Car starts to missfire at 5200 RPMs
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Newbie
Joined: Jun 2013
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Car starts to missfire at 5200 RPMs
It started to happen today when I accelerate hard car takes off like a rocket but when it hits 5200 RPMs it starts to perform as if I've hit the rev limiter. As if the spark plugs are missing. Could it be water in the gas?
What fuel would you recommend for my 2015 S63 Coupe AMG RennTech upgrade
What fuel would you recommend for my 2015 S63 Coupe AMG RennTech upgrade
Super Member
Joined: Dec 2005
Posts: 785
Likes: 113
From: Scottsdale, Arizona
2020 S63 Coupe, 2006 Hummer H1 Alpha, 2018 McLaren 720S, 2022 Porsche 911 TurboS, 2022 Tesla Model X
It started to happen today when I accelerate hard car takes off like a rocket but when it hits 5200 RPMs it starts to perform as if I've hit the rev limiter. As if the spark plugs are missing. Could it be water in the gas?
What fuel would you recommend for my 2015 S63 Coupe AMG RennTech upgrade
What fuel would you recommend for my 2015 S63 Coupe AMG RennTech upgrade
If it has a Renntech tune I'd have that checked first - restore the stock ECU program and see if the problem persists. If it does, take it to the dealership for diagnosis. If it is resolved, then there is an issue with the tune that Renntech should resolve.
I'd suggest checking this out ASAP, if you have a problem with the tune or spark plugs and the engine incurs damage, M-B will probably not cover it under warranty because the ECU has been modified.
Newbie
Joined: Jul 2017
Posts: 9
Likes: 1
2017 S63
S63 Gearbox problems
Hello
I bought my 2017 S63 2 months ago. After 2 weeks the Gears started to go crazy, sometimes the car starts perfectly and sometimes it goes to 3,000 rpms before moving an inch! I took it to the dealer ship and they kept it for two weeks. They said it was a problem with the gear box but now was fixed.
After two weeks everything was perfect but I notice that if I start very slowly the car seems to be like in clutch and slowly goes in to gear?
If I go full throttle you don't feel it, but driving smooth or slow it seems to take a few seconds to really engage in the first gear.
This is my first AMG, is this normal?
I bought my 2017 S63 2 months ago. After 2 weeks the Gears started to go crazy, sometimes the car starts perfectly and sometimes it goes to 3,000 rpms before moving an inch! I took it to the dealer ship and they kept it for two weeks. They said it was a problem with the gear box but now was fixed.
After two weeks everything was perfect but I notice that if I start very slowly the car seems to be like in clutch and slowly goes in to gear?
If I go full throttle you don't feel it, but driving smooth or slow it seems to take a few seconds to really engage in the first gear.
This is my first AMG, is this normal?
Senior Member
Joined: Nov 2016
Posts: 454
Likes: 117
S63 AMG Cabrio
Hello
I bought my 2017 S63 2 months ago. After 2 weeks the Gears started to go crazy, sometimes the car starts perfectly and sometimes it goes to 3,000 rpms before moving an inch! I took it to the dealer ship and they kept it for two weeks. They said it was a problem with the gear box but now was fixed.
After two weeks everything was perfect but I notice that if I start very slowly the car seems to be like in clutch and slowly goes in to gear?
If I go full throttle you don't feel it, but driving smooth or slow it seems to take a few seconds to really engage in the first gear.
This is my first AMG, is this normal?
I bought my 2017 S63 2 months ago. After 2 weeks the Gears started to go crazy, sometimes the car starts perfectly and sometimes it goes to 3,000 rpms before moving an inch! I took it to the dealer ship and they kept it for two weeks. They said it was a problem with the gear box but now was fixed.
After two weeks everything was perfect but I notice that if I start very slowly the car seems to be like in clutch and slowly goes in to gear?
If I go full throttle you don't feel it, but driving smooth or slow it seems to take a few seconds to really engage in the first gear.
This is my first AMG, is this normal?
Last edited by HAWKiS63; Aug 7, 2017 at 02:39 PM.
