Jump to content


Photo
- - - - -

DSG Clutch Question


  • Please log in to reply
17 replies to this topic

#1 dan_the_v8man

dan_the_v8man

    quattro nut

  • Members
  • PipPipPipPipPip
  • 2,215 posts
  • Location:Rotherham
  • Car:A5 3.0 TDi quattro S-Line Special Ed

Posted 25 February 2009 - 20:28

With the DSG gear box, if you are stood still with the engine running and your foot on the brake am I assuming correctly that both clutches are fully released, it isnt sat there slipping a clutch is it?

Also when using launch control im guessing it does the same, foot on the brake, and the clutches come in with a bang when you let your foot off?



Thanks,


Dan

#2 skodayouth

skodayouth

    Briskbeemer

  • Members
  • PipPipPipPip
  • 934 posts
  • Car:BMW 520i M-Sport Touring

Posted 25 February 2009 - 20:32

With the DSG gear box, if you are stood still with the engine running and your foot on the brake am I assuming correctly that both clutches are fully released, it isnt sat there slipping a clutch is it?

Also when using launch control im guessing it does the same, foot on the brake, and the clutches come in with a bang when you let your foot off?



Thanks,


Dan


Yes, when the brake is applied the clutch is released, but ready to engage operate as soon as the brake pedal is released

#3 dan_the_v8man

dan_the_v8man

    quattro nut

  • Members
  • PipPipPipPipPip
  • 2,215 posts
  • Location:Rotherham
  • Car:A5 3.0 TDi quattro S-Line Special Ed

Posted 25 February 2009 - 20:38

so when im stood still in traffic with my foot on the brake or waiting at the traffic lights it makes no difference if i leave my foot on the brake in D or put it in neutral instead?

#4 octavia5

octavia5

    Briskodian

  • FREEDOM
  • PipPipPipPip
  • 994 posts

Posted 25 February 2009 - 20:49

I think you will find that if you are in gear (drive, sport or manual) and stationary then the first gear clutch is permenantly slipping- to test simply ease your foot off the brake and you will feel the car try and creap forward, there is no magic complete dissengage with the foot break fully depressed

This also applies if you put the handbrake on, you will feel the car move up on its haunches with the drag from the clutch.

This subject has been cover in several other threads and this is the definitive concensus.

If the car if stationary and in gear then the clutch will be slipping, though wear is considered minimal

#5 Tom_vRS

Tom_vRS

    Family Man

  • Honorary
  • PipPipPipPipPipPipPip
  • 13,728 posts
  • Location:Northampton
  • Car:'56 Ford Galaxy Ghia / '03 MG ZT 1.8T

Posted 25 February 2009 - 20:52

I think its disappointing the clutch doesn't disengage when the car is completely stationary with a foot on the brake. Surely it would just be a software tweek. I'd be inclinded to pop it in neutral if at a standstill for long.

As said, if you put the handbrake on but foot off the clutch the car will fight the handbrake.

If you take your foot off the footbrake does it take up drive instantly or is there a substantial delay?

#6 dan_the_v8man

dan_the_v8man

    quattro nut

  • Members
  • PipPipPipPipPip
  • 2,215 posts
  • Location:Rotherham
  • Car:A5 3.0 TDi quattro S-Line Special Ed

Posted 25 February 2009 - 21:52

id expect that, but I thought the mechatronics would be setup so when it detects the car is stationary with the foot brake applied that it releases both clutches, and then when you let off the brake it gradually feeds them in so the car rolls forwards.

I thought that was the reason the car could roll back on hills

#7 nokiauk

nokiauk

    Uber Member

  • Members
  • PipPipPipPipPip
  • 1,404 posts
  • Location:Scotland
  • Car:Seat Leon SE TSI

Posted 25 February 2009 - 22:47

I just order a golf with the new 7 speed DSG, salesman told me to leave it in D for lights etc even on hills, foot on the brake will disengage the clutch to save wear, and as the new DSG has hill-hold as standard when you release the brake no roll back will happen, you can then just accelerate as normal.

#8 dan_the_v8man

dan_the_v8man

    quattro nut

  • Members
  • PipPipPipPipPip
  • 2,215 posts
  • Location:Rotherham
  • Car:A5 3.0 TDi quattro S-Line Special Ed

Posted 25 February 2009 - 23:04

ooh thats a point, my passat has got hill hold, cant wait till friday to try it out, this will be my first car with DSG and some how i dont think it will be my last :)

#9 numptie-boy

numptie-boy

    Briskodian

  • Members
  • PipPipPip
  • 157 posts
  • Location:Dundee
  • Car:Re-mapped Fabia vRS, '96 XJ Executive

Posted 25 February 2009 - 23:47

I think its disappointing the clutch doesn't disengage when the car is completely stationary with a foot on the brake. Surely it would just be a software tweek. I'd be inclinded to pop it in neutral if at a standstill for long.

As said, if you put the handbrake on but foot off the clutch the car will fight the handbrake.

