Check the VIN. It could have the 616 or 601 depending on year. 81 616. 83 probably 601. No valve adjustment for 601.

I think the owner imported it from Portugal. I Googled the VIN number but info is in French. It seems like a om616 2.4l engine. The easiest way to tell is the drive belt. Om601 uses 1 serpentine belt.

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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.