|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
What makes a manual shift crisp one time, then chunky/sloppy another?
|
|
12-03-2006, 07:39 PM | #1 |
Private
2
Rep 62
Posts |
What makes a manual shift crisp one time, then chunky/sloppy another?
So this is my 2nd BMW manual, and ever since I can remember, BMW has alwys beeen praised for its great manual transmissions. Well, my 330i doesnt feel impressive, in fact the last manual I drove, a late model A4 1.8 6 speed was snappier through the gears and had less of those odd chunky gear shifts. btw, I know how to drive a manual car properly, but im just trying to find out why the gears shift so perfectly one time, then the very next shift is sloppy (not specifically a 330i issue, ive noticed this on all manuals).
|
12-03-2006, 08:10 PM | #3 | |
Second Lieutenant
2
Rep 229
Posts |
Quote:
__________________
Ordered: 2007 328i Sedan/ Montego Blue/ Beige interior with wood trim/ STEPTRONIC/ Sport package/ Premium Package/ Cold Weather Package/ Comfort Access
Comes in January |
|
Appreciate
0
|
12-03-2006, 08:10 PM | #4 |
Private
2
Rep 62
Posts |
broken in for sure. and always noticed it. ON all my manual cars. Id say the one manual ivedriven that consistently snapped shifts over and over was the s2000...but id like to see honda do that with a higher torque engine.
what does that clutch valve do? how does that affect the shifts? |
Appreciate
0
|
12-03-2006, 09:56 PM | #6 |
Captain
12
Rep 715
Posts |
I think the OP is talking about the feeling of the shifter going into the next gear (with the clutch fully in and disengaged). That should have nothing to do with the CDV. The CDV will only effect how the clutch is released once the transmission is in the next gear...
Back on topic, I do know what you mean. It only seems to happen on the 1-2 shift every once in awhile. The shifter feels notchy getting into second. It really happens first thing in the morning when the car is cold. I think it has to do with how hard you push in the laterial (side to side) direction and how directly you hit the 2nd gear gate. I also noticed, that if I try and rush the shift and don't give the syncros enough time to slow down the input shaft, it will really happen.. Hope that helps answer the originial question.
__________________
E46 325xi Oxford Green/Sand Leatherette/Myrtle Wood Auto ZCW - Retired
E90 330xi Mystic Blue/Black Leather/Aluminum 6sp Manual ZSP/ZPP/ZCW/CA - Retired F22 M235i Mineral Gray/Red Leather/Aluminum 6sp Manual ZPP/ZTP |
Appreciate
0
|
12-03-2006, 10:32 PM | #7 |
Smiling politely
165
Rep 7,931
Posts |
I thought he was talking about jerky shifts, which would indeed be the CDV. Or I should say I guess it's the CDV because I haven't had a car with one before. This is my first Bimmer, but I've been driving MT for 20 years. It took me a while to get used to the BMW transmission, and it took my transmission a while to break in. But even now, sometimes the shifts surprise me as smooth one day and not so smooth another. I blame it on the CDV, not on the driver. CDV does seem to take away some of the clutch feel.
__________________
E90 330i Black Sapphire 6MT | 991.1 C4 Platinum Silver 7MT
|
Appreciate
0
|
12-03-2006, 11:29 PM | #8 |
Private
2
Rep 62
Posts |
lol, i blame the car too, because its the first time im having trouble with smooth shifts as well.Sometimes, spot on, others...WTH!?
But Espo, you got it right, that is what I was refering to, the notchiness of the shifter itself. Gladim not the only one. |
Appreciate
0
|
12-04-2006, 12:29 AM | #9 |
I AM the 12th. Emom
48
Rep 1,007
Posts |
this clutch/ shifter feel EXACTLY same as my 350Z,, notchy, heavy, not too smoothe... i swear thy are the same unit!!! i dont like it either..
its enough to make me go AT!!!!