If you take your foot off the footbrake does it take up drive instantly or is there a substantial delay?


My experience with my DSG is that, if you come to a stop and leave it in D then take your foot off the brake quickly to move away but dont put your foot on the accelerator, there is a slight delay as the clutches engage, however, if you take your foot off the brake and even lightly touch the accelerator, drive is taken up immediately. Also, if you stop and flick into neutral then flick back to D when ready, drive is also taken up immediately.
Sounds strange but fine when you get used to it.

#10 skippy41

skippy41

    Briskodian

  • Members
  • PipPipPipPipPip
  • 2,359 posts

Posted 26 February 2009 - 11:05

has anyone had to replace a DSG clutch, and are they capable of doing extremely high mileages
and what are the known problems associated with the boxes and clutches

#11 gilesk

gilesk

    MadridBriskodia

  • Members
  • PipPipPipPipPip
  • 1,355 posts
  • Car:Octavia 2.0 PD DSG Combi

Posted 26 February 2009 - 11:52

Lummox said once that the Clutches should last the lifetime of the car, I had problems getting the box oil changed for the first time as no one here knew how to do it apart from Skoda but no problems so far.

#12 skippy41

skippy41

    Briskodian

  • Members
  • PipPipPipPipPip
  • 2,359 posts

Posted 26 February 2009 - 11:55

Lummox said once that the Clutches should last the lifetime of the car, I had problems getting the box oil changed for the first time as no one here knew how to do it apart from Skoda but no problems so far.


I just hope they last 200K or 4 years, thats how long I keep my cars as taxis for

#13 TOURBOLUX

TOURBOLUX

    Briskodian

  • Members
  • PipPipPip
  • 144 posts
  • Car:SKODA OCTAVIA 1.8TSI DSG COMBI

Posted 26 February 2009 - 12:08

if you search in other forums, you will see that a lot of people had problems with the mechatronic unit and they had to change it. These failures though happened mainly within the warranty period. No actual cluches failures and extensive wear have been seen.

Noone yet knows if the new DSG 7s will show any similar problems with the mechatronic....

#14 skippy41

skippy41

    Briskodian

  • Members
  • PipPipPipPipPip
  • 2,359 posts

Posted 26 February 2009 - 12:18

mechatronic ???????? whats that please, and have skoda rectified this

#15 TOURBOLUX

TOURBOLUX

    Briskodian

  • Members
  • PipPipPip
  • 144 posts
  • Car:SKODA OCTAVIA 1.8TSI DSG COMBI

Posted 26 February 2009 - 14:40

think about it as the computer of the gearbox....

mainly those problems were identified with VW and Audi...

Edited by TOURBOLUX, 26 February 2009 - 15:38.


#16 richardjh

richardjh

    Briskodian

  • Members
  • PipPip
  • 88 posts

Posted 27 February 2009 - 18:44

i assume 'mechatronic' refers to the computer controlled servo system to select the gears and operate the clutches.

i shift mine into neutral when sitting at rest for an extended period. although with the brake depressed the clutch is disengaged it is still in gear so the plates are spinning past each other. my theory is this must consume energy and wear the oil.

if on a hill, then i use the handbrake to hold the car as i move from brake to accelatator as the car will roll back before the clutch picks up.

also in slow traffic i will switch to manual as the car prefers to slip the clutch in 2nd rather than re-engage 1st. to my mind this cant be good for one of the clutches for extended periods. and as i am sure many of us know we get to be in queues of traffic all too often in this country.

still love the 'box though. this way of working gives wonderfully crisp gearchanges.

#17 Bassa

Bassa

    Briskodian

  • Members
  • PipPipPipPipPip
  • 1,186 posts
  • Car:Yeti Elegance 1.2TSi DSG

Posted 27 February 2009 - 19:19

I have the new Octy 1.4 TSi with the 7 speed DSG on order and it will be my first experience of owning this double clutch type transmission. Have had Honda & Toyota semi automatics in the past which are fine in sequential mode but unpleasant & jerky in full auto mode.
Is it the 7 speed DSG only that comes with the hill start control? - also the 7 speed only seems to make its appearance with petrol versions? Seem to remember reading somewhere that the 7 speeder will also be suited to stop/start technology.

#18 Javaman

Javaman

    Briskodian

  • Members
  • PipPip
  • 67 posts
  • Car:July 04 Octavia Elegance 130 TDi 6-Speed

Posted 27 February 2009 - 19:21

I also stick mine into neutral when stationary for anything other than a few seconds - might not do any good but it certainly won't do any harm and can only prevent wear. When all said and done, a disengaged clutch will still drag and wear.
I'm generally happy with mine - up changes can be very smooth, down changes less so, particularly if the throttle is feathered. 4th to 3rd is particularly jerky. I also find that up-changes in the lower gears are smoother in manual than allowing it to do it's own thing.
I agree about the slipping in 2nd thing - I drive mine in tiptronic a lot of the time on the open road and only stick it in auto in town.
Have knocked it into neutral a few times when changing in up manually in auto mode . . . duh!!!