AC not working!!! Any ideas?
Thread Starter
Member
Joined: Feb 2014
Posts: 94
Likes: 26
From: Houston, TX
2018 Lexus LC500, 2020 GLE350 4Matic, 2005 Jeep Wrangler
AC not working!!! Any ideas?
2011 E350 with 80K miles. No issues with the vehicle to this point. I turned on the air conditioner this morning and noticed after a short time that the air was not cool. The little red LED above the A/C button wasn't lit so I pressed it and it blinks, but doesn't stay on. Fuse maybe? Or something more serious?
Your help (as always) is greatly appreciated.
Thank you,
Chris
Your help (as always) is greatly appreciated.
Thank you,
Chris
MBWorld Fanatic!
Joined: Jun 2015
Posts: 1,523
Likes: 85
From: New Jersey
2010 E550 P2 w/AMG Sport Package + Pano, 2015 Nissan Pathfinder
2011 E350 with 80K miles. No issues with the vehicle to this point. I turned on the air conditioner this morning and noticed after a short time that the air was not cool. The little red LED above the A/C button wasn't lit so I pressed it and it blinks, but doesn't stay on. Fuse maybe? Or something more serious?
Your help (as always) is greatly appreciated.
Thank you,
Chris
Your help (as always) is greatly appreciated.
Thank you,
Chris
Thread Starter
Member
Joined: Feb 2014
Posts: 94
Likes: 26
From: Houston, TX
2018 Lexus LC500, 2020 GLE350 4Matic, 2005 Jeep Wrangler
I used the search function, but couldn't find anything about that. I also heard that disconnecting the battery sometimes "resets" systems like the A/C. Any thoughts about that?
MBWorld Fanatic!
Joined: Jun 2015
Posts: 1,523
Likes: 85
From: New Jersey
2010 E550 P2 w/AMG Sport Package + Pano, 2015 Nissan Pathfinder
I've never heard if resetting the AC takes place after disconnecting the battery. Every search I do here or on Google refer to a Compressor issue or a faulty sensor. I see one post with a simple test to try and gauge whats wrong. Not sure if it'll help any but it's all I could find on this forum quickly.
https://mbworld.org/forums/c-class-w...ing-times.html
https://mbworld.org/forums/c-class-w...ing-times.html
MBWorld Fanatic!
Joined: Jan 2009
Posts: 3,829
Likes: 592
From: NY & FL
MB’s of all kinds.
You might be low on R134a. Usually if the light is blinking like on the old E 210's and E 211'S it means you are low on the gas and it is a safety feature to save the Compressor. My guess is you have a nasty leak. You need to run the DIY into the system. Then patch the leak and refill.
Newbie
Joined: Apr 2022
Posts: 1
Likes: 7
Mercedes benz e 350 4 matic
A/C not working
2011 E350 with 80K miles. No issues with the vehicle to this point. I turned on the air conditioner this morning and noticed after a short time that the air was not cool. The little red LED above the A/C button wasn't lit so I pressed it and it blinks, but doesn't stay on. Fuse maybe? Or something more serious?
Your help (as always) is greatly appreciated.
Thank you,
Chris
Your help (as always) is greatly appreciated.
Thank you,
Chris
i have e350 2012. The a/c wouldn’t turn on. The indicator light blinks 3 times and it stays off. At a car shop told me it is the compressor and I didn’t believe them.
So, checked with ac machine, the system was still full, so no leaks. I plugged cheap obd scanner and I read all the temp sensors. The pressure sensor was reading 0 psi. I ordered aftermarket pressure sensor (located front left under radiator) installed, vacuumed, charged and the ac now blowing below 45f.
MBWorld Fanatic!
Joined: Oct 2002
Posts: 4,975
Likes: 1,343
From: Cincinnati
2010 E350 4Matic
I just wanna share my experience so hopefully I can help someone else.
i have e350 2012. The a/c wouldn’t turn on. The indicator light blinks 3 times and it stays off. At a car shop told me it is the compressor and I didn’t believe them.
So, checked with ac machine, the system was still full, so no leaks. I plugged cheap obd scanner and I read all the temp sensors. The pressure sensor was reading 0 psi. I ordered aftermarket pressure sensor (located front left under radiator) installed, vacuumed, charged and the ac now blowing below 45f.
i have e350 2012. The a/c wouldn’t turn on. The indicator light blinks 3 times and it stays off. At a car shop told me it is the compressor and I didn’t believe them.
So, checked with ac machine, the system was still full, so no leaks. I plugged cheap obd scanner and I read all the temp sensors. The pressure sensor was reading 0 psi. I ordered aftermarket pressure sensor (located front left under radiator) installed, vacuumed, charged and the ac now blowing below 45f.
