Question about Mercedes-Benz ML320

1 Answer

2002 ML320 Heating/cooling system not working. No fans, no air, not even defrost. What's the problem?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.


    An expert who has answered 20 questions.

  • Contributor
  • 64 Answers

Checked fuses?

Posted on Oct 23, 2013


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 33 Answers

SOURCE: 2002 Ford Expedition Climate Control System

you have a loss of vacuum. There is a small diameter black plastic tube from the engine compartment that feeds the climate controls. Check at back of control head, or there is a plastic connector under dash were other color tubes join to operate the other actuators of the system the black tube must have vacuum when engine is running. check under hood the black tube is spliced. separate the tube and check for vacuum The tube enters the firewall near the heater hoses.

Posted on Feb 21, 2009

  • 11 Answers

SOURCE: 2002 KIA Sedona and A/C blows hot air

well you are probaly loew on freon our the comp is bad find the comp and see if you are able to move it if you can than you should find someone that can add freon

Posted on Mar 25, 2009

  • 22326 Answers

SOURCE: 1999 dodge grand caravan 3.8l engine cooling fan won't turn on

dont think so,seem to remember a reostat somewhere at the bottom of the rad right hand side ,check for earth problems as well ,sorry if vague but i seem to be forgetting things as i get old .

Posted on Aug 17, 2009

  • 546 Answers

SOURCE: 1999 Volvo S70 heater and defroster blowing "fog"

suspect leaking heater core.check coolant level.

Posted on Sep 29, 2009

  • 18 Answers

SOURCE: 1996 Chrysler LHS over heating. replaced cooling

you may find that the wiring plug on the harness to the fans has over heated ,it will come on once untill the plug gets hot loseing connection ,i have went to salvage yard and got good used plug and solder it in place an get another 30 to 60 th miles then do it again...and the thansducer switch some times will be bad ,its next to condenser on ac line ...try salvage part first ,,,,

Posted on Oct 25, 2009

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Connection between Climate CTRL and the Radiator Fan?

the cooling fan is designed to come on when the setting is in defrost or A/C mode . the a/c compressor is set up to come on in the winter to help keep the seals flexible by running and cooling fans run to help provide air across the condenser and radiator to cool engine water and makes a/c cold in summer time use . cooling fan will cycle as it reads data from related sensors. this is a normal condition with your car

Apr 17, 2015 | 2002 Honda Civic

1 Answer

Heating system blows cool air

check the thermostat antifreeze not circulating through heater core or the blend door not opening properly? is defroster getting hot?

Feb 11, 2015 | 2002 Toyota Sequoia

1 Answer

Pontiac aztek overheating

have you check to make sure the rad cooling fan is working and all the air has been purged from the cooling system, if so then the only thing left is a head gasket, cracked head, warped head. could be a block problem but this is unusual.

Sep 04, 2014 | Cars & Trucks

1 Answer

Dodge Stratus R/T fan doesn't come on while car is running and car is getting hot.


It can be issue with faulty motor or its faulty fan control relay.

Bother are to be inspected.

Test volt at fan relay and fan motor.


For more help, I suggest you to go through the troubleshooting links mentioned below:-----

Click the link below: ------

How to replace Cooling Fan on Acura Car models?


OBD Code P1490 low speed fan relay ckt open-short


Engine cooling components working?


How does Vehicles Engine cooling system works?


Hyundai Sonata cooling fan not working


Fuel pump relay and cooling fan relay troubleshooting on 1997 ford thunderbird?


Fan belt routing diagram for 2004 Volkswagen Jetta?


Timing belt, drive belt, serpentine belt, accessory belt, fan belt, engine belt routing diagrams for all types of car models?


A/C, heater, defroster fan, not working?


Blower fan not running on Isuzu trooper?


How to replace blower motor fan assembly on 2000 GMC Yukon?


Heater AC or defroster fan not working on KIA?


These will help.


Nov 27, 2012 | Cars & Trucks

1 Answer

Fan noise in dashboard of 2002 ML 320 Mercedes

something may have fallen into it from the defroster vents - it will have to be disassembled.
fan may need to be replaced if damaged.

Mar 25, 2011 | 2007 Mercedes-Benz ML320 CDI

1 Answer

I changed the thermostat and the sensor and put more fluid in it took it to the store about 20 min away and it started over heating again

Find the bleed screws on the engine and bleed the coolant system of air.once the air is gone from the cooling system the engine should cool fine,also check to make sure the cooling fans are coming on when they are supposed to.

Jan 04, 2011 | 2002 Buick Rendezvous

1 Answer

Heater not heating

If fan works, most likely low antifreeze in radiator. Also could be air in cooling system, so fill, try, let cool, fill more, try again.

Dec 28, 2010 | 2002 Chevrolet S-10

2 Answers

Truck is over heating. changed thermostat. still

Hello, you may have a blockage some where in the system or possible air in the system. Double check your coolant levels, your cooling fans make sure they are coming on. Hope this is helpful.

Apr 05, 2010 | 2002 GMC Envoy

2 Answers

2002 pt cruiser overheating was told i need a new raditor and thermostat for 1 grand sounds fishy

Flush rad & change coolant & thermostat. Check operation of rad fan, & make sure it is coming on when engine reaches normal operating temperature. Be sure to bleed air out good when refilling rad/cooling system. Start engine & turn heater on when refilling & let rad fan come on & off at least 2 or 3 times before putting cap back on rad, and refill rad as needed as you do this. then fill return bottle to proper level & see what happens.

Jun 27, 2009 | 2002 Chrysler PT Cruiser

1 Answer

A/c pump will go on /off by it self when a/c switch is on fans work fine even with the a/c turning on /off no over heating problem on this 2002 pt crusier

is a/c cooling properly?if it is..compressor cycles on and off,this is normal..if its not cooling properly,and is cycling a lot,system may be low on refrigerant

May 17, 2009 | 2002 Chrysler PT Cruiser

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

59 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

79186 Answers

Joseph Prosser

Level 3 Expert

772 Answers

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

Answer questions

Manuals & User Guides