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2019+ G63 RENNtech tune

Old Mar 16, 2020 | 11:35 PM
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2020 G63 Magno Black/2019 Range Rover Sport V8 Supercharged
2019+ G63 RENNtech tune

Hi guys. So I’m thinking to buy this tune:

https://autotalent.com/products/renn...AaAsCJEALw_wcB

has anyone else done this tune to there 2019+ g63? Thanks in advance!
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Old Mar 17, 2020 | 11:02 AM
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I've heard nothing but good things about Renntech tunes. I plan on getting it once my break-in period is over.
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Old Mar 17, 2020 | 04:04 PM
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Originally Posted by CClement
I've heard nothing but good things about Renntech tunes. I plan on getting it once my break-in period is over.
We will hook you up when ready! Congrats on the recent purchase!
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Old Mar 17, 2020 | 05:19 PM
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mercedes g63
?

Originally Posted by AutoTalent
We will hook you up when ready! Congrats on the recent purchase!
Does the upgrade include removal or increasing top speed limiter...and are the transmission shift points altered ?

Cheers
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Old Mar 17, 2020 | 05:41 PM
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Originally Posted by CDHG63
Does the upgrade include removal or increasing top speed limiter...and are the transmission shift points altered ?

Cheers
Top speed is raised to 190 MPH and no the shift points are not altered.
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Old Mar 17, 2020 | 09:19 PM
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mercedes g63
Originally Posted by AutoTalent
Top speed is raised to 190 MPH and no the shift points are not altered.
190mph in a g wagon——not quite a bucket list item....lol... Thanks for the information —-Cheers
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Old Mar 17, 2020 | 10:34 PM
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Originally Posted by CDHG63
190mph in a g wagon——not quite a bucket list item....lol... Thanks for the information —-Cheers
Not even if going downhill with a tailwind, with the engine off! But when I get my G550 I will be interested in this as well.
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Old Mar 17, 2020 | 11:35 PM
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Originally Posted by AutoTalent
We will hook you up when ready! Congrats on the recent purchase!
warranty voided?
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Old Mar 18, 2020 | 12:04 AM
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There are Mercedes dealer's that are also Renntech dealers - so there have not been any hassles between Mercedes and Renntech.

The Renntech HHT let's you switch back Factory Tune in 3minutes - as added "insurance" for dealer service you switch back to factory before you take your "G" in.
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Old Mar 18, 2020 | 08:48 AM
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'27 EQG deposit, '22 F8 Spyder, '20 Fat Boy
Originally Posted by Festertester
warranty voided?
If you damage your drivetrain as a result of a tune yes, the warranty for affected components would be voided.
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Old Mar 20, 2020 | 05:43 PM
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I put this on my 2019 G 550 and I can't really tell the difference....that being said, my buddy put it on his 2019 G63 and he says his fuel mileage went up about 1.5 MPG.
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Old Mar 22, 2020 | 04:17 AM
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"If you damage your drivetrain as a result of a tune yes, the warranty for affected components would be voided" - well Bob, under Federal Warranty law's you are 100% incorrect.

If you "fried" your ECU with improper "bootleg/hacked" tuning - then the replacement ECU - then that replacement ECU would not be covered under Mercedes warranty.

With Renntech - if that were to happen (which to my knowledge it never has) - then Renntech would cover that ECU replacement (which they never have had to do to my knowledge) - your could check with George Leca at RennTech to confirm.
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Old Mar 22, 2020 | 08:52 AM
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If this tune is backed by MB then I will admit I am incorrect, but one should ask the questions and read the fine print and not rely on me or anyone else on a forum. Most "tunes" though are not and for example many Porsche dealers install GAIC tunes these days; however, Porsche NA makes the final call on warranties, not the dealers. I had a Porsche dealer Service Manager tell me just that, which is why I went with a Cobb tune on mine - if I am going to play I am willing to pay.
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Old Mar 22, 2020 | 09:17 AM
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'27 EQG deposit, '22 F8 Spyder, '20 Fat Boy
Even though I just said to not rely on what people say on forums this is an interesting read about Renntech tunes and warranty: https://mbworld.org/forums/w212-amg/...tech-tune.html
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Old Mar 24, 2020 | 08:15 PM
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Just like that post in 2017 - "much-to-do-about-nothing" - on that whole thread there was one guy going on-and-on about there "might" be a warranty problem with a tune - IF you don't tell your dealer that you have a tune ON SERVICE CHECK IN - and thru all the "opinions" back and forth - another member clearly posted he has "never had a warranty problem" because he tells his service dept on checkin.

The tech back then was to pull the sealed ECU box - send it to a tuner - then the tuner has to drill a small hole in the casing to release/split the case - then tune - put in back together ... that was that deal... and starting "around" 2017 - if your MB was hooked up to NetStar at that time - your tune would register a "flag" for it's VMI.

Again there has been no known report that I personally known of on any warranty issues on a Renntech tuned Mercedes.

Now - with the Renntech HHT tuner that has been discussed here - you don't even have to worry if your MB dealer is a Dead-Head - because BEFORE SERVICE CHECK IN you can take 3 min to restore that factory tune - and that's/that.
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