Question about Mercedes-Benz ML320
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Posted on Jan 02, 2017
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
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
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
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
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FAN NOT WORKING
can be issue with faulty motor or its faulty fan control relay.
are to be inspected.
volt at fan relay and fan motor.
more help, I suggest you to go through the troubleshooting links
the link below: ------
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