Mercedes GLA Forums - View Single Post - GLA 220d high pitch whine noise
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post #2 of (permalink) Old 11-16-2019, 12:53 PM
Junior Member
Join Date: Mar 2019
Posts: 19

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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