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S-Class (W222) 2014-2020

Coolant Leak 2014 S550

Old Nov 24, 2025 | 05:08 PM
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S1nomb's Avatar
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Coolant Leak 2014 S550

Can anyone guess where the leak could come from?





I have attached images to show the location.
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Old Nov 24, 2025 | 09:44 PM
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2019 S560, 2015 Honda Civic Hybrid
Turbo coolant hoses are notorious on these engines ...
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Old Nov 24, 2025 | 09:56 PM
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From: Fleriduh
W212 E63S Wagon - GSL580 - E63 - E350 - C300
Do yourself a favor - get the new OEM hoses. Cut off the plastic hose bits and install sylicone hoses. Wider diameter, more heat proof. Every single plastic bit that goes into the engine block...they are going to break. They are PITA to get out (I used a soldering iron to melt them) and all need to be changed...just when you think you got them all, two more show up. Plus, more on the back side of the engine into the firewall.





Last edited by OldManAndHisCar; Nov 24, 2025 at 09:59 PM.
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Old Nov 24, 2025 | 11:18 PM
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From: Fleriduh
W212 E63S Wagon - GSL580 - E63 - E350 - C300
Okay, some of the very easy things that I would replace right off of the bat and that have been replaced on this particular engine






this 550 engine is almost a mirror of the other engine


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