Vibration On Start Up & Idling
Thread Starter
Junior Member
Joined: Nov 2016
Posts: 56
Likes: 7
2014 ML63s
Vibration On Start Up & Idling
My recently purchased 2014 63 started randomly vibrating when both starting up and also idling at lights. Like it was an engine miss or something. But RPM doesn't dip and no sounds. Can't feel any vibrations at high speed (but if I am at lights and take RPM to say 2K and it does "the issue" the RPM needle will dip). Does it in neutral, parked, gear. Sports, C, eco, etc. The car performs well at all other times except idling/startup. It doesn't do it every time I idle at lights (maybe 25-40% at idle), but does it 99% of the time when starting up.
Took the car back to the dealer and after 2 days of diagnosis they said the engine and transmission mounts needed replacing. This was done and I was relieved as that seemed to be the #1 cause from the forums.
Got the car back and all seemed fixed! That lasted about 2 weeks and now the issue is back! The EXACT SAME THING IS HAPPENING.
Have tried different fuel - no difference.
Reading other threads people are suggesting:
No codes, no CEL, ever. Oil level is good. 50K miles.
Took the car back to the dealer and after 2 days of diagnosis they said the engine and transmission mounts needed replacing. This was done and I was relieved as that seemed to be the #1 cause from the forums.
Got the car back and all seemed fixed! That lasted about 2 weeks and now the issue is back! The EXACT SAME THING IS HAPPENING.
Have tried different fuel - no difference.
Reading other threads people are suggesting:
- vacuum leak from intake manifold gasket
- engine harness (oil migration)
- defective intake adjuster
- fuel pump
- ignition coils
No codes, no CEL, ever. Oil level is good. 50K miles.
Last edited by mdotk; May 12, 2019 at 06:49 AM.
Junior Member
Joined: Dec 2015
Posts: 35
Likes: 1
E63 AMG
My recently purchased 2014 63 started randomly vibrating when both starting up and also idling at lights. Like it was an engine miss or something. But RPM doesn't dip and no sounds. Can't feel any vibrations at high speed (but if I am at lights and take RPM to say 2K and it does "the issue" the RPM needle will dip). Does it in neutral, parked, gear. Sports, C, eco, etc. The car performs well at all other times except idling/startup. It doesn't do it every time I idle at lights (maybe 25-40% at idle), but does it 99% of the time when starting up.
Took the car back to the dealer and after 2 days of diagnosis they said the engine and transmission mounts needed replacing. This was done and I was relieved as that seemed to be the #1 cause from the forums.
Got the car back and all seemed fixed! That lasted about 2 weeks and now the issue is back! The EXACT SAME THING IS HAPPENING.
Have tried different fuel - no difference.
Reading other threads people are suggesting:
No codes, no CEL, ever. Oil level is good. 50K miles.
Took the car back to the dealer and after 2 days of diagnosis they said the engine and transmission mounts needed replacing. This was done and I was relieved as that seemed to be the #1 cause from the forums.
Got the car back and all seemed fixed! That lasted about 2 weeks and now the issue is back! The EXACT SAME THING IS HAPPENING.
Have tried different fuel - no difference.
Reading other threads people are suggesting:
- vacuum leak from intake manifold gasket
- engine harness (oil migration)
- defective intake adjuster
- fuel pump
- ignition coils
No codes, no CEL, ever. Oil level is good. 50K miles.
hope that it fixes that issues. Also have to replace my intake manifold gaskets, full brakes all around and front struts soon.
MBWorld Fanatic!
Joined: Jun 2014
Posts: 1,589
Likes: 683
From: IL
19 E63s, 23 M3 compX, B9 SQ5
Had the same issue on my 2014 E63 couple years ago. Had motor mounts replaced, and trans mount. It was the front 4matic driveshaft.
https://mbworld.org/forums/w212-amg/...t-install.html
https://mbworld.org/forums/w212-amg/...t-install.html
Super Member
Joined: Oct 2014
Posts: 505
Likes: 39
2016 E63s Wagon - CCB & CF package
Have you had any exhaust work done lately?
I ask because if you removed resonators and replaced them with straight pipes, it can cause a shaking at idle. The two banks fire in such a way that the exhaust moves side to side, causing the car to feel like it's shaking. There needs to be some sort of a crossover between the banks.
I ask because if you removed resonators and replaced them with straight pipes, it can cause a shaking at idle. The two banks fire in such a way that the exhaust moves side to side, causing the car to feel like it's shaking. There needs to be some sort of a crossover between the banks.
Junior Member
Joined: Dec 2015
Posts: 35
Likes: 1
E63 AMG
Had the same issue on my 2014 E63 couple years ago. Had motor mounts replaced, and trans mount. It was the front 4matic driveshaft.
https://mbworld.org/forums/w212-amg/...t-install.html
https://mbworld.org/forums/w212-amg/...t-install.html
Junior Member
Joined: Dec 2015
Posts: 35
Likes: 1
E63 AMG
- Tam
Last edited by TTTAAAMMM; May 15, 2019 at 04:47 PM.
