|
|
02-09-2013, 07:44 PM | #1 |
Ultimate Driver for the Ultimate Driving Machine
146
Rep 1,146
Posts |
Weird thing happened to me today
I came out of the highway at 60mph to a full stop on a hill before merging on to local traffic. Afterwards i tried to continue driving but the car wouldnt move. I checked the dash and it said D7 (E92 DCT) which surprised me because the car was stationary and it should have shifted to D1 automatically. anyway, after giving a little push to the gas the car then shifted to 2nd and started moving.
Does this indicate a problem with my transmission? Did anyone experienced a similar problem too? Thanks
__________________
BMW M3 E92 - Silverstone II BPM Sport Stage II Tune + Test Pipes, GTS DCT Tune |
02-09-2013, 08:05 PM | #2 |
OIF Veteran
246
Rep 2,106
Posts |
Where you in "D" (auto mode)? If so, were you in D1?
In my SMG equipped M5, I have this issue sometimes where the car gets confused. In D1, the car will start in 2nd gear, but sometimes it's in first and has to up shift to 2nd.
__________________
Retired: '06 BMW E46 ///M3
Current: '08 BMW E60 DINAN ///M5, Interlagos Blue, SMG DINAN Stage 2 Suspension, Exhaust, Stage III Software, Front strut braces, Intakes, 13% Underdrive pulley, 3.91 Differential, RPI Scoops. |
Appreciate
0
|
02-09-2013, 08:30 PM | #3 |
Ultimate Driver for the Ultimate Driving Machine
146
Rep 1,146
Posts |
so when i pressed the gas it felt like as if the car was in neutral. but at around 600-700 rpm it moved forward maybe like 1 mph, then i looked at the dashboard it was sayying D7. Then i hit the brakes (scared it would go backwards since i was on a hill) then gave a bit harder push on the gas, it shifted to 2nd and kept moving normal.
__________________
BMW M3 E92 - Silverstone II BPM Sport Stage II Tune + Test Pipes, GTS DCT Tune |
Appreciate
0
|
02-09-2013, 08:40 PM | #4 | |
OIF Veteran
246
Rep 2,106
Posts |
Quote:
__________________
Retired: '06 BMW E46 ///M3
Current: '08 BMW E60 DINAN ///M5, Interlagos Blue, SMG DINAN Stage 2 Suspension, Exhaust, Stage III Software, Front strut braces, Intakes, 13% Underdrive pulley, 3.91 Differential, RPI Scoops. |
|
Appreciate
0
|
02-09-2013, 10:22 PM | #6 |
BimmerPost Supporting Vendor
3387
Rep 7,542
Posts |
If you're not having any issues now I wouldn't worry about it, probably a DCT glitch. If you lost gears 1,3 and 5 there is definitely an issue - but you should receive a transmission malfunction error. (1, 3 and 5 are on one clutch and 2, 4, 6 and R are on the other one).
__________________
-----| Like us on Facebook | Instagram || Tuning Information | Remote Coding |----- ----Visit us at www.BPMSport.com - Emotion. Driven. | Toll Free: (888) 557-5133---- |
Appreciate
0
|
02-09-2013, 11:06 PM | #7 |
Major
354
Rep 1,405
Posts |
Seventh gear at a dead stop is not supposed to happen. And it never has to me. I would call a service guy and talk it over with him.
Are you positive you saw a "7" and not a "2"? The reason I ask is because you said the car eventually started off in second gear. That can happen if you have selected that performance option. (I refer you to the manual, but, believe that would be one vertical bar). When you select this option, the car comes to a stop in second gear (showing 2D on the dash) not first gear and, of course, you start off in second. From my experience with this condition, the take off in second is surprisingly very slow and requires quite a shove on the gas pedal. And that's on flat ground. On a hill such as the one you were on, I can see where starting off in second could be an alarmingly sluggish process. |
Appreciate
0
|
02-09-2013, 11:12 PM | #8 | |
OIF Veteran
246
Rep 2,106
Posts |
Quote:
you explained it better than I did. I have the same issue with SMG when in D1, where the car starts in 2nd gear.
__________________
Retired: '06 BMW E46 ///M3
Current: '08 BMW E60 DINAN ///M5, Interlagos Blue, SMG DINAN Stage 2 Suspension, Exhaust, Stage III Software, Front strut braces, Intakes, 13% Underdrive pulley, 3.91 Differential, RPI Scoops. |
|
Appreciate
0
|
02-09-2013, 11:13 PM | #9 |
that's what SHE said!
