AC leak - Mercedes-Benz Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 06-01-2018, 04:38 AM Thread Starter
BenzWorld Elite
 
RLT61's Avatar
 
Date registered: Jan 2016
Vehicle: 86 560SL
Location: Greater Hotlanta
Posts: 1,243
Mentioned: 12 Post(s)
Quoted: 332 Post(s)
Garage
(Thread Starter)
AC leak

What is the best way to find a leak in the AC system.
Had the AC system checked out early last summer and all was good. It held vacuum for over an hour before the shop proceeded to charge the system (still had an R12 machine). Now itís about 11 month later and the AC still works but does not get quite as cold. Stuck a thermometer in the center vent yesterday and it indicated about 50 deg. F.
I am a little concerned because the leak is so small and it is a 32 year old system. If I would have a shop add dye to the system would that even show up?
RLT61 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 06-01-2018, 06:38 AM
Premium Member
 
Jyuma's Avatar
 
Date registered: May 2017
Vehicle: 1983 380 SL
Location: Long Island, New York USA
Posts: 2,116
Mentioned: 15 Post(s)
Quoted: 744 Post(s)
Premium Member
Garage
Quote:
Originally Posted by RLT61 View Post
What is the best way to find a leak in the AC system.
Had the AC system checked out early last summer and all was good. It held vacuum for over an hour before the shop proceeded to charge the system (still had an R12 machine). Now itís about 11 month later and the AC still works but does not get quite as cold. Stuck a thermometer in the center vent yesterday and it indicated about 50 deg. F.
I am a little concerned because the leak is so small and it is a 32 year old system. If I would have a shop add dye to the system would that even show up?
If the leak (?) is that small, what will the dye show. The dye needs to leak out in order to be detectable and if it's that slow of a leak then it is probably not a single location leaking but rather a general failure (minor) in multiple places. Did you check the charge level? 50F doesn't appear all that bad to me. If you gotta throw in a small amount of R12 every year or two, what's the harm?

Nobody gets out of this life alive.
Jyuma is offline  
post #3 of 3 (permalink) Old 06-02-2018, 11:38 AM Thread Starter
BenzWorld Elite
 
RLT61's Avatar
 
Date registered: Jan 2016
Vehicle: 86 560SL
Location: Greater Hotlanta
Posts: 1,243
Mentioned: 12 Post(s)
Quoted: 332 Post(s)
Garage
(Thread Starter)
Quote:
Originally Posted by Jyuma View Post
If the leak (?) is that small, what will the dye show. The dye needs to leak out in order to be detectable and if it's that slow of a leak then it is probably not a single location leaking but rather a general failure (minor) in multiple places. Did you check the charge level? 50F doesn't appear all that bad to me. If you gotta throw in a small amount of R12 every year or two, what's the harm?
Iíd have to agree with it being a general failure due to old age. Iíll keep a watch on it and see if it stays around 50 deg. F or if the temperature will increase over the next few weeks.
RLT61 is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > Mercedes-Benz Roadster Forums > R/C107 SL/SLC Class

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 

Title goes here

close
video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome