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Re: High whistling sound

Posted: Sun Apr 17, 2022 8:27 pm
by davidhartman00
@HarrisonB, is the noise the same as the noise that @AnasAwad filmed in the video?

Re: High whistling sound

Posted: Sun Apr 17, 2022 9:34 pm
by HarrisonB
No I don’t think so. That was a short clip. Mine raises in pitch as I accelerate and lowers as I decel. The noise is definitely associated with the motor.

Re: High whistling sound

Posted: Mon Jun 20, 2022 11:12 am
by davidhartman00
Thanks all! Today I get delivery of a 2017 B-Class that we are buying from Carvana!! Hopefully we don't have any issues.

Re: High whistling sound

Posted: Sun Aug 28, 2022 10:07 am
by stitchesuniforms
Through lots of research, I have found that that sound means you have an issue with the bearings in the motor. the mercedes dealer said I needed a new motor. I contacted QCCharge in Vista, Ca. and I'm going to replace the bearings and re-build the motor for $4,500. To me it's worth it. I have 50,000+ miles on mine and I think it's a great car.