75
Rep 1,163
Posts |
It only shows the number when you're in manual (S) mode. D7 is D mode, 7th gear, which as mentioned, should never happen when stopped. I think what you're asking is, what drivelogic setting he was in, which, he hasn't mentioned yet. DCT will start off in 2nd gear in drivelogic mode 1, and 1st gear in all other modes.
__________________
|
Appreciate
0
|
02-09-2013, 11:27 PM | #10 | |
OIF Veteran
246
Rep 2,106
Posts |
Quote:
__________________
Retired: '06 BMW E46 ///M3
Current: '08 BMW E60 DINAN ///M5, Interlagos Blue, SMG DINAN Stage 2 Suspension, Exhaust, Stage III Software, Front strut braces, Intakes, 13% Underdrive pulley, 3.91 Differential, RPI Scoops. |
|
Appreciate
0
|
02-10-2013, 10:15 AM | #12 |
Ultimate Driver for the Ultimate Driving Machine
146
Rep 1,146
Posts |
to clear the confusion, the car was in automatic mode (not manual) and drivelogic was in 3rd bar.
I am sure it said D7. I did use D2 to move from stand still before. it felt nothing like it.
__________________
BMW M3 E92 - Silverstone II BPM Sport Stage II Tune + Test Pipes, GTS DCT Tune |
Appreciate
0
|
02-10-2013, 10:27 AM | #13 |
Private First Class
13
Rep 137
Posts |
I test drove a 2013 with DCT recently and found that it had strange behavior at low speeds and starting on a slight incline. It felt like I was driving a manual transmission car but someone else was controlling the clutch and trying to guess what I was doing. Which, I suppose, is exactly what the DCT actually does.
|
Appreciate
0
|
02-10-2013, 01:01 PM | #14 |
Second Lieutenant
85
Rep 280
Posts |
I rarely drive in D mode and in manual mode it will usually drop down appropriately but I've had a few instances where it doesn't drop to second when it should and I have to manually downshift.
In D it seems to manage itself better when downshifting in everyday traffic. Last edited by 1fastdoc; 02-10-2013 at 01:59 PM.. |
Appreciate
0
|
02-10-2013, 09:40 PM | #15 |
Ultimate Driver for the Ultimate Driving Machine
146
Rep 1,146
Posts |
happened again tonight, went back again to the same area trying to duplicate it so that i can record it, it didnt happen. what the fuck is wrong with my transmission.
I am going crazy over here
__________________
BMW M3 E92 - Silverstone II BPM Sport Stage II Tune + Test Pipes, GTS DCT Tune |
Appreciate
0
|
02-10-2013, 10:06 PM | #17 | |
that's what SHE said!
75
Rep 1,163
Posts |
Quote:
Interesting. If you can get it on video that would be ideal.
__________________
|
|
Appreciate
0
|
02-11-2013, 12:40 AM | #18 | ||
Second Lieutenant
85
Rep 280
Posts |
Quote:
From your owner's manual: Quote:
Also, if you drive this way you'll discover that it doesn't simply drop a gear to avoid bog. It will skip gears and select the appropriate gear. Nearly all of my driving is city and as I mentioned before, it's only happened a few times as of late and I suspect the adaptive capability has something to do with it. |
||
Appreciate
0
|
02-11-2013, 01:05 AM | #19 | |
that's what SHE said!
75
Rep 1,163
Posts |
Quote:
__________________
|
|
Appreciate
0
|
02-11-2013, 05:43 AM | #20 |
Brigadier General
1013
Rep 3,157
Posts |
Same thing happened to me in my E60 M5 a few times, it always corrected itself once I fully removed my foot from the throttle and re-engaged. One time I distinctly remember a pretty violent 'clunk' when it down shifted under load, it was very concerning...a couple month later the clutch gave out. That was the old SMG, seems the new DCT still has some of the same quirks.
__________________
Former Car: '16 SUNBURST GOLD F80 ///M3--6MT/Carbon Cloth (ED Thread) Former Car:'13 SANTORINI BLUE E92///M3--6MT/Speed Cloth/ZCP(ED Thread) INSTAGRAM:@C2KMotorsports Last edited by Curt2000; 02-11-2013 at 06:34 AM.. |
Appreciate
0
|
02-11-2013, 09:15 PM | #21 | |
Second Lieutenant
85
Rep 280
Posts |
Quote:
The DCT has a few computer controlled systems that assist when needed, one of which is the ability to downshift to an appropriate gear before the engine bogs or comes anywhere near stalling. |
|
Appreciate
0
|
Post Reply |
Bookmarks |
Tags |
dct, transmission |
|
|