A/C Fan Problem
Thread Starter
Newbie
Joined: Jun 2014
Posts: 11
Likes: 0
2011 GLK 350
A/C Fan Problem
Hi,
I just purchased a 2011 GLK 350 fully loaded.Already have a minor electrical glitch.After shutting off the ignition there is a fan running,which does not shut off even after several hour.This supposedly is the a/c fan which dissipates the moisture in the unit.The only way to stop this is to hit the off button on the auto a/c.It also stops when the driver door is opened or the rear door is opened,in both of these cases it will start again after closing the doors.So far the dealer has done an upgrade to the software to no avail.Now they recommend just to disable the auto mode,because the unit also has a drain plug where the moisture can escape.
What are your thoughts on this fix??I would prefer to have the faulty unit replaced,as the Car is still under a full warranty.
Cheers Mike
I just purchased a 2011 GLK 350 fully loaded.Already have a minor electrical glitch.After shutting off the ignition there is a fan running,which does not shut off even after several hour.This supposedly is the a/c fan which dissipates the moisture in the unit.The only way to stop this is to hit the off button on the auto a/c.It also stops when the driver door is opened or the rear door is opened,in both of these cases it will start again after closing the doors.So far the dealer has done an upgrade to the software to no avail.Now they recommend just to disable the auto mode,because the unit also has a drain plug where the moisture can escape.
What are your thoughts on this fix??I would prefer to have the faulty unit replaced,as the Car is still under a full warranty.
Cheers Mike
Super Member
Joined: Aug 2011
Posts: 861
Likes: 38
From: Philly area
350 GLK, C280
First GET IT FIXED! It is on warranty and why bother with this when somewhere in the future it may drain your battery.
Second, are you sure the condensate drain pipes are not plugged? If they are, sooner or latter you will have water on the floor. A plugged pipe may keep the system from drying out and the humidity sensor will always see damp.
Third, where are you? This vehicle never saw high water? Some humidity sensors are sensitive to having been actually wet. Don't subject the one in your home dehumidifier to washing or it will change its calibration. If reprogramming didn't solve the problem, and most of the rest of us don't have this problem, then either the sensor is faulty, the relay or switching transistor is bad or the system is actually wet. If the transistor is bad, it may require the exchange of the ECM.
Last, I don't want that dealer to service my car when he thinks you should live with a problem. You spent a lot of money on this vehicle and it should function correctly.
Second, are you sure the condensate drain pipes are not plugged? If they are, sooner or latter you will have water on the floor. A plugged pipe may keep the system from drying out and the humidity sensor will always see damp.
Third, where are you? This vehicle never saw high water? Some humidity sensors are sensitive to having been actually wet. Don't subject the one in your home dehumidifier to washing or it will change its calibration. If reprogramming didn't solve the problem, and most of the rest of us don't have this problem, then either the sensor is faulty, the relay or switching transistor is bad or the system is actually wet. If the transistor is bad, it may require the exchange of the ECM.
Last, I don't want that dealer to service my car when he thinks you should live with a problem. You spent a lot of money on this vehicle and it should function correctly.
Thread Starter
Newbie
Joined: Jun 2014
Posts: 11
Likes: 0
2011 GLK 350
First GET IT FIXED! It is on warranty and why bother with this when somewhere in the future it may drain your battery.
Second, are you sure the condensate drain pipes are not plugged? If they are, sooner or latter you will have water on the floor. A plugged pipe may keep the system from drying out and the humidity sensor will always see damp.
Third, where are you? This vehicle never saw high water? Some humidity sensors are sensitive to having been actually wet. Don't subject the one in your home dehumidifier to washing or it will change its calibration. If reprogramming didn't solve the problem, and most of the rest of us don't have this problem, then either the sensor is faulty, the relay or switching transistor is bad or the system is actually wet. If the transistor is bad, it may require the exchange of the ECM.
Last, I don't want that dealer to service my car when he thinks you should live with a problem. You spent a lot of money on this vehicle and it should function correctly.
Second, are you sure the condensate drain pipes are not plugged? If they are, sooner or latter you will have water on the floor. A plugged pipe may keep the system from drying out and the humidity sensor will always see damp.
Third, where are you? This vehicle never saw high water? Some humidity sensors are sensitive to having been actually wet. Don't subject the one in your home dehumidifier to washing or it will change its calibration. If reprogramming didn't solve the problem, and most of the rest of us don't have this problem, then either the sensor is faulty, the relay or switching transistor is bad or the system is actually wet. If the transistor is bad, it may require the exchange of the ECM.
Last, I don't want that dealer to service my car when he thinks you should live with a problem. You spent a lot of money on this vehicle and it should function correctly.
Cheers Mike
