http://www.id-usa.com/how_to_faqs_retrofitting.asp

Do yourself a favor and read the FAQ site from a reputable company in A/C if you want to use R134a. If you go to Walmart or most shops, all you see is products from this company, Interdynamics Corp. If anyone or any physicists who disagrees with the FAQ on the physics of the refrigerant, please contact the company and correct them.

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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.