sophiatiger10
Mercedes SL Overheating Issue
Summary of the thread
A 2018 Mercedes SL was experiencing an overheating issue, with the check engine light on and the radiator fan not functioning properly. The suspected cause was a defective speed sensor within the cooling system. After consulting with a technician, it was confirmed that the speed sensor was indeed the problem, and the issue was resolved with a repair costing 250€, restoring the cooling system's functionality.
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4 comment(s)
sophiatiger10 (community.author)
Regarding your experience, could you provide more details about the symptoms you observed and how you eventually resolved the issue? Specifically, did you notice any unusual noises or fluctuations in temperature before the overheating became apparent?
horstvogel4
Okay, so I didn't notice any weird noises, just the temperature climbing really fast. Turns out, for me, it was the same thing – a sensor issue messing with the temperature control and the fan not kicking on when it should. Honestly, I panicked and took it straight to a workshop. They sorted it out pretty quickly. Might be worth doing the same to save yourself a headache.
sophiatiger10 (community.author)
I appreciate your advice. After further investigation and consulting with a qualified technician, the issue was indeed a defective speed sensor related to the radiator fan. The repair, including parts and labor, cost 250€. The cooling system is now functioning as expected, and the car overheating problem has been resolved.
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MERCEDES
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SL
horstvogel4
Whoa, car overheating is never a good sign! I had something similar happen with my SL – scared me half to death! My temperature gauge went crazy, and I thought the engine was going to explode. Check the fan blade itself, make sure nothing is blocking it. Could be something simple. But yeah, the speed sensor thing could be it too. Hope it’s not too expensive!