S63 AMG, S63 AMG 4Matic, S65 AMG (W222, V222) 2014 -2021

!!!HEADS UP!!! Those considering a RENNTech tune..

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Mar 15, 2017 | 10:28 PM
  #1  
mb techman's Avatar
Thread Starter
Super Member
10 Year Member
 
Joined: May 2011
Posts: 835
Likes: 9
CLA45
!!!HEADS UP!!! Those considering a RENNTech tune..

As of right now this is only for RENNtech. Im not sure if others are affected such as weistec or AMS or any other. We dont really deal with them at the shop.

Mercedes is beginning to put a status 8 on your VIN, meaning your warranty may and can be voided upon review.

I dont know how they know the car is tune, but we have had at least 4 cars (not just E63, but S600s and S63's) that turn up a status 8 on the VMI after the tune. So proceed with caution.
Reply
Old Mar 17, 2017 | 02:29 AM
  #2  
jenz's Avatar
Super Member
 
Joined: Jan 2007
Posts: 766
Likes: 47
S, GL
Originally Posted by mb techman
As of right now this is only for RENNtech. Im not sure if others are affected such as weistec or AMS or any other. We dont really deal with them at the shop.

Mercedes is beginning to put a status 8 on your VIN, meaning your warranty may and can be voided upon review.

I dont know how they know the car is tune, but we have had at least 4 cars (not just E63, but S600s and S63's) that turn up a status 8 on the VMI after the tune. So proceed with caution.
Are you a MB dealer that's listed on the renntech site? Maybe MB corporate is only doing it to cars tuned at non MB dealerships?
Reply
Old Mar 18, 2017 | 08:24 AM
  #3  
absent's Avatar
MBWorld Fanatic!
20 Year Member
Photogenic
Liked
Loved
 
Joined: Mar 2002
Posts: 2,934
Likes: 387
From: Kenilworth, il usa
GT63S ePerformance 4dr, '25 Bentayga Black Ed.(wife), Wrangler and 250 MLB(kids)
I've had 14 cars (since 2001 CLK55) tuned by Renntech and never had any problems.
I just made sure to service them always at the dealer who also performed the tune.
One exception was 2006 SL65 that received Status 8 after serious handling problems caused by frozen Kleemann differential (we had no idea it was the culprit and MBUSA technician was called in, unfortunately a newly hired dealer service advisor blabbed to him about the tune).
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 03:58 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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