__________________
e92, 335i SG/ Coral. 6m, LSD,
|
Appreciate
0
|
12-04-2006, 03:11 AM | #12 |
Captain
87
Rep 805
Posts
Drives: R NineT, X1
Join Date: Dec 2005
Location: Ventura County, CA
|
Operator error maybe?
Mine is smooth all the time, very consistent. Hasn't changed a bit. Maybe your car was made on Friday..........
__________________
GET LOST!
www.lostrider.com Last edited by Lost Rider; 12-04-2006 at 08:09 AM.. |
Appreciate
0
|
12-04-2006, 07:48 AM | #13 |
Private
2
Rep 62
Posts |
Doubt its the operator error. How hard is it to fully depress a clutch, and then move a shifter into its gear? There little margin for error there, especially when the car is fully stopped. Doesnt look like im the only one either.
|
Appreciate
0
|
12-04-2006, 08:52 AM | #14 |
From Russia With Boost
37
Rep 1,076
Posts |
Its always 2nd gear for me.
Sometimes i have to try again when shifting into 2nd. Its quite annoying, so im thinking about a CDV removal, if that may help.
__________________
2007 BMW 335i - Delivered 9/8/06
Sparkling Grpahite with Black Leather/Aluminum Trim Premium Package, Sports Package, Comfort Access. |
Appreciate
0
|
12-04-2006, 09:15 AM | #16 | |
Lieutenant General
4972
Rep 10,200
Posts
Drives: 2024 Golf R / 2022 718 Spyder
Join Date: Sep 2006
Location: Dallas, TX
|
Quote:
__________________
Past rides: 2016 981 BGTS, 2020 MINI JCW, 2017 F80, 2015 981 CS, 2014 F22 235, 2011 E82 135, 2008 E82 135, 2007 E92 328, 2007 E92 328 (My lady drives an OG M2. So does my dad)
|
|
Appreciate
0
|
12-04-2006, 09:47 AM | #18 |
Second Lieutenant
5
Rep 233
Posts |
My 3-4 is weird -- like the shifter wants to jump back to neutral. It is difficult to explain. You move the lever down and it just hesitates and then you have to double pump it to make it slide into fourth.
1-2 is just like trying to squeeze a square peg into a round hole. You can actually feel the resistance and a bit of a 'crunch' feeling as it slips in. Racing this car would be impossible. You'd have to be pretty strong to shift fast enough to get it into gear on time. I'm hoping it is a break in thing -- only 3,500 miles on my car. |
Appreciate
0
|
12-04-2006, 09:49 AM | #19 | |
Lieutenant Colonel
630
Rep 1,649
Posts |
I notice this too when the car is cold. It is not from the CDV as stated above. The CDV affects a smooth release and engagement of the next gear. Moving the shifter when the clutch is depressed is independent of CDV function. The issue is most likely due to cold tranny fluid not lubricating as well as it should. In my E46 this problem existed as well and it was almost completely cured by switching to RedLine. I still had it on very cold mornings or if the car sat for a long time, but it went away after a few shifts/miles.
Quote:
|
|
Appreciate
0
|
12-04-2006, 11:20 AM | #21 |
Non Resident
32
Rep 265
Posts |
__________________
Regards
SM 2006 325i | 6MT | Black Sapphire Metallic/Terra Leather/Burl Walnut | ZPP/ZCW | Premium Sound/Navigation/Xenon/PDC/Satellite Radio |
Appreciate
0
|
12-04-2006, 12:06 PM | #22 | |
Captain
12
Rep 715
Posts |
Quote:
__________________
E46 325xi Oxford Green/Sand Leatherette/Myrtle Wood Auto ZCW - Retired
E90 330xi Mystic Blue/Black Leather/Aluminum 6sp Manual ZSP/ZPP/ZCW/CA - Retired F22 M235i Mineral Gray/Red Leather/Aluminum 6sp Manual ZPP/ZTP |
|
Appreciate
0
|
Bookmarks |
|
|