C300 (Sports Sedan -2009)
06-23-2020, 02:31 PM
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C300 Sports Sedan
C300 (Sports Sedan -2009)
There's a whistling noise heard in the cabin (don't hear this outside or in the engine area). It comes on when the car is idling at a light. Generally, goes away when the car is accelerating. Usually don't hear the noise in the morning when the engine is cold. I started to notice the noise after a repair done recently; the brake vacuum pump was replaced. Not sure if this is related or not. Has anyone experienced this. If so, how do I fix this? Thanks, Kumar.
06-23-2020, 04:02 PM
#2
There's a whistling noise heard in the cabin (don't hear this outside or in the engine area). It comes on when the car is idling at a light. Generally, goes away when the car is accelerating. Usually don't hear the noise in the morning when the engine is cold. I started to notice the noise after a repair done recently; the brake vacuum pump was replaced. Not sure if this is related or not. Has anyone experienced this. If so, how do I fix this? Thanks, Kumar.
