335i DCT Launch Control

RagingKileak · 12-20-2012, 11:44 AM

Gents,

It's cold out and the roads are slippy. Surely no better time for using launch control to cause some insane snaking up the road then!!

I am struggling to use it though, I must admit. I understand the correct way is to do so is as follows:

Foot on brake
Take off handbrake
Switch to DTC (one click, not press and hold)
Switch to M/S and then click to M1
Press the Sport button

Next is confusing. Some people say just brake boost to the desired revs and away you go, but that never seems to cause the 'chequered flag' which signifies launch control is working to appear, although it is reasonably effective.

Others say you have to 'kick down' the gas pedal, which means the car will rev like mad before the pedal is fully depressed. That, I have not had the heart to try, plus, I can't forsee/control the outcome - will LC engage and drop the revs to a sensible amount and then I just let off the brake? Will it actually try to launch against the brake at the high revs caused by fully depressing the pedal?

Has anyone managed to reliably use LC and if so, how? The M car variant is different by the way and can be controlled by the cruise stick, but that doesn't work on the 335i sadly.

Thanks
Matt

A_P · 12-20-2012, 11:55 AM

I believe matt you need to deactivate the traction completely. Then activate s6. then push the stick forward so that the flag shows.

emre · 12-20-2012, 12:00 PM

You need to keep the accelerator pedal floored , LC will keep the revs at 5000rpm.
It will not go beyond 5000rpm.
Once you see the chequered flag you just let off the brake and keep it floored.

mowflow · 12-20-2012, 12:00 PM

My experience is that you floor the accelerator. the revs will restrict at the optimum level rather than bumping of the usual limiter.

Squintstream · 12-20-2012, 02:25 PM

If I remember correctly, I had to press the accelerator and then pull the paddle, or something like that after doing the previous steps (either way it didn't seem to follow the process detailed in the manual

).

I tried this in the summer and it caused significant snaking and quite a bit of wheelspin (can't have released the brake quick enough and let too many revs build up), so I would exercise caution in these conditions

zltm089 · 12-20-2012, 02:27 PM

launch control in this weather! wow!....some people hey....

RagingKileak · 12-20-2012, 02:57 PM

AP, you're deffo wrong about the TC in a 335i I'm afraid, though as you mention S6, that might be the case in an M car. I dunno. The 335i just has sport in or off, no settings for how severe.

Mowflow, I'll give your suggestion a try and brace for impact lol!!

Matt

dxb335d · 12-20-2012, 03:14 PM

5k is way too much for a decent launch. But good for show boating!

A_P · 12-20-2012, 04:01 PM

Yes it was from an E92 M3.

Yoro35i · 12-20-2012, 04:44 PM

Quote:

Originally Posted by zltm089

launch control in this weather! wow!....some people hey....

Kev don't u drive with drc and dsc off in this weather

your more crazy!!

zltm089 · 12-20-2012, 04:52 PM

Quote:

Originally Posted by Yoro35i

Kev don't u drive with drc and dsc off in this weather

your more crazy!!

yeah, i do...

but i don't launch or floor it....

even half throttle, the rear is all over the place!!!...

dxb335d · 12-20-2012, 05:47 PM

I had mine spinning like a monster in 2nd up a hill at 50-60mph. It was after spinning hard in 1st and it continued into 2nd. I was just flicking the arse out both ways for what felt like ages.. But only like 5 seconds or so..

scaryprowler · 12-20-2012, 07:38 PM

Left foot on brake
One touch of DSC (activate)
Select Sport
Activate manual mode and first gear
Floor accelerator past point of resistance, engine speed adjusts and chequered flag appears
Release brake, keeping accelerator down and it'll change up as long as you keep it past the point of resistance (kickdown)

Only can be performed once everything is up to temp and not in succession; it doesn't learn road surface conditions/grip.

rickyjones1209 · 12-21-2012, 02:49 PM

Does this work with a steptronic auto or just dct?