Trending Topics
Super Member
Joined: May 2014
Posts: 818
Likes: 79
From: Vancouver B.C. Canada
2014 E550 4MATIC TUNED - Turbo Upgraded Stage 3
MB World Stories
The Best of Mercedes & AMG
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
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Super Member
Joined: May 2014
Posts: 818
Likes: 79
From: Vancouver B.C. Canada
2014 E550 4MATIC TUNED - Turbo Upgraded Stage 3
As i remember injector replacement needs Xentry system to verify after injector is replaced.
Thread Starter
Junior Member
Joined: Nov 2016
Posts: 56
Likes: 7
2014 ML63s
Thanks, you mean in order to keep a factory warranty? I have a 3rd party warranty. Would independents have access to Xentry? They got the part direct from MB here.
Senior Member
Joined: Oct 2018
Posts: 497
Likes: 416
From: NYC
AMG
This is correct, the injector has a # on it which you need to take a picture of or write down, that needs to be entered into the ecu via xentry. It is a compensation # and most modern direct injection motors have this nowadays.
Replace all seals and such aswell and once you remove the protective cap off the inejctor, it needs to be installed quickly as the seals swell up.
Most shops have Xentry, or some sort of program that might do this job. Like i said, this isnt the first motor that needs this injector to be programmed so most shops are familiar.
Junior Member
Joined: Mar 2019
Posts: 56
Likes: 2
From: North Valley, California
2014 Mercedes E63 AMG
interesting post......I had the similar issue over the weekend. I drove the car about 10 miles then check engine light came on. the car drove very bad. it was idling from 600 rpm at a stop then drops to 400 rpm. Back and forth from 600 to 400 rpms.
I pulled over to the road and turn off motor. re-start it, check engine light went away and no more idling back and forth. seems like it issue went away?
I purchased the extended warranty from Mercedes so I will be taking it there to get a diagnoisic test. I just purchased it a month ago, it is a 2014 E63 AMG S with 48K miles.
I pulled over to the road and turn off motor. re-start it, check engine light went away and no more idling back and forth. seems like it issue went away?
I purchased the extended warranty from Mercedes so I will be taking it there to get a diagnoisic test. I just purchased it a month ago, it is a 2014 E63 AMG S with 48K miles.
Thread Starter
Junior Member
Joined: Nov 2016
Posts: 56
Likes: 7
2014 ML63s
No I don't think they found a code (and I never got a CEL). I think they hooked the car up to a laptop and saw the faulty injector on some graph software? Sorry not techie like that...
Anyway, my vibration problem is now gone.
It's interesting that I still do get the very occasional and slight/quick vibration when idle. It is minuscule but noticeable nonetheless (maybe because I am watching for it!). I am not worried about it. it's a big engine and I have new engine and tranny mounts so can't be those.
Start ups and revving then idling are now smooth as (these were the 2 times when my old miss/vibration would be most noticeable).
Anyway, my vibration problem is now gone.
It's interesting that I still do get the very occasional and slight/quick vibration when idle. It is minuscule but noticeable nonetheless (maybe because I am watching for it!). I am not worried about it. it's a big engine and I have new engine and tranny mounts so can't be those.
Start ups and revving then idling are now smooth as (these were the 2 times when my old miss/vibration would be most noticeable).
Junior Member
Joined: Mar 2019
Posts: 56
Likes: 2
From: North Valley, California
2014 Mercedes E63 AMG
CEL was trigger at high rpm
In my case, car drives and idles fine at lower rpm, when rpm reach over 4000 rpm, CEL comes on and idles rough. Tech told me injector 6 and 8 are misfiring. I purchased the car least than two months, with 3 year extended warranty. They also told me the car has a O2 link somewhere. After tech reprogrammed the 6 and 8 injectors, car idles fine, no more rough idling and misfiring at any rpm, but still looking for the O2 link. Car feels weaker???
Junior Member
Joined: Mar 2019
Posts: 56
Likes: 2
From: North Valley, California
2014 Mercedes E63 AMG
just picked up my E63 and the dealership reprogrammed the number 6 and 8 injectors due to misfiring issue. no more misfiring issue now......the dealership also replaced the air filters with factory ones and no more O2 leak code.
not sure what the codes were since they did not tell me, but the car drives fine now and no more CEL or rough idling at any RPM.
not sure what the codes were since they did not tell me, but the car drives fine now and no more CEL or rough idling at any RPM.
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
Likes: 3,228
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
just picked up my E63 and the dealership reprogrammed the number 6 and 8 injectors due to misfiring issue. no more misfiring issue now......the dealership also replaced the air filters with factory ones and no more O2 leak code.
not sure what the codes were since they did not tell me, but the car drives fine now and no more CEL or rough idling at any RPM.
not sure what the codes were since they did not tell me, but the car drives fine now and no more CEL or rough idling at any RPM.
Junior Member
Joined: Mar 2019
Posts: 56
Likes: 2
From: North Valley, California
2014 Mercedes E63 AMG
Injector program issue
In my case, yes. Tech told me he reprogrammed injector 6 and 8. Once he did that, idle very smooth and no more code. I already drove over 100 miles with no issue now
