Car shuddering at idle/Check engine light
#1
Member
Thread Starter
Join Date: Jul 2004
Location: Atlanta
Posts: 185
Likes: 0
Received 0 Likes
on
0 Posts
2015 E350 Sport
Car shuddering at idle/Check engine light
My 05 C230 has started to stutter and have a very rough idle. It started after the dealer had closed today so I left a message for my service adviser to call me at work to get it in asap. The gas tank is half way through and this hasn't happened before (not sure if it's gas related). Car says Service A due in 200 miles and it wasn't until I took it for another spin tonight that the check engine light went on. Any thoughts on what this could be?
#2
MBWorld Fanatic!
Do a search in this forum on 'pcv hose', and also see the very recent thread on 'm271 owners go to the dealer no free work'. That would be my guess ...
#5
Super Moderator
![](https://staticssl.ibsrv.net/autocomm/Content/MB/mbwambassador2.gif)
this happened to me over 2 years ago. the car would shudder and the CEL light was on and it would stall if you didn't give it enough gas. well, I took it to the dealer and they said that all it needed was an ECU reset and they updated the software. 30k miles later, it's never happened again.
#7
Shuddering at Idle
Same thing started happening to me. It turned out to be the spark plug wires. A while back I had the spark plugs replaced becuase it was time for that but the spark plug wires were left alone and had become corroded around the ends. Replaced them in the garage and all is well. MB wanted too much for install just got the wires at cost through a mechanic friend. Not to much hassle to install.
Trending Topics
#9
Same thing started happening to me. It turned out to be the spark plug wires. A while back I had the spark plugs replaced becuase it was time for that but the spark plug wires were left alone and had become corroded around the ends. Replaced them in the garage and all is well. MB wanted too much for install just got the wires at cost through a mechanic friend. Not to much hassle to install.
#10
Senior Member
Join Date: Apr 2003
Location: San Diego, CA
Posts: 472
Likes: 0
Received 0 Likes
on
0 Posts
'14 A6 3.0 TFSI
I experienced a similar issue and they ended up replacing the alternator around 45k. In addition to the check engine light, I also received an alternator error message in the info display when this happened, so it is likely a different issue if you didn't receive the secondary error message.
#11
MBWorld Fanatic!
Join Date: Mar 2007
Location: Houston, TX
Posts: 1,948
Likes: 0
Received 3 Likes
on
2 Posts
C32/C55 AMG
I'm having the same problem in my c32. It's probably time to change the spark plugs and wires, but I'm not due for that service for another 8k miles. The bad thing is that I have no check engine light.