renntech experience
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2015 ML63
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'12 E63 Wagon
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2015 ML63
No,,, I wish!!!! The tune was 3k and change on the original Ecu that car came with and then i got a separate brand new Ecu which had to be programmed with the original stock tune and that cost additional 2k.
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'18 GLE63S AMG /'19 PORSCHE TURBO S / '09 CORVETTE ZR1 /'14 LEXUS RX350/'16 RAV4 Ltd
No there's nothing there.If they did it's darn good
Last edited by Nanook; Feb 2, 2014 at 11:12 AM.
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'12 E63 Wagon
I was pulling out the CC and thinking "warranty be damned, who is this dealer?!?!"
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2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Nice makeup on that ECU---- its stupid NOT to drill as flexing the board is far more risky. The drill occurs right where the programming occurs and the cover up is basically impossible to locate via the human eye. I have seen it with others and then lined up two ecus (one drilled and one not) and its impossible to find if the cover up is done well.
Id much rather have mine drilled than flexed out....
Id much rather have mine drilled than flexed out....
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From: Alberta, Canada
'18 GLE63S AMG /'19 PORSCHE TURBO S / '09 CORVETTE ZR1 /'14 LEXUS RX350/'16 RAV4 Ltd
Please elaborate..flexing / drilling ? why ? Is there a physical procedure involved to complete the tune ? I suspect so or it cannot be completed electronically through the connection port ? I suspect not otherwise the tune could be completed in the vehicle....so what exactly is performed...just curious
Last edited by Nanook; Feb 2, 2014 at 01:04 PM.
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Porsche 911 Turbo S 2014! E63S 14, Audi S8 13, CLS63 12, E550 12, C63 09, all tuned
Ok,
This why they are drilled.
Instead of cracking open the whole box they drill a access hole for a button/ switch on ECU board to be depressed.
This why they are drilled.
Instead of cracking open the whole box they drill a access hole for a button/ switch on ECU board to be depressed.
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From: Alberta, Canada
'18 GLE63S AMG /'19 PORSCHE TURBO S / '09 CORVETTE ZR1 /'14 LEXUS RX350/'16 RAV4 Ltd
Interesting...thanks for this. So the button switch is already there and they are just accessing it ?. If indeed they did drill mine they concealed it very well..although I was not looking for it specifically I did not pick up on it..
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Authorized Renntech Dealer Necessary?
Please help me understand something: I am unclear on whether or not it is necessary, or best, to go to a Renntech "authorized dealer" to get a Renntech ECU installed. It sounds like replacing the ECU is pretty much a "plug and play" operation, so can any capable Mercedes shop do this upgrade?
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From: Alberta, Canada
'18 GLE63S AMG /'19 PORSCHE TURBO S / '09 CORVETTE ZR1 /'14 LEXUS RX350/'16 RAV4 Ltd
It is a simple task task to remove...send to RT and re-install..but if you think your dealer may offer warranty based on them selling you the tune and if their take is reasonable then why not buy it through them...but yes is is easy to do yourself..5 mins
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2016 AMG GTS Edition 1 Renntech
Please help me understand something: I am unclear on whether or not it is necessary, or best, to go to a Renntech "authorized dealer" to get a Renntech ECU installed. It sounds like replacing the ECU is pretty much a "plug and play" operation, so can any capable Mercedes shop do this upgrade?
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Please elaborate..flexing / drilling ? why ? Is there a physical procedure involved to complete the tune ? I suspect so or it cannot be completed electronically through the connection port ? I suspect not otherwise the tune could be completed in the vehicle....so what exactly is performed...just curious
The ECU is basically a myriad of chips on the board glued to the outer shell. The early adopters had their ECU's tuned via the removal of the glue from the board. This would yield a naked board (I had my CLS63TT in Nov 2011 done this way) but it was very hard to remove the glue and I "heard" that several tuners flexed the board due to force causing the electronics to fail (chips). This renedered the car dead. Subsequently the tuners found where they need to update the ECU and just drilled the hole; no glue removal or board flex or chance of frying the board.
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The reason I would do this instead of going to an "authorized Renntech Dealer", is that the closest authorized Renntech Dealer is about an hour away from me. Also, it seems that the closest Renntech Dealer to me is more of a wheel/tire installer, not expert MB mechanic. If there are problems with the ECU that need fixing (like a plug swap), I would think my local independent Mercedes repair shop would be better equipped to do it.
So I guess I am asking did you Renntech ECU purchasers go thru one of the authorized Renntech dealers, or thru an independent repair shop, or through a Mercedes dealer? Thx!
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2015 ML63
Sorry, but I did not post my question clearly. I was not saying my local MB dealer would install a Renntech ECU. I was thinking of taking the car to a nearby independent repair shop that specializes in Mercedes. The reason I would do this instead of going to an "authorized Renntech Dealer", is that the closest authorized Renntech Dealer is about an hour away from me. Also, it seems that the closest Renntech Dealer to me is more of a wheel/tire installer, not expert MB mechanic. If there are problems with the ECU that need fixing (like a plug swap), I would think my local independent Mercedes repair shop would be better equipped to do it. So I guess I am asking did you Renntech ECU purchasers go thru one of the authorized Renntech dealers, or thru an independent repair shop, or through a Mercedes dealer? Thx!
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2015 ML63
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2021 GLS63
