Yet another VAG strange feature

Yet another VAG strange feature

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DustyC

Original Poster:

12,820 posts

259 months

Tuesday 25th May 2004
quotequote all
I cant stall my Golf!

TDi 90 Golf.
If you let the clutch out in first the engien revs build to prevent it stalling and then settle again as the car rolls along. You can then change up through the gears and it happens in each gear.
It will finally drive along at 30 MPH in fifth gear with out touching the throttle at all. It doesent even sound laboured.

I drive all the way home the other night with out using the throttle (much to my girlfriends annoyance, but I had to prove a point and it was only 1 mile!)

timbrown

108 posts

244 months

Tuesday 25th May 2004
quotequote all
I'll try this later when I get my Leon back
drove an RS4 with a competition clutch this weekend, now that WAS easy to stall ... I didn't but 75% of the other drivers did .. talk about binary clutch, suppose it goes with the digital throttle ?

Plotloss

67,280 posts

275 months

Tuesday 25th May 2004
quotequote all
Thats a feature of diesels.

HUGE torque you see...

DustyC

Original Poster:

12,820 posts

259 months

Tuesday 25th May 2004
quotequote all
I know its a normal diesel thing (I've owned a 4.0 Diesel) but this seems to be an ECU controlled thing. The revs seem to rise and fall in such a controlled manner.
What with the anti-left foot braking device and this the car is close to driving itself!

Marki

15,763 posts

275 months

Tuesday 25th May 2004
quotequote all
Plotloss said:

Thats a feature of diesels.

HUGE torque you see...


So err can someone explain torque to me again

trefor

14,653 posts

288 months

Tuesday 25th May 2004
quotequote all
My A6 petrol does that. Nice in a traffic jam, just lift the clutch slowly and the car moves off. Anti-stall technology.

Plotloss

67,280 posts

275 months

Tuesday 25th May 2004
quotequote all
DustyC said:
I know its a normal diesel thing (I've owned a 4.0 Diesel) but this seems to be an ECU controlled thing. The revs seem to rise and fall in such a controlled manner.
What with the anti-left foot braking device and this the car is close to driving itself!



Yeah, that it could be.

My Cooper S did it as well, when you dipped the clutch it added about 200rpm after the initial dip to make the upchange quicker.

Nice little touch I thought.

Roadrunner

2,690 posts

272 months

Tuesday 25th May 2004
quotequote all
If you have no torque in an engine you have to rev the nuts off it - think moped.

If you have mega torque you can pull away effortlessly - think steam train.

Stepping from my elise into driving an R32 is fairly similar to the above examples. Both in pulling power and noise!

DustyC

Original Poster:

12,820 posts

259 months

Tuesday 25th May 2004
quotequote all
trefor said:
My A6 petrol does that. Nice in a traffic jam, just lift the clutch slowly and the car moves off. Anti-stall technology.


I discovered it whilst bored in a traffic jam too!
Makes slow jams not half as bad and certainly a lot better then the quadricep press required when in the griff

tuffer

8,870 posts

272 months

Tuesday 25th May 2004
quotequote all
Obviously this is not fitted to Audi A4 1.9TDi's as mine stalls on average 30 times a day

timbrown

108 posts

244 months

Tuesday 25th May 2004
quotequote all
Dusty ... bored in a traffic jam ?
I'm disappointed !
my personal fav for that is to give the car in front 10-15 yards space, then dump the clutch in first with plenty of revs, and leave two nice black lines for the car behind me to enjoy while I check out the look of fear on the guy in fronts mirror !
works every time

adrianr

822 posts

289 months

Tuesday 25th May 2004
quotequote all
I do the same in jams on my TDI 130; between that and the cruise control I save a lot of pedal rubber wear :-)

The thing I want to know is why it can't do clutchless shifts once on the move - seems to me all the sensors and ECU capability is there, just needs programming...wonder if any of the re-chip merchants have tried it?

mmm. thinking about it, perhaps it doesn't know which gear it's in, so you'd need a pickup for that.

AdrianR


>> Edited by adrianr on Tuesday 25th May 14:46

DustyC

Original Poster:

12,820 posts

259 months

Tuesday 25th May 2004
quotequote all
thats a good point adrian, just needs a little sensor to tell it when the gear stick is moved and what gear it is in.
Perhaps this would need an ON switch too.

Would also only be good for upshifts, obviously.

SJobson

13,051 posts

269 months

Tuesday 25th May 2004
quotequote all
My S6 has an anti-stall feature too. It's called an automatic gearbox