2014 C250 Jerks when accelerating, no warning lights on dash
Thread Starter
Newbie
Joined: Apr 2024
Posts: 1
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From: Los Angeles
2014 C250
2014 C250 Jerks when accelerating, no warning lights on dash
Hello everyone! newbie of this forum here.
I recently started noticing a moderate and short lived jerking/shaking when 1. press the gas pretty hard when getting onto the freeway and 2. slowdown for traffic and accelerate again to the 50-60 mph range, it lasts about a few seconds but very noticeable and it goes away. i don't experience this when driving low speed on surface streets. I visited a certified mechanic and he believes that this is due to the worn out engine/transmission mount and replacement would cost $1,400 and should resolve the jerking issue. If anyone had the same problem i would really appreciate your advise!
2014 C 250 with 70K miles
there is no warning lights on my dash
recently replaced all sparkplugs to resolve P0304 code
recently replaced throttle housing to resolve P0068 code
Thank you in advance
I recently started noticing a moderate and short lived jerking/shaking when 1. press the gas pretty hard when getting onto the freeway and 2. slowdown for traffic and accelerate again to the 50-60 mph range, it lasts about a few seconds but very noticeable and it goes away. i don't experience this when driving low speed on surface streets. I visited a certified mechanic and he believes that this is due to the worn out engine/transmission mount and replacement would cost $1,400 and should resolve the jerking issue. If anyone had the same problem i would really appreciate your advise!
2014 C 250 with 70K miles
there is no warning lights on my dash
recently replaced all sparkplugs to resolve P0304 code
recently replaced throttle housing to resolve P0068 code
Thank you in advance
MBWorld Fanatic!
Joined: Sep 2013
Posts: 2,346
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2021 GLB250 FWD, 2023 GLA250 FWD, 2013 C250, 2015 GLK350, 2005 ML350SE, 2003 E320
That price sounds high for a C250, but LA prices may be higher than Houston. If the suggestion from @TimC300 does not show any issues, scan the transmission for codes. Many transmission problems don’t turn on the CEL.
Newbie
Joined: Sep 2024
Posts: 3
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In regards to C250 2014 Mounts
So the trans mounts and the engine mounts don’t actually go out man. I own a 2014 c250 and also a certified mechanic. I know the c250 in and out.
Your lack of power is going to be
1) Coil Pack is shorting out because water or oil is in the plug hole or holes. Or Coil is going out.
Your lack of power is going to be
1) Coil Pack is shorting out because water or oil is in the plug hole or holes. Or Coil is going out.
Junior Member
Joined: Sep 2024
Posts: 50
Likes: 14
C200 w204
As for a failing coil pack, one has to ask since the spark plugs were changed to resolve the P0304 error (Misfire Cylinder 4) has the car been scanned to see if any misfire errors have returned?
Last edited by bazzbazz; Sep 9, 2024 at 01:23 AM.
Member
Joined: Dec 2023
Posts: 217
Likes: 74
From: TN
2013 w204 c250 coupe & 2001 Dodge Ram 2500 24v Cummins
@ItsmemishG - hey man, I have a 2013 c250 and can confirm the engine mounts and trans mount can go bad.
i posted a video on my YouTube showing the blown out engine mount vs the good one. My cars engine would rattle the exhaust at idle because the mounts were fully collapsed. So yes, they can go bad.
my car was not jerking but, if the trans mount is badly worn then I suppose it could cause a skip/jerk? But cannot confirm that.
if you plan to do the engine mounts yourself it’s not that hard of a job. I did it on my back with ramps, 2x4’s and a jack to lift the engine up.
i posted a video on my YouTube showing the blown out engine mount vs the good one. My cars engine would rattle the exhaust at idle because the mounts were fully collapsed. So yes, they can go bad.
my car was not jerking but, if the trans mount is badly worn then I suppose it could cause a skip/jerk? But cannot confirm that.
if you plan to do the engine mounts yourself it’s not that hard of a job. I did it on my back with ramps, 2x4’s and a jack to lift the engine up.
