E-Class (W211) 2003-2009

Location of low pressure side Schrader valve

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jun 2, 2013 | 02:34 PM
  #1  
jamesriordan's Avatar
Thread Starter
Newbie
 
Joined: Jun 2013
Posts: 4
Likes: 0
e320 bluetec
Question Location of low pressure side Schrader valve

I am unsure of location of recharge valve (low pressure side) for my 2007 E320 Bluetec sedan; there is one clearly visible valve close to driver's side hood hinge, but not if this is correct. Any help would be greatly appreciated. Thank you
Reply
Old Jun 3, 2013 | 01:05 AM
  #2  
AMGAffalterbach's Avatar
MBWorld Fanatic!
 
Joined: Aug 2011
Posts: 3,184
Likes: 16
From: Highlands Ranch, Colorado
2014 BMW M235i
This is for an A/C refrigerant recharge correct?
Reply
Old Jun 3, 2013 | 06:39 AM
  #3  
jamesriordan's Avatar
Thread Starter
Newbie
 
Joined: Jun 2013
Posts: 4
Likes: 0
e320 bluetec
Yes, thank you
Reply
Old Jun 3, 2013 | 08:38 AM
  #4  
jamesriordan's Avatar
Thread Starter
Newbie
 
Joined: Jun 2013
Posts: 4
Likes: 0
e320 bluetec
This was the designation I was provided with for the 2007 E320 Bluetec; if it is incorrect and the designation is W210, then so it is. If the latter, where is the low pressure valve located ? Thank you
Reply
Old Jun 3, 2013 | 08:40 AM
  #5  
platinumblue's Avatar
Junior Member
 
Joined: Mar 2006
Posts: 47
Likes: 0
From: California, Maryland
E320
Normally for any recharge of 134 refrigerant the low side is easy identified by the size of the quick release fitting. This should be if using gauges the blue/low side pressure hose and will be the smaller of the two pressure fittings.

Low side - generally on line cap has an (L) to indicate pressure fitting. Also the low side pressure fitting will only accept a low side quick release fitting.
Reply
Old Jun 3, 2013 | 08:47 AM
  #6  
jamesriordan's Avatar
Thread Starter
Newbie
 
Joined: Jun 2013
Posts: 4
Likes: 0
e320 bluetec
Thank you; the one visible cap is not marked (and is attached to the small diameter refrigerant line). There appears to be considerable variability in the possible location of the other valve.
Reply
Old Jun 3, 2013 | 09:07 AM
  #7  
platinumblue's Avatar
Junior Member
 
Joined: Mar 2006
Posts: 47
Likes: 0
From: California, Maryland
E320
A quick call to a MB dealer could provide/verify pressure line location. Just a thought.
Reply
Old Jun 4, 2013 | 01:20 AM
  #8  
AMGAffalterbach's Avatar
MBWorld Fanatic!
 
Joined: Aug 2011
Posts: 3,184
Likes: 16
From: Highlands Ranch, Colorado
2014 BMW M235i
^+1 to the information above. However, if you are using one of the store-bought canisters with the single gauge be warned you will very easily damage the A/C system as you need a dual-gauge setup to assess both high and low system pressure as well as regulate the exact amount of refrigerant you put in. The correct amount is crucial in modern cars so if you don't have the equipment to meter that, then have a professional do it.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-1

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

 Verdad Gallardo
story-2

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-3

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-4

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-5

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-6

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-7

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-8

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-9

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo

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 04:41 PM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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