SL/R107: Getting the right documentation
Thread Starter
Newbie
Joined: May 2007
Posts: 4
Likes: 0
From: Wilmot, NH
1987 560SL
Getting the right documentation
Hello All!
I have purchased an '87 560SL with 58K miles. Clean, but a few problems to deal with, one of which is AC and the other is vent controls.
1. The system is low on R-12. What is the recommended replacement for this
refrigerant? I heard you can't use R-134. True?
2. Before I get into the vacuum actuator etc, I want to get the right manuals.
Who makes the best set of manuals? Are they available in CD?
Thanks and best regards.
Michael
I have purchased an '87 560SL with 58K miles. Clean, but a few problems to deal with, one of which is AC and the other is vent controls.
1. The system is low on R-12. What is the recommended replacement for this
refrigerant? I heard you can't use R-134. True?
2. Before I get into the vacuum actuator etc, I want to get the right manuals.
Who makes the best set of manuals? Are they available in CD?
Thanks and best regards.
Michael
Senior Member
Joined: Nov 2004
Posts: 282
Likes: 3
From: Bradenton, FL
'87 560SL Sold, '99 SL500 For Keeps
Mike,
Use R12 in your AC system. Other poster is correct that changing to R134 is a bad idea. You lose cooling efficiency, the compressors were designed to run R12, etc. If a local AC shop tries to talk you into converting, find another shop.
Manuals on CD at www.mbusa.com for $20 +/- ; look under the 'Classic' link. Also, register your car while you're there. Paper manuals come up every so often on ebay and are quite pricey. Avoid Chiltons or Haynes....trash.
Have fun with the car.
Bob
Use R12 in your AC system. Other poster is correct that changing to R134 is a bad idea. You lose cooling efficiency, the compressors were designed to run R12, etc. If a local AC shop tries to talk you into converting, find another shop.
Manuals on CD at www.mbusa.com for $20 +/- ; look under the 'Classic' link. Also, register your car while you're there. Paper manuals come up every so often on ebay and are quite pricey. Avoid Chiltons or Haynes....trash.
Have fun with the car.
Bob
Senior Member
Joined: Nov 2004
Posts: 282
Likes: 3
From: Bradenton, FL
'87 560SL Sold, '99 SL500 For Keeps
ZenStyle is correct. R12 goes for around $500 per 30 lb cylinder; R134 goes for around $200 per 30 lb cylinder. No doubt, R134 is cheaper. I can't recall the exact spec on the Nippondenso compressor, but the number 2.2 or 3.2 pounds comes to mind. Regardless, to top off an already existing R12 system to spec is going to be less than the cost of conversion to R134 and it will be more efficient, i.e., cooler.
Bob
Bob
