Rev hiccup/Mis-Fire?
Thread Starter
MBWorld Fanatic!
Joined: Jul 2014
Posts: 1,302
Likes: 25
From: Earth, USA, Atlanta, GA
E55
Rev hiccup/Mis-Fire?
I'm not 100% what this is but I can trigger it when putting it in neutral at a drive through. It runs 100% even after it gets the strange hiccup it's just not as loud as it usually is but full power is or seems to be available. No codes. The car usually gets a lumpy idle for a second, and then evens out. It has a custom dyno tune by SoloMotorsports (first and only tune by them, never had issues like this with BIP...but I was using a can performance tune from BIP). The car does not have the rev stumble in gear but it also doesn't have the supercharger "bark" like it normally does. A super quick restart will solve all
I have one-step colder plugs and it seems to only to this when it's cold out. I may of answered my own question but what does the MB gods say?
Hiccup/Stumble mode (engine warm, running for 30 minutes on the highway/city)
Shutting the engine off for 5 seconds and restarting. Back to normal...
FWIW: My mods are in my signature but I do NOT performance pulleys. Stock crank and stock SC pulley.
I have one-step colder plugs and it seems to only to this when it's cold out. I may of answered my own question but what does the MB gods say?
Hiccup/Stumble mode (engine warm, running for 30 minutes on the highway/city)
Shutting the engine off for 5 seconds and restarting. Back to normal...
FWIW: My mods are in my signature but I do NOT performance pulleys. Stock crank and stock SC pulley.
Last edited by 2000UZJ; Jan 2, 2016 at 07:02 AM.
Thread Starter
MBWorld Fanatic!
Joined: Jul 2014
Posts: 1,302
Likes: 25
From: Earth, USA, Atlanta, GA
E55
Thanks for the input.
Thread Starter
MBWorld Fanatic!
Joined: Jul 2014
Posts: 1,302
Likes: 25
From: Earth, USA, Atlanta, GA
E55
I had wires and plugs done at the same time but never coil packs. I don't know if these are the originals or not. Would a bad/failing coil pack throw a code? I'll double check the codes next time it happens
Senior Member
Joined: May 2008
Posts: 293
Likes: 20
From: Houston/Plano, TX
2005 E55, 2009 VW GLI
-OA
Trending Topics
Thread Starter
MBWorld Fanatic!
Joined: Jul 2014
Posts: 1,302
Likes: 25
From: Earth, USA, Atlanta, GA
E55
A bad coil pack will not always throw a code so long as one of the ports fire off. Do your RPMs drop a bit during shifts or when you begin to accelerate? If so, check the connections between the spark plug wires and the coil packs. The leads bend easily if you're not careful when connecting the wires and could be causing your issue.
-OA
-OA
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
