W205 Accelerating Noise help

Discussion in 'Parts, Maintenance & Servicing' started by JamesPGUK, Dec 8, 2018.

  1. JamesPGUK

    JamesPGUK Member

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    Strange noise coming from footwell / right side engine area when accelerating. Any ideas on what to check? 7g box 2015 changes gear smoothly.

    When does the gearbox need servicing?
     
  2. Gazwould

    Gazwould Hardcore MB Enthusiast

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    Previous facelift W204 model was
    5 years / 77, 500 so the same ?
     
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    JamesPGUK

    JamesPGUK Member

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    My car is Dec 2015. Only just started making the noise. Like a kid blowing a raspberry in the footwell.

    NOX sensor was replaced recently so wondering if something was not put back right.

    Not sure when to service gearbox, done 57k?
     
    Last edited: Dec 8, 2018
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    JamesPGUK

    JamesPGUK Member

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    Hi any one any ideas it’s driving me crazy. Think it could be related to changing NOX sensor.
     
  5. gIzzE

    gIzzE MB Club Veteran

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    Not sure on noise, but if it happened after NOX sensor fitted I would be checking it in properly.

    Gearbox is 38k miles on the newer ones I believe.
     
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    JamesPGUK

    JamesPGUK Member

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    Hi, merc want diagnostic fee for looking at it, said it can’t be anything to do with NOX sensor being replaced.

    On the gearbox apparently it’s life / 100k which seems a lot before a service. 2015 merc estate mag premium plus c220 7 speed.
     
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    JamesPGUK

    JamesPGUK Member

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    Who’s best person on the site to contact about the cabin noise coming from the engine. Starting to get worried
     
  8. raspy

    raspy Active Member

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    @JamesPGUK I watched the video, can't think what's causing it. I would suggest getting the noise checked out, for peace of mind. When it comes to MB diagnostic costs, I've found that the price varies between dealerships considerably. For example, in London suburbs it's 202 quid, but 8 miles further in Hertfordshire, another MB dealer is offering for 75 quid.
     
  9. Sheffield Col

    Sheffield Col Hardcore MB Enthusiast

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    Hi, did this get sorted ?
     
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    JamesPGUK

    JamesPGUK Member

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    Hi, no not yet. Do you have same issue?
     
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    JamesPGUK

    JamesPGUK Member

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    Checked boot at bottom of steering column and it looks secure. No idea what the noise could be.
     
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    JamesPGUK

    JamesPGUK Member

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    No not yet, Checked boot at bottom of steering column and it looks secure. No idea what the noise could be.
     
  13. Sheffield Col

    Sheffield Col Hardcore MB Enthusiast

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    Hi, it's hard to tell but the noise does sound similar, but I only get it on occasions it's very random at the moment. I've not heard it for almost a week now.
     

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