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Shift to neutral at stoplight with AMG MCT?

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Old 02-01-2019, 02:34 PM
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Shift to neutral at stoplight with AMG MCT?
Looking for some definitive knowledge here: when stopped at a stop light, should I shift into neutral or stay in drive? I know there are passionate arguments for both sides, but is there a consensus for our cars? Any techs or mechanics out there that can provide a definitive answer and explanation for the Speedshift MCT?

Thanks in advance!
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Old 02-01-2019, 02:45 PM
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The definitive answer is leave it in drive, or apply brake hold.

The safety of being in drive while at a stoplight by far outweighs any anecdotal esoteric theoretical benefit to shifting into neutral.

drive your car and enjoy the hell out of it!
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Old 02-01-2019, 05:02 PM
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Originally Posted by PeterUbers
The definitive answer is leave it in drive, or apply brake hold.

The safety of being in drive while at a stoplight by far outweighs any anecdotal esoteric theoretical benefit to shifting into neutral.

drive your car and enjoy the hell out of it!
+100

Well said Peter
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Old 02-01-2019, 05:13 PM
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Originally Posted by Vrodman
+100

Well said Peter
cheers brutha
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Old 02-05-2019, 09:08 AM
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Car goes into neutral by itself when stopped anyway. That's why when the adaptations to the clutch pack is off, it jerks when it re-engages the moment you let off the brakes slightly.
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Old 02-06-2019, 02:59 AM
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I shift to neutral in all my Dual clutch cars at traffic lights. I do the same in My E63
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Old 02-06-2019, 03:13 PM
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Originally Posted by kponti
Car goes into neutral by itself when stopped anyway. That's why when the adaptations to the clutch pack is off, it jerks when it re-engages the moment you let off the brakes slightly.
Is this really true? Is the tranny smart enough to shift to neutral while remaining in D? wouldn't we feel that shift occur if it did?
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Old 02-06-2019, 07:58 PM
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
Originally Posted by V8Avant
Is this really true? Is the tranny smart enough to shift to neutral while remaining in D? wouldn't we feel that shift occur if it did?
it's the mct wet clutch .... disengaging ... then it re-engages when you lift off the brakes
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Old 02-06-2019, 08:24 PM
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Originally Posted by PeterUbers


it's the mct wet clutch .... disengaging ... then it re-engages when you lift off the brakes
This! End thread

Only thing to NO do is put the the trans in N while rolling as the manual states this can cause damage.. Otherwise, drive the car as designed.
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Old 02-07-2019, 09:36 AM
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Originally Posted by V8Avant
Is this really true? Is the tranny smart enough to shift to neutral while remaining in D? wouldn't we feel that shift occur if it did?
Yes it is true, but as Peter stated (and I oversimplified), it's not an actual neutral gear change, its disengages the clutch pack akin to pushing the clutch in on a manual trans

This is not limited to the MCT, a lot of regular ole auto trans do this nowadays. I felt my wife's old BMW doing the exact same thing after a software update some years back.
I would guess it's easier to hide the jerking on autos than MCTs and DCTs
Last edited by kponti; 02-07-2019 at 09:40 AM.
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