There is nothing more expensive than an old Mbz if you can't do you own repair or diagnosis. OTOH, there is nothing cheaper than owning a Mbz if you are handy. I love all my old diesel. Cheap to insure, easy to work on, load of helping hands/info from this forum, cheap spares, availability of cars in jy. It has been good experience for me since I changed my car brand to Mbz.

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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.