DCT double shift

Doc Oc · 05-15-2016, 11:46 PM

Every once in awhile, always in S mode, my dct will shift twice with one paddle pull. Usually it happens on the 3-4 shift where it'll go to 4 then immediately to 5. Happens at least a couple times a week. Anyone else experience this?

Amirsm3 · 05-16-2016, 12:08 AM

Quote:

Originally Posted by Doc Oc

Every once in awhile, always in S mode, my dct will shift twice with one paddle pull. Usually it happens on the 3-4 shift where it'll go to 4 then immediately to 5. Happens at least a couple times a week. Anyone else experience this?

You could have a shift module going out inside the steering wheel.

TWiTCHY · 05-16-2016, 12:21 AM

Quote:

Originally Posted by Amirsm3

Quote:

Originally Posted by Doc Oc

Every once in awhile, always in S mode, my dct will shift twice with one paddle pull. Usually it happens on the 3-4 shift where it'll go to 4 then immediately to 5. Happens at least a couple times a week. Anyone else experience this?

You could have a shift module going out inside the steering wheel.

To confirm this, could he try shifting with the shifter rather than the paddles? OP, does this happen in D / automatic mode?

bo0st · 05-16-2016, 06:56 AM

fixed.

Doc Oc · 05-16-2016, 07:55 AM

Quote:

Originally Posted by TWiTCHY

To confirm this, could he try shifting with the shifter rather than the paddles? OP, does this happen in D / automatic mode?

Thanks for the responses!

It's never happened when using the shifter actually. I'll use it for awhile and see what happens. I've never driven it in D, but the wife does. She hasn't noticed anything odd but that doesn't mean much

bo0st · 05-16-2016, 08:09 AM

Quote:

Originally Posted by Doc Oc

Thanks for the responses!

It's never happened when using the shifter actually. I'll use it for awhile and see what happens. I've never driven it in D, but the wife does. She hasn't noticed anything odd but that doesn't mean much

Nextr time you have an open road would you try a WOT pull to see if your experiencing the same issues as me?

Doc Oc · 05-16-2016, 08:11 AM

It has never happened under load, sorry....

Does it ever happen to you cruising normally?

bo0st · 05-16-2016, 08:28 AM

Quote:

Originally Posted by Doc Oc

It has never happened under load, sorry....

Does it ever happen to you cruising normally?

Never, everything is fine til I try a WOT pull from a dead stop.

Doc Oc · 05-16-2016, 08:31 AM

Does it happen every time?

bo0st · 05-16-2016, 08:33 AM

Quote:

Originally Posted by Doc Oc

Does it happen every time?

80% of the time, enough to get me thinking about selling the car.

Patrón · 05-16-2016, 10:07 AM

Quote:

Originally Posted by bo0st

80% of the time, enough to get me thinking about selling the car.

it could be something really simple like mentioned above, you could also have someone recalibrate the dct computer. who ever sold you the dct tune, ask if they can help you. i'm hoping it's something related to a component in your steering wheel/dct paddle. good luck.

VictorH · 05-16-2016, 12:01 PM

My car has been doing this for a few months too.
1) Never does it in D mode (though I don't drive much in that mode).
2) Occurs only on the upshift, never on a down shift
3) Low throttle input, generally low speeds, never had it happen above 40 mph
4) Does not do it at the track. Was at VIR in March and no issues at all.
5) Not that frequent, perhaps 1 time out of 30-40 shifts and it's not really consistent

Seems to me perhaps a poor contact in the right hand paddle. Don't use the console shifter to know if it does it there or not.

Doc Oc · 05-16-2016, 12:22 PM

Quote:

Originally Posted by VictorH

My car has been doing this for a few months too.
1) Never does it in D mode (though I don't drive much in that mode).
2) Occurs only on the upshift, never on a down shift
3) Low throttle input, generally low speeds, never had it happen above 40 mph
4) Does not do it at the track. Was at VIR in March and no issues at all.
5) Not that frequent, perhaps 1 time out of 30-40 shifts and it's not really consistent

Seems to me perhaps a poor contact in the right hand paddle. Don't use the console shifter to know if it does it there or not.

That is exactly what's happening with mine...I first noticed it after I changed paddles, but that may be a coincidence.

Doc Oc · 05-16-2016, 12:31 PM

Quote:

Originally Posted by Patrón

it could be something really simple like mentioned above, you could also have someone recalibrate the dct computer. who ever sold you the dct tune, ask if they can help you. i'm hoping it's something related to a component in your steering wheel/dct paddle. good luck.

Does changing the shift settings matter? Have you changed your tranny fluid or know if it's been changed recently? If it was happening to me like that first thing I'd do is flush the tranny fluid and possibly replace the filters. It's a relatively easy job. Mine definitely feels like it's an electronic issue in the paddle or with the dct tune but only happening at WOT sounds more mechanical to me.