Bungle009 · 12-21-2012, 03:13 PM

Just DCT

RagingKileak · 12-21-2012, 03:21 PM

Quote:

Originally Posted by scaryprowler

Left foot on brake
One touch of DSC (activate)
Select Sport
Activate manual mode and first gear
Floor accelerator past point of resistance, engine speed adjusts and chequered flag appears
Release brake, keeping accelerator down and it'll change up as long as you keep it past the point of resistance (kickdown)

Only can be performed once everything is up to temp and not in succession; it doesn't learn road surface conditions/grip.

Thanks for confirming mate.

I guess I just need to give it a try!!

Matt

12-20-2012, 11:44 AM	#1
RagingKileak Brigadier General 75 Rep 4,637 Posts Drives: Modified Alpine White E92 335i Join Date: Jan 2009 Location: Yorkshire iTrader: (2)	335i DCT Launch Control Gents, It's cold out and the roads are slippy. Surely no better time for using launch control to cause some insane snaking up the road then!! I am struggling to use it though, I must admit. I understand the correct way is to do so is as follows: Foot on brake Take off handbrake Switch to DTC (one click, not press and hold) Switch to M/S and then click to M1 Press the Sport button Next is confusing. Some people say just brake boost to the desired revs and away you go, but that never seems to cause the 'chequered flag' which signifies launch control is working to appear, although it is reasonably effective. Others say you have to 'kick down' the gas pedal, which means the car will rev like mad before the pedal is fully depressed. That, I have not had the heart to try, plus, I can't forsee/control the outcome - will LC engage and drop the revs to a sensible amount and then I just let off the brake? Will it actually try to launch against the brake at the high revs caused by fully depressing the pedal? Has anyone managed to reliably use LC and if so, how? The M car variant is different by the way and can be controlled by the cruise stick, but that doesn't work on the 335i sadly. Thanks Matt
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12-20-2012, 11:55 AM	#2
A_P Lieutenant Colonel 20 Rep 1,698 Posts Drives: E46 M3 Join Date: Mar 2012 Location: South East iTrader: (0)	I believe matt you need to deactivate the traction completely. Then activate s6. then push the stick forward so that the flag shows.
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12-20-2012, 12:00 PM	#3
emre Private First Class 2 Rep 160 Posts Drives: E92 LCI 335i Join Date: May 2010 Location: Istanbul iTrader: (0)	You need to keep the accelerator pedal floored , LC will keep the revs at 5000rpm. It will not go beyond 5000rpm. Once you see the chequered flag you just let off the brake and keep it floored. __________________ '11 E92 BSM 335i / Saddle Brown Dakota Leather / M Sport / 19" 225M / DCT / Navi Pro / BMW Individual High End Audio System / Cobb Stage 2+ / AR Design Catted DP / ETS FMIC & Charge Pipe / K&N Drop In / BMW Performance Suspension / BMW Performance Diffuser / M3 Lip Spoiler
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12-20-2012, 12:00 PM	#4
mowflow Colonel 29 Rep 2,437 Posts Drives: F20 125d Join Date: Feb 2010 Location: Glasgow iTrader: (2)	My experience is that you floor the accelerator. the revs will restrict at the optimum level rather than bumping of the usual limiter.
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12-20-2012, 02:25 PM	#5
Squintstream Lieutenant 7 Rep 485 Posts Drives: 335i M Sport avec DCT (E92) Join Date: Jan 2011 Location: Derby iTrader: (12)	If I remember correctly, I had to press the accelerator and then pull the paddle, or something like that after doing the previous steps (either way it didn't seem to follow the process detailed in the manual ). I tried this in the summer and it caused significant snaking and quite a bit of wheelspin (can't have released the brake quick enough and let too many revs build up), so I would exercise caution in these conditions
