Missed shifts on M mode
Thread Starter
Super Member
Joined: May 2017
Posts: 900
Likes: 113
From: Toronto
2012 C63, 2014 E550
Missed shifts on M mode
Is this because I'm a terrible driver or sometimes the transmission actually doesn't upshift? This only occurs under WOT getting nearing the rev limit. If I don't shift early enough (say 6.5-7k) and "predict" it, then it just won't shift the first time and I hit the limiter around (7.5k?)for about a second before I try it again and it works.
Last edited by NotABaller; Jun 24, 2017 at 08:57 PM.
Thread Starter
Super Member
Joined: May 2017
Posts: 900
Likes: 113
From: Toronto
2012 C63, 2014 E550
Did a bunch of reading and tried the suggestions. Look like the solution is to put it into s+ and downshift to lowest gear it'll let me go. Then slam the pedal. Profit!!!
Senior Member
Joined: Jan 2013
Posts: 381
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From: Colorado
2014 Mercedes E63S AMG
Thread Starter
Super Member
Joined: May 2017
Posts: 900
Likes: 113
From: Toronto
2012 C63, 2014 E550
Oh wow. Totally did not know this as I was downshifting shifting 3-4 times to drop from highway cruising gear to second gear for pulls. This is life changing information (my expected lifespan just reduced one week) thank you so much!!!
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Senior Member
Joined: Feb 2015
Posts: 387
Likes: 41
From: Twin Cities
E63S AMG
Before my C63, I had an E9x M3 and the transmission on that car was PERFECT - you could literally run it all the way to redline and hit the paddle and it would shift instantly. With the C63, I exclusively use S+ mode when driving spirited and just downshift and upshift as needed. It really bugged me at first, but I've since gotten used to it. S+ adapts nicely to spirited driving - when the car realizes that you want to drive aggressively, it almost always keeps you in the right gear to maximize the TQ at any speed..
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Senior Member
Joined: Jul 2009
Posts: 373
Likes: 41
From: DFW Texas
C63 AMG Black Series
I've noticed if you press the upshift paddle as soon as the gauge cluster illuminates red and says "UP" you won't bounce off the rev limiter. If you're too slow at executing after it lights up red, then it won't be able to upshift in time. When the transmission upshifts itself in sport or sport plus it's very fast. The delay is only with the paddles. Boo. It won't be so bad when you get used to it. I came from E60 M5 which loved high revs and fast shifts at redline.
Thread Starter
Super Member
Joined: May 2017
Posts: 900
Likes: 113
From: Toronto
2012 C63, 2014 E550
Looking into the weistec tcu upgrade now. I've also noticed that the central display will turn all red and yell SHIFT SHIFT SHIFT pretty early in the rev range in first. Probably starting around 5.5k. So I guess I shouldn't ignore it and wait till 7k to shift.
The great part about all this is that we can just put it into S+ mode and not worry about missing shifts!!
The great part about all this is that we can just put it into S+ mode and not worry about missing shifts!!
Senior Member
Joined: Jul 2009
Posts: 373
Likes: 41
From: DFW Texas
C63 AMG Black Series
Looking into the weistec tcu upgrade now. I've also noticed that the central display will turn all red and yell SHIFT SHIFT SHIFT pretty early in the rev range in first. Probably starting around 5.5k. So I guess I shouldn't ignore it and wait till 7k to shift.
The great part about all this is that we can just put it into S+ mode and not worry about missing shifts!!
The great part about all this is that we can just put it into S+ mode and not worry about missing shifts!!
Senior Member
Joined: Aug 2014
Posts: 271
Likes: 39
From: SATX
'16 C63s
Remember that 1st will rev the fastest and each consecutive gear will rev a little slower. The computer calculates this and, since it knows how quick the MCT will react, it'll tell you precisely when to tap gear + so that shifts happen right at redline.
