Is this wrist pin or normal engine sound?
Thread Starter
Junior Member
Joined: Sep 2018
Posts: 45
Likes: 4
C400
Is this wrist pin or normal engine sound?
I am nearing the end of my warranty for the c400. Planning to get extended warranty as well in Canada. I was reading about the wrist pin issue, let me know if this is it or this is completely normal. Also share your thoughts on extended warranty coverage. Thanks.
https://youtu.be/H5MgzR_mLl0
https://youtu.be/H5MgzR_mLl0
Member
Joined: Jan 2018
Posts: 153
Likes: 33
2015 C 300 4MATIC
I am nearing the end of my warranty for the c400. Planning to get extended warranty as well in Canada. I was reading about the wrist pin issue, let me know if this is it or this is completely normal. Also share your thoughts on extended warranty coverage. Thanks.
https://youtu.be/H5MgzR_mLl0
https://youtu.be/H5MgzR_mLl0
Junior Member
Joined: Apr 2019
Posts: 42
Likes: 10
From: Toronto, Canada
C300
What do you guys make of this?
Engine # 274920 E0 016710
(Outside mounted camera - Listen at 0:45 and 0:53)
(Camera from car interior - Showing tachometer)
Engine # 274920 E0 016710
(Outside mounted camera - Listen at 0:45 and 0:53)
(Camera from car interior - Showing tachometer)
Last edited by charmz; Apr 30, 2019 at 10:13 PM.
Super Member
Joined: Mar 2018
Posts: 740
Likes: 135
From: Westchester County, NY
‘15 C300 4M Sport, ‘20 GLC300
What do you guys make of this?
Engine # 274920 E0 016710
(Outside mounted camera - Listen at 0:45 and 0:53)
https://vimeo.com/333172704
(Camera from car interior - Showing tachometer)
https://vimeo.com/333173227
Engine # 274920 E0 016710
(Outside mounted camera - Listen at 0:45 and 0:53)
https://vimeo.com/333172704
(Camera from car interior - Showing tachometer)
https://vimeo.com/333173227
Senior Member
Joined: Mar 2018
Posts: 323
Likes: 103
From: Central Florida
'15 C400 and '15 ML350
C400 doesnt have a wrist pin issue. Only C300 with 4 cylinder motor had the issue on early years.
Noise is likely fuel pump and direct injector tick.
If you still have remaining warranty take it in for final look over.
There is a thread on things dealers have fixed on the C400, it isnt much that would require replacing but many complain about front axle click, though its not a failure just noise.
Noise is likely fuel pump and direct injector tick.
If you still have remaining warranty take it in for final look over.
There is a thread on things dealers have fixed on the C400, it isnt much that would require replacing but many complain about front axle click, though its not a failure just noise.
Thread Starter
Junior Member
Joined: Sep 2018
Posts: 45
Likes: 4
C400
C400 doesnt have a wrist pin issue. Only C300 with 4 cylinder motor had the issue on early years.
Noise is likely fuel pump and direct injector tick.
If you still have remaining warranty take it in for final look over.
There is a thread on things dealers have fixed on the C400, it isnt much that would require replacing but many complain about front axle click, though its not a failure just noise.
Noise is likely fuel pump and direct injector tick.
If you still have remaining warranty take it in for final look over.
There is a thread on things dealers have fixed on the C400, it isnt much that would require replacing but many complain about front axle click, though its not a failure just noise.
Thanks man! I'm thinking of getting the tune you currently have. It's piggy back right? I'm looking for honest reviews of experience with this mod. Any info on the value of extended warranty as well.
Curious about daily drive experience, ease of install and uninstall, long term safety etc.
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Thread Starter
Junior Member
Joined: Sep 2018
Posts: 45
Likes: 4
C400
I am hearing all kinds of weird sound I didn't use to hear with the car, but there's no performance issues or warnings. So i'm guessing it's fine! But I wish it was smoother!
Has anyone tried those gas/fuel system treatments on these cars ?
Has anyone tried those gas/fuel system treatments on these cars ?
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