E-Class (W211) 2003-2009

2009 E350 radiator fan not turning on. Overheating

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Old 04-15-2014, 09:29 PM
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2010 GL450
2009 E350 radiator fan not turning on. Overheating

Hey guys. Recently I noticed higher temps and realized the rad fan isn't turning on. I don't have the manual for my car and don't know where the fuse for the fan is located, so I haven't checked if it's a fuse yet. Any help would be great. Thanks
Old 04-16-2014, 10:38 AM
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Anyone?
Old 04-16-2014, 12:59 PM
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Check the thermostat. It might need replacing.
Old 04-16-2014, 01:14 PM
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How would I check the thermostat? I'm pretty sure it opens because the large radiator hose gets under pressure when the car heats up, but the fan never kicks on.
Old 04-21-2014, 11:00 PM
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Same thing happened to me and I replaced the fan assembly. Even when it is hot the fan isn't working.
Old 05-09-2014, 10:34 PM
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It was the cooling fan assembly. Was able to source it locally for $480 out the door. Sucks they don't make an aftermarket fan assembly for the w211. Installed it in under 15 minutes. Car no longer runs hot. Thanks everyone.

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