https://www.autozone.com/a-c-charging-and-refrigerant-freon/r134a-refrigerant/quest-r-134a-1st-charge-refrigerant-with-ice32-not-for-hybrid-vehicles-with-electrical-driven-compressors/940780_0_0/

http://acsource.net/acforum/viewtopic.php?f=1&t=10188

http://www.certifiedacpro.com/datasheets/msds/ICE-2_MSDS.pdf

http://www.autoacforum.com/messageview.cfm?catid=2&threadid=11847

__________________
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