2018 c43 amg engine whining noise

09-08-2019, 12:00 AM

#1

Sjl83tom

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2018 c43 amg

2018 c43 amg engine whining noise

My car is 2018 c43 6k miles only. Just did service A. Making this weird noise even in Park/ neutral or driving when reving.

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09-08-2019, 02:14 AM

#2

zibby43

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'20 GLC300 SUV

So, to clarify, it's making the noise even when just idling? Or only under throttle?

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09-08-2019, 03:03 PM

#3

Sjl83tom

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2018 c43 amg

Quote:

Originally Posted by zibby43

So, to clarify, it's making the noise even when just idling? Or only under throttle?

Only under throttle. I will try to post the video

Last edited by Sjl83tom; 09-08-2019 at 03:53 PM.

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09-08-2019, 05:05 PM

#4

jonathan358

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2018 Mercedes C43 AMG Coupe

Supercharged C43?

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09-09-2019, 05:55 AM

#5

Sjl83tom

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2018 c43 amg

Quote:

Originally Posted by jonathan358

Supercharged C43?

No supercharge. Just stock

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09-09-2019, 10:40 AM

#6

munis

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2021 Mercedes C63s AMG Coupe

Quote:

Originally Posted by Sjl83tom

Only under throttle. I will try to post the video
https://youtu.be/dySmaGtchw0

Dude, that sounds absolutely horrible. If I were you, I would stop replicating it and making videos, and go to the dealership ASAP. You car is under warranty. Let us know what it is though cause that does not sound good at all.

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09-09-2019, 11:04 AM

#7

MVEOVR

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2019 AMG C43 Sedan

Go see dealer ASAP especially if they just did service on it

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09-09-2019, 11:30 AM

#8

RichardCranium3

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'19 CLS450

Sounds like a dry power steering pump to me

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09-09-2019, 02:41 PM

#9

Sjl83tom

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2018 c43 amg

Quote:

Originally Posted by RichardCranium3

Sounds like a dry power steering pump to me

Isn’t it electric?

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09-09-2019, 03:03 PM

#10

blaise

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CLS400-3"downpipes cls63 exhaust and bbk BMS intake AMR rv3.1, 12.1@119mph 1.9 60'

Sounds like alternator is going bad. Definitely have it looked at, good luck.

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09-09-2019, 03:27 PM

#11

RichardCranium3

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'19 CLS450

Quote:

Originally Posted by Sjl83tom

Isn’t it electric?

It very well might be, but that's the same sound of a PS system with insufficient fluid.

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09-09-2019, 07:46 PM

#12

AMGiggity

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nothing

sounds like N20 with timing chain about to go bust

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09-20-2019, 07:40 PM

#13

Sjl83tom

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2018 c43 amg

Quote:

Originally Posted by munis

Dude, that sounds absolutely horrible. If I were you, I would stop replicating it and making videos, and go to the dealership ASAP. You car is under warranty. Let us know what it is though cause that does not sound good at all.

Dealer is saying its the belt tensioner!

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08-24-2021, 10:33 AM

#14

George_1992

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C63 S Coupe

What does it sound like?

Wrong thread argh

Last edited by George_1992; 08-24-2021 at 01:31 PM.

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08-29-2021, 04:29 AM

#15

TLADILA

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2017 Mercedes-Benz C43 AMG Sedan

Quote:

Originally Posted by Sjl83tom

My car is 2018 c43 6k miles only. Just did service A. Making this weird noise even in Park/ neutral or driving when reving.

holy **** dude that sounds horrible, you might have a lemon car.
Return this car to the dealership asap.

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08-29-2021, 05:11 PM

#16

W205C43PFL

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PFL205.064 with M276.823 (Oil pump solenoid defeated)

Since we don't have an update from OP other than him mentioning the belt tensioner was replaced I am hoping the fix did it and lasted for him and he is enjoying the car now.