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12-20-2012, 02:27 PM	#6
zltm089 Major General 91 Rep 7,464 Posts Drives: 335i SE Coupe Space Grey Join Date: Nov 2008 Location: LONDON iTrader: (0) Garage List 2006 BMW 335i [5.00]	launch control in this weather! wow!....some people hey.... __________________ Current Car: E92 335i SE Dream Cars: AMG SL65 Black,GallardoSuperleggera, GTR 2012, Agera R, F430 Scuderia, DBS, EVO X FQ400, Lexus LFA, F10 M5, M4, GT3 RS4.0, Ferrari 458, Ferrari F12, R8 V10 plus, Jaguar F Type V8, Lamborghini LP700-4 Aventador, Chevrolet Camaro ZL1, C63 AMG Coupe Black, Vanquish 2012, Laferrari, GT3 991, McLaren 650s.
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12-20-2012, 02:57 PM	#7
RagingKileak Brigadier General 75 Rep 4,637 Posts Drives: Modified Alpine White E92 335i Join Date: Jan 2009 Location: Yorkshire iTrader: (2)	AP, you're deffo wrong about the TC in a 335i I'm afraid, though as you mention S6, that might be the case in an M car. I dunno. The 335i just has sport in or off, no settings for how severe. Mowflow, I'll give your suggestion a try and brace for impact lol!! Matt
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12-20-2012, 03:14 PM	#8
dxb335d The Tarmac Terrorist 391 Rep 29,297 Posts Drives: E46 M3 CS Join Date: Mar 2007 Location: ''Fandango Towers'' iTrader: (3) Garage List 2010 Porsche 997.2 GT3 [4.75] 2003 BMW E46 M3 [3.00] 2007 BMW E92 335D [2.75]	5k is way too much for a decent launch. But good for show boating! __________________ 997.2 GT3
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12-20-2012, 04:01 PM	#9
A_P Lieutenant Colonel 20 Rep 1,698 Posts Drives: E46 M3 Join Date: Mar 2012 Location: South East iTrader: (0)	Yes it was from an E92 M3.
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12-20-2012, 05:47 PM	#12
dxb335d The Tarmac Terrorist 391 Rep 29,297 Posts Drives: E46 M3 CS Join Date: Mar 2007 Location: ''Fandango Towers'' iTrader: (3) Garage List 2010 Porsche 997.2 GT3 [4.75] 2003 BMW E46 M3 [3.00] 2007 BMW E92 335D [2.75]	I had mine spinning like a monster in 2nd up a hill at 50-60mph. It was after spinning hard in 1st and it continued into 2nd. I was just flicking the arse out both ways for what felt like ages.. But only like 5 seconds or so.. __________________ 997.2 GT3
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12-20-2012, 07:38 PM	#13
scaryprowler Private First Class 2 Rep 106 Posts Drives: E92 335i DCT Join Date: May 2011 Location: Berkshire, United Kingdom iTrader: (0)	Left foot on brake One touch of DSC (activate) Select Sport Activate manual mode and first gear Floor accelerator past point of resistance, engine speed adjusts and chequered flag appears Release brake, keeping accelerator down and it'll change up as long as you keep it past the point of resistance (kickdown) Only can be performed once everything is up to temp and not in succession; it doesn't learn road surface conditions/grip.
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12-21-2012, 02:49 PM	#14
rickyjones1209 First Lieutenant 7 Rep 342 Posts Drives: 2008 e92 335i Join Date: Jan 2012 Location: Cheshire iTrader: (1)	Does this work with a steptronic auto or just dct? __________________ Current - 08 e92 335i M Sport Previous - 02 Renault Laguna, 04 Seat Leon Cupra R, 03 Subaru Impreza WRX, 01 Renault Clio 172, 98 Peugeot 106 Rallye S2, 94 Peugeot 106 Rallye S1
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12-21-2012, 03:13 PM	#15
Bungle009 Lieutenant 5 Rep 579 Posts Drives: E92 M3 Join Date: Nov 2009 Location: Alton iTrader: (0)	Just DCT
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