'13 W204 C300 shakes when accelerating
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Joined: Feb 2025
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'13 W204 C300 shakes when accelerating
Every time I accelerate hard my car shakes, I've changed spark plugs, engine mounts, and transmission mount and got new rims and tires. these did help my car a ton but none of this solved the issue. When I'm in neutral the car is fine but when I put it in drive (while stationary) I feel mild shaking through the steering wheel then whenever I punch the throttle the car starts shaking, almost like I'm driving over bumps, I can even hear all the coins in my car shaking.
It doesn't happen when cruising ONLY when I punch it. The only ideas I have are CV joints which I hope or my transmission is a goner, If that's the case I will be buying another w204 this was my first car and I love them.
My friend works at a Ford dealership so he's gonna try to take my car to the mechanic there to see what they say also.
It doesn't happen when cruising ONLY when I punch it. The only ideas I have are CV joints which I hope or my transmission is a goner, If that's the case I will be buying another w204 this was my first car and I love them.
My friend works at a Ford dealership so he's gonna try to take my car to the mechanic there to see what they say also.
Out Of Control!!
Joined: Apr 2019
Posts: 11,923
Likes: 6,776
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
shaking directions
Every time I accelerate hard my car shakes, I've changed spark plugs, engine mounts, and transmission mount and got new rims and tires. these did help my car a ton but none of this solved the issue. When I'm in neutral the car is fine but when I put it in drive (while stationary) I feel mild shaking through the steering wheel then whenever I punch the throttle the car starts shaking, almost like I'm driving over bumps, I can even hear all the coins in my car shaking.
It doesn't happen when cruising ONLY when I punch it. The only ideas I have are CV joints which I hope or my transmission is a goner, If that's the case I will be buying another w204 this was my first car and I love them.
My friend works at a Ford dealership so he's gonna try to take my car to the mechanic there to see what they say also.
It doesn't happen when cruising ONLY when I punch it. The only ideas I have are CV joints which I hope or my transmission is a goner, If that's the case I will be buying another w204 this was my first car and I love them.
My friend works at a Ford dealership so he's gonna try to take my car to the mechanic there to see what they say also.
So I am going to inquire about:
mileage of tranny ATF service ??
Fuel filter pressure reading ??
Whole chassis faults scan ??
Don't exclude one of the unbalanced cylinders may be failing.
Senior Member
Joined: Feb 2007
Posts: 319
Likes: 5
From: SoCal
C350 '12
The rear brace mount in all 204s is under a new MB warranty recall replacement because they were not rust proofed properly. I'm not remembering the exact name of the piece, but if you are in a colder climate, check to make sure the rear brace is not rusted out. It's pretty dangerous if it is.
Newbie
Joined: Mar 2022
Posts: 6
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2011 C300 4Matic Luxury
My c300 is about to reach 200k miles, I had the same problem and was solved replacing all the spark plugs and a couple of ignition coils that were bad. I remember people saying that clogged fuel injector can also result with these shaking issues.
Out Of Control!!
Joined: Apr 2019
Posts: 11,923
Likes: 6,776
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
recall
You can ask to renew ignition parts and not pay/save additional diagnostic charge and request inquiry of open recall at time of service.
Last edited by CaliBenzDriver; Feb 7, 2025 at 01:42 PM.
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Out Of Control!!
Joined: Apr 2019
Posts: 11,923
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
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