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2017 Mercedes E300- Hear a humming noise from the rear? Normal? :-)

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Old 09-04-2024, 04:29 PM
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2017 Mercedes E300 (w213)
Talking 2017 Mercedes E300- Hear a humming noise from the rear? Normal? :-)

HI!

When I turn off my 2017 Mercedes E300 (W213) I can hear a humming noise- right rear back; like a small motor running for about five minutes, I never hear it again until I turn off the car after driving.

No problems with the car, no OBD codes!

Is this normal? Thanks in advance!
Old Today, 10:03 AM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by Massimo Here
HI!

When I turn off my 2017 Mercedes E300 (W213) I can hear a humming noise- right rear back; like a small motor running for about five minutes, I never hear it again until I turn off the car after driving.

No problems with the car, no OBD codes!

Is this normal? Thanks in advance!
Might need a video to determine what sound you are hearing.
Old Today, 11:08 AM
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2017 Mercedes E300 (w213)
im sure it wont pick it up, it is a very low sound.
Old Today, 11:19 AM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by Massimo Here
im sure it wont pick it up, it is a very low sound.
Does the vehicle have air suspension?
Old Today, 12:29 PM
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no sir
Old Today, 12:31 PM
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I thought it could be the backup camera but you said it lasts for 5 minutes, that is a significant amount of time, really need a sound clip to hopefully know what sound it is. It wouldn't be the parking brake too because that only lasts seconds.
Old Today, 12:40 PM
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Originally Posted by W205C43PFL
I thought it could be the backup camera but you said it lasts for 5 minutes, that is a significant amount of time, really need a sound clip to hopefully know what sound it is. It wouldn't be the parking brake too because that only lasts seconds.
I read its the fuel pump releasing extra air from it and its normal.
Old Today, 12:50 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by Massimo Here
I read its the fuel pump releasing extra air from it and its normal.
Where did you read that, I never heard such a thing on any MBs before, maybe I am not paying close enough attention?

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