Had my friend do the mod on my parent's Sprinter van, he's got to adjust it some but says it seems to work well to get the fan to cut in much earlier and keep temps down and improve AC. I'll get back to you with long-term findings.

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.