If so, I need some information. In section 5, there's supposedly a procedure on adjusting the fan clutch to get it to lock up earlier. There are a few mentions of this procedure from ~2005 on other Mercedes forums but none actually outline it like the book does and none of the members are still active. Something about drilling a hole and adding a screw in the bimetallic strip. I could buy the book but it's rather expensive and I only need it for this one section.

Any help would be greatly appreciated. Posting this to multiple sections for visibility.

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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.

I’ve got it. P.m. me your cell number and I will send you some pics of the relevant pages.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles
06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

Solved!

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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.

Link to other thread that contains the info: Does anyone have a copy of the W124 Bible?

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.