vibrations
Thread Starter
Super Member
Joined: Feb 2015
Posts: 735
Likes: 64
From: USA
09E350, 07E63, 13CLS63
vibrations
When accelerated to around 70 miles/hr, I had some vibrations and the CEL flashing for a minute or so and then stays still. I also had some vibration at idle. What do I need to check? Transmission service and spark plugs were done at 60k, it now has 90k miles.
Thread Starter
Super Member
Joined: Feb 2015
Posts: 735
Likes: 64
From: USA
09E350, 07E63, 13CLS63
The CEL & vibration is on and off. When the vibration is on, I checked it with D, R, & N and the vibration was the same, so I guess it's not the tranny/engine mount problem. This morning, everything is back to normal. I did check for oil level and loose hoses but did not notice any thing abnormal.
Member
Joined: Nov 2017
Posts: 198
Likes: 20
2008 BMW M5, 2004 E55 AMG (RIP)
I believe a flashing CEL is indicative of a misfire, which would make sense with the vibrations you feel sometimes. Spark plugs shouldn’t be bad yet after 30k I wouldn’t think, but maybe plug wires or coil packs? Sounds like a misfire to me. Also, unless the codes were fully cleared manually, they should be stored so that you can see them even when the CEL is off
Thread Starter
Super Member
Joined: Feb 2015
Posts: 735
Likes: 64
From: USA
09E350, 07E63, 13CLS63
I believe a flashing CEL is indicative of a misfire, which would make sense with the vibrations you feel sometimes. Spark plugs shouldn’t be bad yet after 30k I wouldn’t think, but maybe plug wires or coil packs? Sounds like a misfire to me. Also, unless the codes were fully cleared manually, they should be stored so that you can see them even when the CEL is off
Last edited by dustinN; May 8, 2019 at 04:12 PM.
Thread Starter
Super Member
Joined: Feb 2015
Posts: 735
Likes: 64
From: USA
09E350, 07E63, 13CLS63
I believe a flashing CEL is indicative of a misfire, which would make sense with the vibrations you feel sometimes. Spark plugs shouldn’t be bad yet after 30k I wouldn’t think, but maybe plug wires or coil packs? Sounds like a misfire to me. Also, unless the codes were fully cleared manually, they should be stored so that you can see them even when the CEL is off
Trending Topics
Member
Joined: Nov 2017
Posts: 198
Likes: 20
2008 BMW M5, 2004 E55 AMG (RIP)
You nailed it in the head. CEL came back and it was ignition coils error. So am replacing them this morning. It's simple job. Unfortunately, I broke the tip plastic on 1 of them and I can't remove all the broken plastic in the connector so now I can't insert the new ignition. Can this plastic connector be replace easily? It has all the wires and I just don't know how to remove it. Please help!
MB World Stories
The Best of Mercedes & AMG
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look
Verdad Gallardo
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Thread Starter
Super Member
Joined: Feb 2015
Posts: 735
Likes: 64
From: USA
09E350, 07E63, 13CLS63
Error code read: P0302: Cylinder 2 misfire detected. P0352 Ignition Coil B Primary/Secondary Circuit.
Is cylinder 2 the 2nd one from the front, passenger side? This was the one missing 1 bolt that I have mentioned. I replaced the whole set of ignition coils. I've been driving for .5 hr but the CEL is still there. I guess will take some time for it to reset, correct? I replaced the spark plugs 30K miles ago, if the CEL is not clear the next few day, I guess I need to replace the spark plug on cylinder 2 again?
Is cylinder 2 the 2nd one from the front, passenger side? This was the one missing 1 bolt that I have mentioned. I replaced the whole set of ignition coils. I've been driving for .5 hr but the CEL is still there. I guess will take some time for it to reset, correct? I replaced the spark plugs 30K miles ago, if the CEL is not clear the next few day, I guess I need to replace the spark plug on cylinder 2 again?
Thread Starter
Super Member
Joined: Feb 2015
Posts: 735
Likes: 64
From: USA
09E350, 07E63, 13CLS63
Super Member
Joined: Jan 2017
Posts: 860
Likes: 80
From: Christchurch, New Zealand
CLS55
I wouldnt sweat it a few clips on my are broken and they work fine. Just make sure they're on snug the rubber prongs should hold them in place
Try unplugging your battery for an hour hopefully itll clear your cel?
Try unplugging your battery for an hour hopefully itll clear your cel?
Thread Starter
Super Member
Joined: Feb 2015
Posts: 735
Likes: 64
From: USA
09E350, 07E63, 13CLS63
This is what I've read: "In a coil-on-plug ignition system, if only one coil fails, you need only replace the faulty coil. Remaining functioning coils can be left in place."
Only 1 of the coils was bad but I replaced the whole set, kinda expensive, $60 a piece. Did I waste $$$?
Only 1 of the coils was bad but I replaced the whole set, kinda expensive, $60 a piece. Did I waste $$$?
Member
Joined: Nov 2017
Posts: 198
Likes: 20
2008 BMW M5, 2004 E55 AMG (RIP)
This is what I've read: "In a coil-on-plug ignition system, if only one coil fails, you need only replace the faulty coil. Remaining functioning coils can be left in place."
Only 1 of the coils was bad but I replaced the whole set, kinda expensive, $60 a piece. Am I wasting $$$?
Only 1 of the coils was bad but I replaced the whole set, kinda expensive, $60 a piece. Am I wasting $$$?
Member
Joined: Nov 2017
Posts: 198
Likes: 20
2008 BMW M5, 2004 E55 AMG (RIP)
Pull the small metal key out of the key fob, there is a key slot by the trunk handle above the license plate where you can manually pop the trunk. Turn the key and squeeze the handle while the key is still turned, you will have to squeeze the handle pretty hard. Don’t worry, you won’t break it. If it’s not opening when the handle is squeezed all the way, turn the key the other way and do it again.
Thread Starter
Super Member
Joined: Feb 2015
Posts: 735
Likes: 64
From: USA
09E350, 07E63, 13CLS63
Thank you so much for your help. I did that and was able to jump charge it. Battery dead without any warning.
I bought a new battery at MB dealership for $275.when I got home, check the price found out the range is around $120 - $140. What a rip off !
I bought a new battery at MB dealership for $275.when I got home, check the price found out the range is around $120 - $140. What a rip off !
