2012+ E550 Performance upgrades
07-17-2014, 08:50 PM
#26
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2014 E550 Sedan
I have a 2014 E550 4matic and I am also interested in doing the ECU upgrade from Rentech, however I have a few concerns. I am concerned about the transmission and the 4 matic system. Does anyone have the upgrade for any length of time? Has anyone experienced any long term problem? I don't want to shorten the life of my trans or damage the 4matic system. I am worried that the drive-train can't handle the increased power. Lastly, my last question is how does the car drive day to day as a daily driver.
07-18-2014, 03:50 AM
#27
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
I have a 2014 E550 4matic and I am also interested in doing the ECU upgrade from Rentech, however I have a few concerns. I am concerned about the transmission and the 4 matic system. Does anyone have the upgrade for any length of time? Has anyone experienced any long term problem? I don't want to shorten the life of my trans or damage the 4matic system. I am worried that the drive-train can't handle the increased power. Lastly, my last question is how does the car drive day to day as a daily driver.
07-18-2014, 06:26 AM
#28
Super Member
No kidding - if I knew that a Renntech flash would not impact my warranty I would have done it already. As is the E550 is pretty awesome - a flash would turn it into a true monster - call it an AMG-lite!
07-18-2014, 09:28 AM
#29
MBWorld Fanatic!
And it would probably end up being faster than any of the NA E63 AMGs. Wouldn't want to line up against a TT 5.5 AMG though...
07-19-2014, 06:46 PM
#30
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2014 E550 Sedan
I was wondering if anyone had any information on how the Ren tech ECU upgrade affects the transmission long-term? I am interested in buying this upgrade for my car but I was concerned about longevity of the vehicle. I have a 2014 E550 sedan 4Matic. Any advice would be appreciated.
09-29-2014, 11:22 AM
#31
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2011 E350 w212
Thats crazy, i just purchased a 2014 E550 Coupe, did the resonator delete with straight pipes and ran a best of 12.48 @ 112.38. i want the tune done but im not sure if there is any difference between the 2012 and the 2014 or is it that your is a sedan?
09-30-2014, 09:45 PM
#32
Super Member
I think the difference might be due to weight. E550 4matic is a heavy ride.
