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Engine noise on 2015 s550 4matic

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Old Oct 23, 2014 | 05:26 PM
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Engine noise on 2015 s550 4matic

I recently took delivery of my 2015 s550 4matic, I love the car but was surprised at engine noise it currently has less than 1000 miles, there is a wizzing sound a low revs. I took it to the dealer and they basically said it was normal and due to direct injection fuel pump. Have other owners found the engine noisy?
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Old Nov 10, 2014 | 06:24 AM
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W222 S320 (Chinese Model)
Here in China, they sale all turbo engine here, S320/400 with 3.0T engine. lots of noise from this turbo engine and lots of complain here. Is your S550 is a turbo engine?
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Old Nov 10, 2014 | 11:50 AM
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2013 650i Coupe, 2010 IS250 AWD, 1999 S500
All direct injection engines are going to make noise until they warm up and Mercedes' A/C system is one of the noisiest going from outside the car. Just the way it is.

A S550/S500 models are turbo V8s.

M
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Old Nov 10, 2014 | 06:27 PM
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W222 S320 (Chinese Model)
The problem is the noise is not only hearing from out side the car, but also can be heard in the car when quiet, e.g. speed below 40KM/Hour. It like cricket/ticking noise. I drive BMW 535 (3.0T turbo engine) and Audi A8 3.0T turbo engine, they all do not like this.
Local deal said it is high pressure pump sound, and cannot be solved. Any idea about this issue? I found another post about this issue in Benzworld forum, see below
http://www.benzworld.org/forums/w222...ing-noise.html
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Old Nov 11, 2014 | 05:13 PM
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2013 650i Coupe, 2010 IS250 AWD, 1999 S500
You shouldn't hear anything inside the car though. That is not acceptable IMO.

M
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Old Nov 11, 2014 | 05:57 PM
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Drive another 2014 or 2015 s550 on the dealership's lot WITH the guy that told you it's a normal sound

Then determine your next move
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Old Nov 11, 2014 | 06:50 PM
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W222 S320 (Chinese Model)
It is not only my car has the problem, we have a BENZ Forum in Chinese, more then 20 owner has the same issue. But some has no such problem. I drive another BENZ S400 in the dealer's shop, it has same sound. It really lower BENZ S car and make it like a cheap car.

Last edited by jiyang; Nov 11, 2014 at 06:56 PM.
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Old Nov 17, 2014 | 11:52 AM
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Originally Posted by pbibi
I recently took delivery of my 2015 s550 4matic, I love the car but was surprised at engine noise it currently has less than 1000 miles, there is a wizzing sound a low revs. I took it to the dealer and they basically said it was normal and due to direct injection fuel pump. Have other owners found the engine noisy?
My 2014 S550 makes some noise when engine is cold and one is listening to it from the outside. However, inside, this is the quietest car I have ever owned. It is even quieter than the LS I previously owned and that is saying something.
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Old Nov 17, 2014 | 10:24 PM
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W222 S320 (Chinese Model)
And you cannot imaging how much they sale the car here in China.
S320= USD160-175K
S400= USD 200-230K
S500= USD 350K
S600= USD 450K
And for a car sale that price but you still can hear the cricket/ticking noise, I cannot believe it.
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Old Nov 18, 2014 | 01:54 PM
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2013 650i Coupe, 2010 IS250 AWD, 1999 S500
Really wish we could hear this noise.

M
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