I was able to work on the mule last night and get it all back together.

The 606 fan clutch indeed fits the 603 metal fan. The only difference I saw was the 606 fan clutch has slightly thinner profile, so the fan sits about 1/8” farther away from radiator. No big deal, it still fits in the shroud OK and clears the serp belt and accessories just fine.

FYI, the 9 blade metal fan weighed 840 grams (in case anyone wants to compare to plastic fan weight). The 606 fan clutch weighed 855 grams, and the 603 clutch weighed 940 grams.

I also bought a can of industrial condenser cleaner from Grainger and did what Brian previously instructed. Man that thing was dirty, you couldn’t really see thru it when held up to light. After degreasing it for 2 hrs and spraying out with garden hose for 15 min, it was a lot cleaner, but still has debris in between the coils.

I also installed the new res and coolant level sensor

And tried to install the new lower rad hose but World Pac sent a hose that didn’t fit (just like the upper hose they sent me a year back). Took another hr to dismantle everything to reinstall the old rubber lower rad hose. Not happy bout that… guess I will have to go to dealer and buy 1.

I will drive it for next few weeks and let you know how it does. Its pretty hot today so I should be able to get on it going home from work, see if it hits 120C again…

Oh 1 question – wheres the hose on top of res (at the cap) go to? Mine broke (actually crumbled) when I tried to remove it off old res. I will have to replace, but it looks like it goes toward passenger cabin somewhere? Is is bad to run engine with this disconnected? I had to cut off the end and its sorta/kinda reconnected but too short so I need another 1.

__________________
Paul
Benz-less
I need an SDL !