C219 CLS55 and CLS63, 2004-2010

Renntech ECU / Sprint booster or not?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Mar 31, 2012 | 05:12 PM
  #1  
maxwerks's Avatar
Thread Starter
MBWorld Fanatic!
15 Year Member
 
Joined: Aug 2007
Posts: 1,197
Likes: 5
From: Miami, FL
06 CLS55 Renntech stage 5, 04 CL600 ( will miss ),02e55 , 11 R350
Renntech ECU / Sprint booster or not?

On CLS55 Renntech obviously the ECU was tuned by Renntech , would one still benefit from a Sprint booster or would it clash with the tuned ECU ? I remember the Sprint booster was the best bang for the buck I ever used on the N/A M113
Reply
Old Mar 31, 2012 | 05:44 PM
  #2  
503C43 ////AMG's Avatar
MBWorld Fanatic!
15 Year Member
 
Joined: Apr 2010
Posts: 4,437
Likes: 43
From: PDX
1999 C43, 2008 P30 E63, 2014 SQ5, 2024 Model Y Performance
Sorry, not trying to thread jack but after reading your post I have to ask. What do you mean by it being the best bang for the buck on a N/A M113 motor?

I have been debating on buying a sprint booster but have read many comments from people calling it "snake oil".
Reply
Old Mar 31, 2012 | 05:55 PM
  #3  
maxwerks's Avatar
Thread Starter
MBWorld Fanatic!
15 Year Member
 
Joined: Aug 2007
Posts: 1,197
Likes: 5
From: Miami, FL
06 CLS55 Renntech stage 5, 04 CL600 ( will miss ),02e55 , 11 R350
No hijack at all ..I would do some reading on it on the W210 E55 forum .. it simply adjusts the throttle response making it far more responsive .. the one on my E55 is the older model which only had one setting , the current ones have a model where it has three different settings , which you can adjust ..
I personally LOVED it on that engine , way before I started adding bunch of mods to it ..
Reply
Old Mar 31, 2012 | 09:38 PM
  #4  
cmusngi's Avatar
Senior Member
 
Joined: Jun 2010
Posts: 273
Likes: 1
From: Spring/Houston, TX
CLS 55 AMG, FX45, F-350, Top Secret Widebody Supra (Sold) and other vehicles on another Planet
Max, did your Renntech set up come with a TCU tune? Congrats on the ride btw!


.
Reply
Old Apr 1, 2012 | 08:39 AM
  #5  
maxwerks's Avatar
Thread Starter
MBWorld Fanatic!
15 Year Member
 
Joined: Aug 2007
Posts: 1,197
Likes: 5
From: Miami, FL
06 CLS55 Renntech stage 5, 04 CL600 ( will miss ),02e55 , 11 R350
Originally Posted by cmusngi
Max, did your Renntech set up come with a TCU tune? Congrats on the ride btw!


.

Thank you for the kind words, yes it came with it plus.. when I called Bob Brady at Renntech before I bought the car , his words were " That car has everything we offer for the CLS " , car came with the ECU / TCU pulley, Renntech throttle body, ELM , Carbon fiber airboxes, long tube headers, renntech full exhaust mufflers, rear carbon fiber diffuser, Renntech front brakes( 16" rotors ) and rear brakes , last are the 20" renntech 3pc wheels !! those are the only item that will have to change only because chrome is not my first choice ! top it off I Bought the CLS at 34K miles
Reply
Old Apr 4, 2012 | 05:38 PM
  #6  
cmusngi's Avatar
Senior Member
 
Joined: Jun 2010
Posts: 273
Likes: 1
From: Spring/Houston, TX
CLS 55 AMG, FX45, F-350, Top Secret Widebody Supra (Sold) and other vehicles on another Planet
Originally Posted by maxwerks
Thank you for the kind words, yes it came with it plus.. when I called Bob Brady at Renntech before I bought the car , his words were " That car has everything we offer for the CLS " , car came with the ECU / TCU pulley, Renntech throttle body, ELM , Carbon fiber airboxes, long tube headers, renntech full exhaust mufflers, rear carbon fiber diffuser, Renntech front brakes( 16" rotors ) and rear brakes , last are the 20" renntech 3pc wheels !! those are the only item that will have to change only because chrome is not my first choice ! top it off I Bought the CLS at 34K miles
I wouldn't mess with Sprintboost since you already have the Renntech tune. If your issue is that you wanted more response throttle wise, you should call Renntech to see if they can do a custom tune on the dyno for you to give it a more recent ECU flash. I'm willing to bet that their stage 5 package tune is a standard plug and play tune they use for that set up. Call them and see what they can do as far as fine tuning. Hope this helps.
Reply
Old Apr 8, 2012 | 11:54 AM
  #7  
maxwerks's Avatar
Thread Starter
MBWorld Fanatic!
15 Year Member
 
Joined: Aug 2007
Posts: 1,197
Likes: 5
From: Miami, FL
06 CLS55 Renntech stage 5, 04 CL600 ( will miss ),02e55 , 11 R350
Thank you most probably you are right .. I would assume that the throttle response would be part of their ECU tune .....I havent yet taken the car to Renntech .. I just havent had the time , but I a m planning to .. it would be best for them to go through the entire car and give me report . Thanks again, Max
Reply

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


You have already rated this thread Rating: Thread Rating: 1 votes, 5.00 average.


All times are GMT -4. The time now is 12:28 AM.

story-0
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-1
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-2
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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