SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: Radiator Fan Failure

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Old Oct 29, 2018 | 12:23 PM
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KAROZZA's Avatar
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SL55 AMG/C180 K
Radiator Fan Failure

My radiator cooling fan seems to have decided it needs a vacation & only works when it feels like, which is quite rare nowadays

Being hands on & ready to tear it apart; was wondering if this is repairable rather than replaceable, hopefully saving a small fortune!?

Any suggestions, links etc....will be appreciated.

Cheers.

Last edited by KAROZZA; Oct 30, 2018 at 04:29 AM.
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Old Oct 31, 2018 | 07:38 AM
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SL55 AMG/C180 K
I'm sure I saw someone on YouTube tear down the module; can you buy the module on it's own?
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Old Nov 10, 2018 | 10:02 PM
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04 E55/04 SL55/R35 GTR
The problem is more then likely not your fan motor but the module/controller that sits on the shroud where the wires go into so replacing the whole assembly would be the best option. Been down that path last year with my e55, just ended up replacing the whole assembly. Pretty easy. I went aftermarket with no issues thus far.
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Old Nov 11, 2018 | 01:26 AM
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SL55 AMG/C180 K
Originally Posted by MUSTANGRIDAH
The problem is more then likely not your fan motor but the module/controller that sits on the shroud where the wires go into so replacing the whole assembly would be the best option. Been down that path last year with my e55, just ended up replacing the whole assembly. Pretty easy. I went aftermarket with no issues thus far.
What brand, where from & how much did it cost?


Last edited by KAROZZA; Nov 11, 2018 at 01:42 AM.
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Old Nov 12, 2018 | 06:37 AM
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So, back to the challenge....stripped the controller module to pieces & took it to my tech to have a look.

it does have 2 ICs that have shorted. All 6 on the board are the same; B80NF0

Problem now, I camnot find it locally; any suggestions where best to buy on line?

Either that, or anyone have a defective controller I can take the components from?
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Old Nov 13, 2018 | 08:42 AM
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SL 55 , Infinity FX37, Aprilia Caponord Rally
Cooling fan assembly is around $500 . Changed mine a couple of years ago .
If it goes , 55K engine overheats very quickly .
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