engine computer . The PCM/ECM energizes the compressor clutch relay to engage the compressor .

Apr 13, 2017 | Oldsmobile Cutlass Supreme Cars & Trucks

3 Answers

Just brought used 94 cadillac deville ac works great but no heat


This is the the Cadillac Climate Control operates. When you press AUTO, the system will automatically maitain DESIRED temp . The A/C compressor will operate ALL THE TIME on AUTO. Don't want the a/c compressor to operate, PRESS " ECON". Air delivery will NOT be DE-HUMIFIED, nor will it cool, only warm,. Hope this helps.

Apr 15, 2009 | 1994 Cadillac DeVille

1 Answer

Climate control


when the ac blows warm you need to stop and see if the compressor clutch is working (pass side front lower of engine),set the temp to max cold turn the vents to blow out the center area turn the fan speed on 3 or 4 and tell use what it does

Aug 18, 2008 | 2000 Volvo S80

Not finding what you are looking for?
2003 Mercedes-Benz C-Class Logo

79 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

yadayada
yadayada

Level 3 Expert

75077 Answers

Michael Contreras
Michael Contreras

Level 2 Expert

166 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...