GLC Class (X253) Produced 2016-2022

Engine Sounds Diesel

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Old Aug 14, 2017 | 01:47 AM
  #1  
jonnylim82's Avatar
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GLC 250
Engine Sounds Diesel

I just my GLC 250 4matic delivered few weeks back. Upon picking up from the dealer, I noticed that the engine sounds like diesel engine, who the dealer who telling me that it was not warm yet.

After driving for several weeks, I feel that the engine is still sounds like diesel all at all conditions even after warmed up. My friend asked if it is a diesel car. They told me that gas car cant sounds this.

Is this normal and the engine is fxxxx?

I have uploaded the sounded to you tube as follows:



Yours advices will be much appreciated.
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Old Aug 14, 2017 | 07:38 AM
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GSOTXL's Avatar
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From: Winston-Salem, NC USA
2019 MB C300 4Matic (me); 2021 BMW 530i xDrive (husband)
I have a GLC 300 4Matic here in USA and its engine sounds just like that; I keep thinking it sounds like a diesel too. Peppy thing, though. I am amazed at the burst of speed acceleration even when already going highway speed.
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Old Aug 14, 2017 | 08:06 AM
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GLC 300d 4matic
Mine sounds like that too.....but then again mine is a 250d!
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Old Aug 14, 2017 | 10:04 AM
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They are suppose to sound like that. The gas engine is direct injected and does sound like a diesel. Both my Mercedes sound this way.
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Old Aug 14, 2017 | 09:04 PM
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Mercedes-Ben GLC300 4Matic
Originally Posted by dieseldoc
They are suppose to sound like that. The gas engine is direct injected and does sound like a diesel. Both my Mercedes sound this way.
i have a DI Lexus. Same thing
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Old Aug 14, 2017 | 09:19 PM
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2.5 litre, direct injection, turbocharger, whats not to love? My last 3 M-B were DI, 2 gas, 1 diesel. I honestly don't hear anything to be concerned over. BTW enjoy your new ride.

Last edited by davidjohnbamber; Aug 14, 2017 at 09:20 PM. Reason: sp
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Old Aug 14, 2017 | 10:49 PM
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GLC 250
Thanks everyone for the assurances. It is much appreciated.
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Old Aug 15, 2017 | 12:56 AM
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Mercedes GLE 350d 4Matic
If you wanted to hear a smoother sound of the engine you should have gone for two cylinders more.
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Old Aug 15, 2017 | 10:05 AM
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2018 GLC300 4matic SUV
Originally Posted by dieseldoc
They are suppose to sound like that. The gas engine is direct injected and does sound like a diesel. Both my Mercedes sound this way.
Ditto. Direct injection is noisy. My personal experience is with Audi, BMW, and Subaru DI 4-cyl engines. All were a bit diesel-y sounding, and especially so for the first few minutes after a cold start. Takes some getting used to.
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Old Aug 15, 2017 | 10:20 AM
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2006 C350
whew, I was worried about mine

glad to hear that it is normal. I was worried a bit about that sound from mine. glc300 4matic.
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Old Aug 15, 2017 | 01:28 PM
  #11  
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From: Bandon, Or.
2013 E550 Sedan
Originally Posted by yavor
If you wanted to hear a smoother sound of the engine you should have gone for two cylinders more.
Why not 4 or 8 more then?
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Old Aug 15, 2017 | 11:47 PM
  #12  
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'17 BMW X3, '18 GLC300 4Matic
Originally Posted by mtberman
Ditto. Direct injection is noisy. My personal experience is with Audi, BMW, and Subaru DI 4-cyl engines. All were a bit diesel-y sounding, and especially so for the first few minutes after a cold start. Takes some getting used to.
I did not know this! I keep telling my wife it sounds like a like sewing machine running. Now I know what to tell someone if they comment about how it sounds. MB sure does a good job of isolating the noise though.

Agree with GSO.....love how the thing will scoot if you need it to! Smoothly and quietly too.
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Old Aug 16, 2017 | 02:44 PM
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GLC300
I have a GLC300 and it makes the same sound. I brought it back to the dealer the 2nd day I had it. They said it was due to the 20,000 psi fuel injector pump. They also said if it didn't have the sound deadening cover it would sound like someone beating on the engine with a hammer.
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Old Aug 16, 2017 | 05:22 PM
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yavor's Avatar
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Mercedes GLE 350d 4Matic
Originally Posted by davidjohnbamber
Why not 4 or 8 more then?
Only because as far as I know there is no 8 cylinder engine for the GLC line. Apart from this the more cylinders the better.
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Old Aug 16, 2017 | 05:56 PM
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From: Bandon, Or.
2013 E550 Sedan
Originally Posted by yavor
Only because as far as I know there is no 8 cylinder engine for the GLC line. Apart from this the more cylinders the better.
GLC63?
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Old Aug 17, 2017 | 02:23 AM
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From: Melbourne, VIC, Australia
X253 GLC 43 (AU), X294 EQE 500 SUV (MY)
Originally Posted by yavor
Only because as far as I know there is no 8 cylinder engine for the GLC line. Apart from this the more cylinders the better.
There is.

The GLC63 and 63s have 4.0 V8 engines.

There also exist 6-cylinder GLCs - the 350d and the 43.
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Old Aug 18, 2017 | 11:48 PM
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Originally Posted by decorily
Mine sounds like that too.....but then again mine is a 250d!
Oh to have a "d" in the US. My GLC300 RWD sounds the same warm or cold.
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Old Aug 18, 2017 | 11:52 PM
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Originally Posted by decorily
Mine sounds like that too.....but then again mine is a 250d!
Oh to have a "d" in the US. .My GLC300 RWD sounds the same warm or cold.
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Old Aug 19, 2017 | 12:37 PM
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2021 GLE 450, 2017 GLC 300 4Matic, 2008 FJ Cruiser
Originally Posted by DESAL
Oh to have a "d" in the US. .My GLC300 RWD sounds the same warm or cold.
+1.
I miss the mileage I used to get on my TDI Passat. But couldn't pass up the offer VW gave me. Diesel for passenger cars are dead in the USA. And no I don't want a chevy or ford truck diesel.
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Old Aug 19, 2017 | 02:05 PM
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GLC 300d 4matic
I think diesel is going to become a thing of the past here in Europe also.
Love my 250d though !
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