E-Class (W212) 2010 - 2016: E 350, E 550
Sponsored by:
Sponsored by: CARiD

AC freon recharge

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Apr 11, 2020 | 12:02 PM
  #1  
TCB2010's Avatar
Thread Starter
Newbie
 
Joined: Dec 2019
Posts: 8
Likes: 0
2014 Mercedes Benz E350
AC freon recharge

Hello and thanks for any information you can provide.
I have a 2014 e350, roughly 45k miles. My issue is all of a sudden ac isn’t getting cold. So my question is, is this common to have a 6 year old car need a ac recharge? I’ve never ever had to do this to any other car. If you feel like it’s just a recharge, can I buy a bottle of 134a recharge kit from auto zone, Napa or somewhere like that would you suggest, because the nearest MB service is 3 hours away and with our covid19 going on the dealership is closed anyways..
Reply
Old Apr 11, 2020 | 12:55 PM
  #2  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
I would suspect something else is wrong if the AC isn't working in a 2014. That's pretty early for this and it is a closed system so unless there is a leak there should be no need for recharge.
Reply
Old Apr 11, 2020 | 02:38 PM
  #3  
Arrie's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Oct 2010
Posts: 5,141
Likes: 1,293
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
Originally Posted by TCB2010
Hello and thanks for any information you can provide.
I have a 2014 e350, roughly 45k miles. My issue is all of a sudden ac isn’t getting cold. So my question is, is this common to have a 6 year old car need a ac recharge? I’ve never ever had to do this to any other car. If you feel like it’s just a recharge, can I buy a bottle of 134a recharge kit from auto zone, Napa or somewhere like that would you suggest, because the nearest MB service is 3 hours away and with our covid19 going on the dealership is closed anyways..
Does your fan in the front run fast when A/C is not cooling?

your car in general is too young to have leak or other problems like Lilbenz says but sometimes things go wrong even with brand new equipment.

I had a problem like yours a year or two ago and my problem was the system had too much charge in it. I first thought it was low and bought a134 from car part store and charged it based on the ambient instructions that came with it but things got worse and my fan in front of car was just screaming full speed.

I then started letting the “Freon” out and the system started working again.

I even repeated this again as it would not make sense that charge needs to be lower than in general and the result was the same.
Reply
Old Apr 11, 2020 | 04:37 PM
  #4  
TCB2010's Avatar
Thread Starter
Newbie
 
Joined: Dec 2019
Posts: 8
Likes: 0
2014 Mercedes Benz E350
If the “eco” is on will that make a difference in temperature? And if I shut the eco off will it get colder?
Reply
Old Apr 11, 2020 | 04:39 PM
  #5  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
Originally Posted by TCB2010
If the “eco” is on will that make a difference in temperature? And if I shut the eco off will it get colder?
Eco is engine start/stop on your car. Eco being on or off will only make a difference in discharge air temp when the engine shuts off at a stop (because the compressor stops running). Otherwise, no difference.
Reply
Old Apr 11, 2020 | 05:51 PM
  #6  
ygmn's Avatar
MBWorld Fanatic!
5 Year Member
Photogenic
Liked
Loved
 
Joined: Sep 2018
Posts: 3,243
Likes: 932
From: New Orleans Area
2015 E400 Sedan
Could be anything and needs proper trouble shooting.
Does AC clutch come on?
any AC codes stored?
Hook up hi/lo pressure gages (if you know what you are doing here) check.
etc etc

Could be one of many things.
Reply
Old Apr 12, 2020 | 12:18 PM
  #7  
kajtek1's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jan 2009
Posts: 9,224
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
https://www.mercedesmedic.com/ac-air...le-codes-list/
This is the best troubleshooting procedure. Written for older models, where you could access sensors on car display, while W212 need a scanner.
Follow the procedure in comments and if you can't interpret the numbers, post them here.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 05:39 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE