GLA 220d high pitch whine noise - Mercedes GLA Forums
 
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post #1 of 2 (permalink) Old 11-09-2019, 03:03 PM Thread Starter
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Join Date: Nov 2019
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GLA 220d high pitch whine noise

Hi All,

I've just taken purchase of a 2016 GLA 220d AMG Line 4 matic. I've noticed a high pitching whining noise, which is pretty much constant when the engine is running. I tried turning on and off just about every button/gadget/heater to try and eliminate and I've managed to pinpoint the noise coming from the drivers footwell, which I suppose probably means from the engine bay? It only starts when the engine starts so I'm guessing maybe fuel pump or a belt? Any advice would be helpful. Thanks
Kerbo is offline  
post #2 of 2 (permalink) Old 11-16-2019, 12:53 PM
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Join Date: Mar 2019
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Hi,

Does the whine start as soon as you start the car and are stationary or when you start to move?
Fuel pumps can whine but worth going into Merc to have it diagnosed, an engineer might be able to tell you on the spot.
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