05-19-2014, 05:06 PM | #1 |
Major
256
Rep 1,442
Posts |
Launch control - what have I done wrong??
On a lovely Sunday afternoon on my way back home from a weekend trip I decided to try a Launch control. Parked my car in a bay with the engine running, read the manual, went step by step and...........
something went wrong. I held my left foot on brake and then pressed acc to the bottom and to my surprise the car started running even with my foot on brake. So I released it immediately. I was so surprised, that I did not even see if the flag appeared on display. Transmission was on sport and driving mode was sport +. What have I done wrong?
__________________
Current: 2019 C63 AMG Selenite Grey
Previous: 2017 C43 AMG Coupe Polar White 2014 F30 335d Msport MG with ACS springs 2007 E92 335i BS ultimate drive |
05-19-2014, 05:30 PM | #3 |
Major
256
Rep 1,442
Posts |
handbook says - engage gearbox position S - and that was what I did.
__________________
Current: 2019 C63 AMG Selenite Grey
Previous: 2017 C43 AMG Coupe Polar White 2014 F30 335d Msport MG with ACS springs 2007 E92 335i BS ultimate drive |
Appreciate
0
|
05-19-2014, 05:32 PM | #4 |
Beemer Heaven
462
Rep 2,941
Posts
Drives: BMW M4 Competition
Join Date: Feb 2007
Location: Somerset UK
iTrader: (0)
Garage List 2018 BMW F82 M4 Comp [0.00]
2017 BMW F30 330d M ... [0.00] 2014 BMW F30 330d M ... [0.00] 2009 BMW E90 330d M ... [0.00] 2006 BMW E90 330d M ... [0.00] 2002 BMW E46 325i S ... [0.00] |
Did you turn the traction off?
__________________
Scott
2018 BMW M4 Competition 2019 Mini Countryman Cooper S : 2008 Mini Cooper |
Appreciate
0
|
05-19-2014, 05:52 PM | #5 |
Captain
31
Rep 633
Posts |
I tried LC for the first time yesterday. A long lay-by beside a national speed limit A road was my choice. Worked a treat - astonishing acceleration to 70mph (approx 6 seconds) with awesome traction and absolutely no wheel spin.
Anyway, here's a few tips to get LC working - 1) Engine needs to be warm (>75C should do it); 2) Stop car (handbrake off!) and enter Sport+ mode; 3) Put left foot hard on brake pedal (like emergency braking) and hold it down; 4) Push auto transmission lever to the left to enter sport/manual mode; 5) Push the accelerator pedal to the floor with right foot (chequered flag appears after a second on the right hand side of the black panel display); 6) Take left foot off the brake pedal whilst keeping right foot 'floored'; 7) Say hello to 60mph in less than 5 seconds! I suspect those who haven't managed to trigger LC haven't quite followed one or more of steps 1, 3 or 5 above.
__________________
335d collected from TRL on 4/3/14
|
Appreciate
0
|
05-19-2014, 07:15 PM | #6 |
Major
256
Rep 1,442
Posts |
it was on a long run so temperature was about 100C. I put my left foot on brake ...and I think it was maybe not hard enough. But I floored the accelerator pedal and the car started at the same time with my left foot on brake!!! It was on Sport + which turns the traction off. I will try with pushing brake pedal very hard again.
__________________
Current: 2019 C63 AMG Selenite Grey
Previous: 2017 C43 AMG Coupe Polar White 2014 F30 335d Msport MG with ACS springs 2007 E92 335i BS ultimate drive |
Appreciate
0
|
05-20-2014, 02:52 AM | #8 |
General
6732
Rep 20,651
Posts |
|
Appreciate
0
|
05-20-2014, 03:47 AM | #11 | |
Major
118
Rep 1,002
Posts |
Quote:
|
|
Appreciate
0
|
05-20-2014, 03:47 AM | #12 |
Brigadier General
2810
Rep 4,934
Posts
Drives: 340i MPPSK
Join Date: Jun 2012
Location: Sussex, N.Yorks, UK
|
Yep, I have Sport Auto but my MY12 doesn't have LC (not that I ever think I'd need it)
__________________
Life is a state of mind |
Appreciate
0
|
05-20-2014, 06:50 AM | #13 | |
Major
176
Rep 1,470
Posts |
Quote:
Daft question, but do you have to shift gears yourself? |
|
Appreciate
0
|
05-20-2014, 08:28 AM | #14 |
Captain
31
Rep 633
Posts |
No, the box shifts automatically and rather quickly!
__________________
335d collected from TRL on 4/3/14
|
Appreciate
0
|
05-20-2014, 01:37 PM | #16 | |
Brigadier General
1752
Rep 3,482
Posts |
Quote:
A skilled enough driver can achieve the same result without using it. I've used it three times in the 7 months I have had my car. The first time was just to try it out. The second time was shortly after the first time because after looking so forward to using it, once I'd actually done it all I could think was "is that it?" So just to make sure I had to do another one. The third time was just recently to show someone what a load of overhype it actually is. Unless you are using LC in something over 400bhp it's a bit pointless. Have used it in two different F10 M5s and in about half a dozen E60 and E63 M's. They are cars where LC actually makes a difference and you can feel the benefits of it. In our cars I think BMW have used it as a marketing tool. It's there for the sake of being there. |
|
Appreciate
0
|
05-20-2014, 02:05 PM | #20 | |
Captain
31
Rep 633
Posts |
Quote:
__________________
335d collected from TRL on 4/3/14
|
|
Appreciate
0
|
05-20-2014, 02:28 PM | #21 |
Major
158
Rep 1,136
Posts |
not sure, maybe only 335i models.
__________________
sent from bimmerpost Android app
|
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|