View Poll Results: Humming sound while coasting at 48 to 52 mph
Is it restricted to only 2023 models
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Is the noise only for GLC 300
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Humming sound
07-10-2024, 07:04 PM
#1
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Humming sound
My 2023 GLC 300 4Matic makes a humming sound between 48 to 52 mph and this happens precisely at this speed when my foot is off the accelerator. The dealer tells me that it is common to all GLC 300 models after 2023. Does anyone have this problem. I am in NJ USA
07-10-2024, 07:23 PM
#2
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
That said though, it could also be bad tires.
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