2012 Mercedes GLK 350 - A/C Cooling problem

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forumoto
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2012 Mercedes GLK 350 - A/C Cooling problem

Post by forumoto »

my ac blows hot on freeway, Cool in town what could it be.?.and Cool in park..?

Compressor has been changed yet still...

Thanks
Dougflas
Posts: 379
Joined: Mon Apr 18, 2016 6:10 pm

Re: 2012 Mercedes GLK 350 - A/C Cooling problem

Post by Dougflas »

Start looking at the metering device. If possible, tape a gauge set onto the windshield and give us the readings.
forumoto
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Re: 2012 Mercedes GLK 350 - A/C Cooling problem

Post by forumoto »

Metering device? You mean the manifold gauge or what?
Dougflas
Posts: 379
Joined: Mon Apr 18, 2016 6:10 pm

Re: 2012 Mercedes GLK 350 - A/C Cooling problem

Post by Dougflas »

forumoto wrote:Metering device? You mean the manifold gauge or what?
Negative. I am speaking of the TXV or orfice tube. There are the devices that allow refrigerant to flow into the evaporator.
forumoto
Posts: 3
Joined: Fri Sep 18, 2020 9:58 am

Re: 2012 Mercedes GLK 350 - A/C Cooling problem

Post by forumoto »

Expensive tool like which type? Are you thinking about scan tool? I have autel scan tool. Which can analyze the lice data pid of the A/C module and Engine Module, all that matter is the sensors to select for this info to display and record.
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