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#1
07-05-2010, 12:46 PM
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The chances of any normal human being having all the special tools to do this correctly is zero... I have the MB AC manual with the take apart procedure..
but my scanner is not set up at this time.... if you take my word on it it will save you a lot of time and effort... find a good new one and install it correctly.. meaning full flush before hand.. you know all the rest of the ' drill '... and do not hit it with any sticks...
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html 
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#2
07-05-2010, 01:19 PM
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It's the bearing on the freewheel pulley that is a little noisy, not the compressor. I got the rusty center nut off of the practice R4 from the 300DT (with a bad solenoid coil) with Freeall penetrating oil, 3/8 breaker bar, 14 mm socket and impacted it off with a rubber mallet. I am going to Autozone and see if they have a puller that will fit. Hope the bearing in there is standard off the shelf.
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85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked
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#3
04-29-2011, 07:22 PM
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Quote:
We already have one forum member who recently paid a 'reputable Benz shop' a small fortune to fix his A/C and it is a dismal mess. The dealers I worked for DID NOT have the tools and they frequently borrowed them from the local GM dealer, or actually sent the MBZ's to the GM dealer and farmed out the compressor work. You can make the band removal tool, as I have outlined. You can buy the tool to remove/install the clutch online. The snap ring pliers are cheap. Once the clutch and coil have been pulled, the front hub is retained by 4 bolts. Take it off so you do not gouge the shaft by pushing the seal out from the backside. Nothing will fly out at you. Get a GM shop manual. The 1975 Pontiac FSM has a very simple and detailed overhaul protocol, much more clear than the MBZ manual. As always, my tech support is free via PM or E-Mail. Best of luck...Robert
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 Did you just pass my 740 at 200 kmh in a 300SD?????1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013 100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership 
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#4
10-02-2016, 09:13 AM
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Quote:
Look Re-sealing R4 compressor
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85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked
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#5
10-02-2016, 09:39 AM
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Quote:
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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