As described in this post http://www.peachparts.com/shopforum/showthread.php?p=1989547 I used a Lisle brand compressor which uses the words 'super safe' in the product description. The tool made for Mercedes springs would have been easier to use but this one will work on just about any coil spring and like Alton Brown I tend to stay away from unitaskers in my shop if I can.

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'82 300D - Light Ivory, 2nd Owner (Back in the wind April 2013!)

'95 E300D - White, grey interior. (Suffering from stuck/broken glow plugs)

Deuteronomy 22:4-
"Thou shalt not see thy brother's ass or his ox fall down by the way, and hide thyself from them: thou shalt surely help him to lift them up again."