S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

M278 radiator fan

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Old 10-24-2022, 10:42 AM
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2017 X166 GLS550 & (R230) SL550 2007 & 2012 S550
Question M278 radiator fan

I have looked everywhere for the procedure to replace the "suction fan" assembly and have found NOTHING !
If anyone has the WIS for this 2012 W221 that's the twin turbo and the plumbing is different than the 2007-2011
Old 10-28-2022, 01:20 AM
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2017 X166 GLS550 & (R230) SL550 2007 & 2012 S550
Bump !

Originally Posted by poptopclk
I have looked everywhere for the procedure to replace the "suction fan" assembly and have found NOTHING !
If anyone has the WIS for this 2012 W221 that's the twin turbo and the plumbing is different than the 2007-2011
???
Old 11-01-2022, 02:47 PM
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So on one has proper instructions for a W221 with this twin turbo engine??
Old 11-08-2022, 01:01 PM
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'71 Pinto
See attachments.
Attached Files
File Type: pdf
157,276,278 fan unit.pdf (504.1 KB, 20 views)
File Type: pdf
front end reinforcement.pdf (3.83 MB, 11 views)
File Type: pdf
front bumper.pdf (436.6 KB, 16 views)
File Type: pdf
lamp unit.pdf (552.4 KB, 23 views)
File Type: pdf
hood catch.pdf (477.2 KB, 32 views)
File Type: pdf
adjust hood.pdf (649.6 KB, 23 views)
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