W212 AMG Discuss the W212 AMG's such as the E63

Car applies gas and accelerates by itself, then stops

Old Jan 26, 2017 | 04:18 AM
  #1  
Zod's Avatar
Zod
Thread Starter
MBWorld Fanatic!
 
Joined: Jan 2007
Posts: 2,597
Likes: 19
From: Kuwait
CLS55 2006, CLS 63S 2015
Exclamation Car applies gas and accelerates by itself, then stops

As the title states, it first happened to me in traffic, I was hearing the engine/ drive line engaging, as if it would when you put your foot on the gas...but thing is, my foot wasn't.

So I was at a complete stop, traffic opened up a little and I let the car coast from a stand still and to my surprise it moved as if gas was applied up to just about over 1k rpm and then stops, then it would repeat its self again after a brief period.

Any one face this? its as if you are driving a manual car and it does it not to stall, but with out your intervention

Put car in drive and let it drive it's self and see how your RPM acts

In the vid right at the start top right corner, you see the van informant of me move, here I let off the brakes and rest is all the car..and no distroinc is no engaged

Replicated it on an empty road and happens as well


Went to get it checked at dealer, no codes stored and are baffled as to what is happening

Last edited by Zod; Jan 26, 2017 at 04:23 AM.
Reply
Old Jan 26, 2017 | 09:30 AM
  #2  
looney100's Avatar
Super Member
 
Joined: Dec 2010
Posts: 746
Likes: 26
None
"Creeping" is normal, the variation in speed/RPM is not. I wonder if you have a vacuum issue or something else that is causing rough idle, which, when the gear is engaged causes you to accelerate.
Reply
Old Jan 26, 2017 | 09:36 AM
  #3  
sunil517's Avatar
Super Member
15 Year Member
Photogenic
Photoriffic
 
Joined: Nov 2010
Posts: 746
Likes: 48
From: Queens,NYC
2014 E63s 1993 mazda rx7 on Boost
Was your A/C on

Engine RPM with change with the A/C turning on/off.
Reply
Old Jan 27, 2017 | 09:30 AM
  #4  
Zod's Avatar
Zod
Thread Starter
MBWorld Fanatic!
 
Joined: Jan 2007
Posts: 2,597
Likes: 19
From: Kuwait
CLS55 2006, CLS 63S 2015
Originally Posted by sunil517
Engine RPM with change with the A/C turning on/off.
It was on, but eco is off. So no turning off and on

''looney100''
I to thought it might be a leak, but car idles fine. Its just that if left to its self, as you state creep, it over creeps then backs off

Other then that car is more then fine

Last edited by Zod; Jan 27, 2017 at 09:35 AM.
Reply
Old Jan 27, 2017 | 10:06 AM
  #5  
sunil517's Avatar
Super Member
15 Year Member
Photogenic
Photoriffic
 
Joined: Nov 2010
Posts: 746
Likes: 48
From: Queens,NYC
2014 E63s 1993 mazda rx7 on Boost
I thought ECO is offline if A/C and Defog were turned on

I remember when I first got me car ECO would not active due to A/C being on. This was in the summer and demand was great... Once I found the ECO to be working as it should.. I turn it off. Maybe a tune can turn ECO off for good. Try driving with ECO off if anything changes...
Reply
Old Jan 29, 2017 | 03:13 AM
  #6  
10speed's Avatar
Senior Member
 
Joined: Jul 2016
Posts: 390
Likes: 27
From: Queens,New York
E63s
Originally Posted by sunil517
I remember when I first got me car ECO would not active due to A/C being on. This was in the summer and demand was great... Once I found the ECO to be working as it should.. I turn it off. Maybe a tune can turn ECO off for good. Try driving with ECO off if anything changes...
My car is in the dealer so I can't try this , remember when in comfort mode the trans starts off in 2nd gear the computer might compensate this with rpm to move the car easier , try it in sport , sport plus , and in manual mode the rpms raise a little at idle , not sure what mode you where in when this happened, it's just another thought

I just checked the vid again you where in comfort I seen the 2 in the cluster

Last edited by 10speed; Jan 29, 2017 at 03:15 AM.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 07:28 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE