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#46
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The Reinz evaporator has been working flawlessly for over a year now.
Good quality, and well-priced. :-) neil |
#47
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Thanks a lot to BoxfordBenz for such nice write-up.
__________________
1996 E320 since 1/16/08, 171K miles as of Feb 2011 --------------------------------------------------------- 1989 300CE - R.I.P. Dec 29 2007 Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE |
#48
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Awesome Post
Thank you for the awesome documentation David! I'm getting some a/c dye leaking from under the car (a/c drain pipe above the tranny) so I'm thinking my evaporator is leaking. My a/c system can only hold a full charge of freon for 3 days max before it totally empties out. Your write-up will be a big help for me. Thanks again!
Frank 93 W124 M104 3.2 & Still lovin' it!
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FrankT. |
#49
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Quote:
http://w124-zone.com/?p=93 I'm at 3.5 months since my overhaul and it is working awesome.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
#50
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A Thank-you and a question
To the man who took the time to compile this post with so much detailed information, Thank-you! I recently passed the step of denial and have now accepted that my evaporator is bad and will have to be replaced. Without your post I wouldn't have attempted it. I am about half way through the disassembly, have ordered my evaporator with built on expansion port and it should be in any day.
One question, or maybe a few...... I checked with the supplier and the new evaporator / expansion port does not include new seals, should I get these from Mercedes or what did you do? Second, I am planning on using Freeze 12 on my system. Wondering what the proper high and low pressures should be on the system once I get it all back together? Third and last, I am replacing the drier, low pressure switch, ac fan switch. I have one of the cheap vacuums that connect to a air line and it says to let it run for 45 min - 1 hour. Is this sufficient in preparing the system? Thanks again to the original poster, and to anyone else that can share their wisdom on these questions! |
#51
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^ Why use Freeze 12 when R12 is available for decent prices these days? You will be evacuating and flushing the system anyway....
And no, you need a proper evacuation machine. That won't cut it.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
#52
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Reply
Okay, so I've taken the online 609 test so I can purchase R-12. I found some specs online that show the capacity of a 1991 w124 to be 1000 grams, that converts to 38 oz of freon I'm guessing?
I will get it properly evacuated. So the seals for the expansion port, get those from Mercedes? Do they need to be special for R-12? Thanks for the reply. |
#53
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The O-ring kit at Fastlane should work:
http://catalog.peachparts.com/ShopByVehicle.epc?q=1990-Mercedes--Benz-300e--Base-Climate--Control&yearid=1990%40%401990&makeid=63%40%40MERCEDES+BENZ%40%40X&modelid=6194%3AEB|613%3AED|10000013%3ASM|20%3AMBC|1507%40%40300E+Base&catid=242213%40%40Climate+Control&subcatid=330700@@A%2FC+O-Ring+Kit&mode=PD Get the cans off Craigslist for about $15-20 each...so a couple cans should do the trick. You'll extend the life of the compressor and have cooler vent temps. What's more to say!? You need to replace the drier since the system was exposed to the air, PLUS you are changing refridgerant. Replace ALL seals including the one behind A/C manifold. All seals are easy to do....Since you gotta flush the system regardless, all lines are off anyway! When the system has been evac'd, leave it with vacuum for a few hours and make sure its still holding when you come back. That'll check for leaks.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
#54
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Thanks..... Again!
So I hate to more questions, just want to make sure I am doing this right. I ordered the o-ring kit, thanks so much.
My plan is: All my freon is leaked out already so before I install the new dryer and evaporator, I'm going to disconnect all lines, flush it out and drain the compressor's oil. (I'm assuming the best way is to just disconnect the lines and let it come out??) Didn't know if there was a drain or not for it. Then I'm going to replace all seals, vacuum for a hour or so to get all moisture out and check for leaks. Lastly, I'm going to fill it back with Frigi Quiet (8 oz) I figured maybe 4 in the compressor, 2 in the dryer and 2 in the evaporator? Does this sound like a good game plan? One more question- I couldn't find if the o-ring kit I purchased includes the seals behind the compressor to the suction and output line? I found these two parts and am wondering if that is what I need to purchase but not sure: W0133-1642218 Manifold Gasket set? W0133-1628974 Manifold Seal Kit? Thank-you so much for your help! |
#55
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It should include it, yes. Follow the article I posted earlier, it includes links to the documentation for oil refill. "flush (not literally)" the compressor using the new oil and turn by hand. Do it a number of times then refill using the specific amount.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
#56
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Finally putting it all back together
So, I've got all the pods replaced and ready to start putting things back together but have found 2 vacuum lines that I for the life of me I don't remember unhooking and can't figure out where they go. I've included two pictures, the one on the passenger's side comes from the battery box area and goes through a air filter before coming into the firewall where you see it.
The other is on the drivers side and comes out with the cylinder lock vacuum lines. Any idea? I've tried to find a vacuum diagram and not having much luck. Thank-you! |
#57
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Second photo looks like the vacuum cable for the cluster. No idea about the first though sorry
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k |
#58
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Vacuum Lines
Finally found a schematic. They are both vents, supposed to be open.
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#59
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Bump
for "connerm".
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#60
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When people say they built the W124 around the evaporator, they're not kidding!
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