Amirsm3 · 05-17-2016, 04:00 PM

Quote:

Originally Posted by Doc Oc

That is exactly what's happening with mine...I first noticed it after I changed paddles, but that may be a coincidence.

Changing the paddles may not be a coincidence because those are directly related to this issue, lmao. Check your paddle install. Try the console shifter like mentioned above and report back.

jcolley · 05-17-2016, 08:40 PM

Not too familiar with the wheel and paddles for the E9x, but this is very common on the E6x with SMG. For those, the paddles are made of plastic and crack slightly so you lose the "detent" feel and it begins double and triple shifting.

Josefinoe · 05-18-2016, 11:27 AM

This happened to me after changing my paddles. It was a pain to fix. I think i disassembled the steering wheel at least 15 times that weekend while troubleshooting. At the end (I think, it worked properly after this time) it seems that the gue paste that is where the small ball bearing sits had moved to the connectors while I did the exchange. I took off everything including green circuit part, cleaned it well, with a q-tip and alcohol, put it back and voila, never had an issue after that.

Doc Oc · 05-18-2016, 01:43 PM

Good info, I'll check it out

05-15-2016, 11:46 PM	#1
Doc Oc Captain Fatbelly 1422 Rep 1,994 Posts Drives: C63 amg Join Date: May 2015 Location: Upyourbuttandtotheleft iTrader: (0)	DCT double shift Every once in awhile, always in S mode, my dct will shift twice with one paddle pull. Usually it happens on the 3-4 shift where it'll go to 4 then immediately to 5. Happens at least a couple times a week. Anyone else experience this? __________________ 2013 c63 Amg coupe p31, v7 tune, plm headers, armytrix downpipes, EflexFuel 2008 dct coupe, evolve engine/dct tune, ttp, ms intake, megan exhaust, cf ds. Sold.
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05-16-2016, 06:56 AM	#4
bo0st Private 15 Rep 66 Posts Drives: F10 M5 Join Date: Jun 2015 Location: Bay Area iTrader: (1)	fixed. Last edited by bo0st; 09-26-2016 at 03:19 PM..
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05-16-2016, 08:11 AM	#7
Doc Oc Captain Fatbelly 1422 Rep 1,994 Posts Drives: C63 amg Join Date: May 2015 Location: Upyourbuttandtotheleft iTrader: (0)	It has never happened under load, sorry.... Does it ever happen to you cruising normally? __________________ 2013 c63 Amg coupe p31, v7 tune, plm headers, armytrix downpipes, EflexFuel 2008 dct coupe, evolve engine/dct tune, ttp, ms intake, megan exhaust, cf ds. Sold.
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05-16-2016, 08:31 AM	#9
Doc Oc Captain Fatbelly 1422 Rep 1,994 Posts Drives: C63 amg Join Date: May 2015 Location: Upyourbuttandtotheleft iTrader: (0)	Does it happen every time? __________________ 2013 c63 Amg coupe p31, v7 tune, plm headers, armytrix downpipes, EflexFuel 2008 dct coupe, evolve engine/dct tune, ttp, ms intake, megan exhaust, cf ds. Sold.
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05-16-2016, 12:01 PM	#12
VictorH Major 433 Rep 1,286 Posts Drives: '09 M3 Join Date: Dec 2007 Location: SC iTrader: (4)	My car has been doing this for a few months too. 1) Never does it in D mode (though I don't drive much in that mode). 2) Occurs only on the upshift, never on a down shift 3) Low throttle input, generally low speeds, never had it happen above 40 mph 4) Does not do it at the track. Was at VIR in March and no issues at all. 5) Not that frequent, perhaps 1 time out of 30-40 shifts and it's not really consistent Seems to me perhaps a poor contact in the right hand paddle. Don't use the console shifter to know if it does it there or not.
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05-17-2016, 08:40 PM	#16
jcolley Lieutenant 378 Rep 413 Posts Drives: 328 Join Date: Jul 2007 Location: Maine iTrader: (1)	Not too familiar with the wheel and paddles for the E9x, but this is very common on the E6x with SMG. For those, the paddles are made of plastic and crack slightly so you lose the "detent" feel and it begins double and triple shifting.
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05-18-2016, 11:27 AM	#17
Josefinoe Enlisted Member 19 Rep 46 Posts Drives: e92 M3 Join Date: Sep 2014 Location: Lebanon iTrader: (0)	This happened to me after changing my paddles. It was a pain to fix. I think i disassembled the steering wheel at least 15 times that weekend while troubleshooting. At the end (I think, it worked properly after this time) it seems that the gue paste that is where the small ball bearing sits had moved to the connectors while I did the exchange. I took off everything including green circuit part, cleaned it well, with a q-tip and alcohol, put it back and voila, never had an issue after that.
	Appreciate 0 Quote

05-18-2016, 01:43 PM	#18
Doc Oc Captain Fatbelly 1422 Rep 1,994 Posts Drives: C63 amg Join Date: May 2015 Location: Upyourbuttandtotheleft iTrader: (0)	Good info, I'll check it out
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