S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

2003 s600 misfire

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 19, 2016 | 08:11 PM
  #1  
gersandaniel's Avatar
Thread Starter
Newbie
 
Joined: May 2014
Posts: 3
Likes: 0
2003 s600
2003 s600 misfire

Hi; need help, on my 2003 s600 I have misfire codes on cylinders 7-12. Had coil pack rebuild, transformer check ,replace o2 sensors, MAP sensors,Charge air temperature sensor,upstream and downstream of air cleaner sensors Crankshaft position sensor and camshaft position sensors and new plugs. Reset codes, drove car 100 yards ckeck engine came on . what to do next?
Reply
Old Dec 20, 2016 | 02:54 PM
  #2  
Welwynnick's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
Which plugs?


Under what circumstances does it misfire?


Nick
Reply
Old Dec 20, 2016 | 11:16 PM
  #3  
gersandaniel's Avatar
Thread Starter
Newbie
 
Joined: May 2014
Posts: 3
Likes: 0
2003 s600
plugs 7-12 also when the car is driven or just in park. The car can hot or cold. gersandaniel.
Reply
Old Dec 21, 2016 | 06:11 AM
  #4  
Welwynnick's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
OK. What's the make and part number of the plugs?
Reply
Old Jan 15, 2017 | 08:16 PM
  #5  
gersandaniel's Avatar
Thread Starter
Newbie
 
Joined: May 2014
Posts: 3
Likes: 0
2003 s600
The plugs are OEM plugs Part#004-159-14-03. I also had the voltage transformer rebuild. The car did ok for about a week then started the misfire again. Thinking about putting on a new voltage transformer. running out of options.
Reply
Old Jan 16, 2017 | 12:54 AM
  #6  
AlexMercedes's Avatar
Senior Member
 
Joined: Aug 2014
Posts: 370
Likes: 31
S55 AMG
Looks like your voltage transformer gave up again after being rebuilt. I would advise getting a new one, since one whole bank of cylinders misfiring usually indicates a voltage transformer problem.
Reply
Old Jan 16, 2017 | 07:32 AM
  #7  
tusabes's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Jan 2008
Posts: 6,150
Likes: 533
Mercedes
V12icpack.com
has a voltage transformer rental program to make sure that's what it is

you can either keep theirs if it works for you or send it back and buy new if you want new
Reply
Old Jan 21, 2017 | 10:54 PM
  #8  
DrDoe's Avatar
Super Member
 
Joined: Jun 2016
Posts: 589
Likes: 60
From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Don't think the issue is with the VT as it has been rebuilt. Wiring problems would caused the exact same errors.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

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

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Jan 22, 2017 | 03:41 AM
  #9  
AlexMercedes's Avatar
Senior Member
 
Joined: Aug 2014
Posts: 370
Likes: 31
S55 AMG
This is very interesting... half my engine decided to go out today... again... for the 5th time... and this time it seems to be symptoms of a voltage transformer issue. Half the engine went out randomly while driving under normal conditions.

My voltage transformer went out a little over a year ago, and I got it rebuilt/repaired instead of getting a new one. Looks like the plastic casing on the old part number for the voltage transformer 00 150 01 58 is prone to the heat of the engine since it sits directly on top of it, and causes it to go bad often. However, with the newer redesigned voltage transformer with the part number 000 150 02 58 the casing seems to be made out of heat-resistant material and should be more reliable.

I'll also keep this thread updated on my own random and disappointing trip down the misfiring memory lane again...
Reply

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


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 10:07 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