When i grab the fanblades ( at 3 & 9 o clock position ) and push/pull them in & out, I can get about 1/4" wiggle.
Something to be concerned about or check for?

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2007 C 230 Sport.

I'm not familiar with the M111 but if the clutch fan is attached to the water pump, check that the play is in the fan, clutch or water pump. Tactile play in the water pump shaft is a big red flag.

Sixto
93 300SD

There should be no play in the fan clutch.

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I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k

None. Check the source. It can be both a fan clutch and a water pump or either. When you look down wiggle ever so slowly from one end of the play (3) o'clock and back (9) o'clock. If the play is limited to the shaft extension after the 4 mounting bolts, it is just the clutch. If you can go past seeing it move at the clutch shaft and then even more to notice a wobble at the water pump shaft then it is both. I have seen very slight amounts of water pump play last 50k miles but you have to stay on top of it. If you get under the car and look up at the seal drain hole and see ANY signs of leaking, you need to replace the water pump if it exhibits any play at all. Contrastingly, If the is play in the clutch, it should be replaced right away. They have no set trend and can fail catastophically at any time.

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64 European Coupe Brilliant Silver with Red interior 4 Speed Sunroof
87 TDT 286k
87 SDL 195k
83 SD 202k
83 SD 201k
83 D 286k
02 R1150RT 32K
00 122HP FLSTF
07 KTM 250SX

"Danger takes many forms"

Problem pinpointed. Fan clutch defective.
New one on order,.....from Phil, naturally.

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2007 C 230 Sport.