high pitched whistle when accelerating lightly
Hi all
Mine's the 2.0 petrol turbo with only 6,000 km on the clock.
is it normal to hear a high-pitched whistle (almost like the wastegate sound except without fluttering) while accelerating?
I can hear this in underground carparks and even on the open road at low speed with window down. When I release the accelerator the sound stops , and then i hear the wastegate flutter...
I never had this on other turbo cars, even on older BMW twin turbo E90.
Could it be a problem or is that normal on the newer B48 engines?
cheers
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2019 X3 M40i, Sophisto grey, H/K, pano
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