Evening all,

Hope someone can help. I am a very happy owner of a 2.5 Edition 100 but would just like to ask other 2.5 owners how their cards pull away from a junction.

My problem is this..... If I am coasting up to a junction at approx 5-10mph and decide that I don't need to stop, I put my foot down (hard or soft, it makes no difference), the engine will take a good 2 seconds to do anything. This basically is the time it takes the car roll out into the road and face the correct direction:eek:. If the car is stationary, it pulls away fine.

Is this a 'feature' of the engine/gearbox, or do I need to get down to the dealer before the warranty runs out!

Your help would be greatly appreciated.

The one I test drove did this (I eventually bought a manual). I think that if the car is still moving, it won't select first gear as the gearbox controller uses road speed as the major input to determine which gear to select. I didn't like it.

rotodiesel.

You could also try a new air filter as a simple cheap solution possibility.

By 'coasting' do you mean having engaged Neutral before coming to a stop?

If yes, I think there is some kind of interlock (which I think is speed related) which forces you to touch the brake before engaging Drive.

Never encountered this problem in mine.

I thought 'coasting' in neutral was discouraged for safety reasons. Not sure what the reasons are. I'm sure someone will enlighten.

I thought 'coasting' in neutral was discouraged for safety reasons. Not sure what the reasons are. I'm sure someone will enlighten.

Shags the box as well, thats why when towing an auto they recommend slow speeds or disconnecting the final drive if possible.

There is a roundabout I go into daily coasting (that does not mean with the drive selector in 'N'; it just means with my foot off the accelerator) and there can be a momentary hesitation in responding if hard acceleration is called for. The way of avoiding this seems to be to enter the roundabout with the gear selector in '3' (using the TIP) and the car is much quicker to respond to the command to accelerate.

Mine does this and I put it down to the Turbo lag. It can very very unnerving at first but you just get used to it.

John

Mine does this and I put it down to the Turbo lag. It can very very unnerving at first but you just get used to it.

John

Two seconds? Seems a bit excessive for turbo lag...

Thanks for the reply's. Well I'm glad I'm not the only one with this 'problem'. As Tarzey said, it works fine when in 'tip' mode.

The wife finds it unnerving and doesn't like to drive the car unless she really needs to. Every cloud DOES have a silver linning!

It's got to go into the garage to have the reversing sensors sorted out so I'll mention it then and see what the man at Platinum in Bath has to say.

Thanks for your help. I'll let you know what Platinum say about it...

You are right but I'm thinking it seems like 2 secs when it is really about 0.5 secs.

John

people people !! thats called TURBO LAG

people people !! thats called TURBO LAG

Er...

Two seconds? Seems a bit excessive for turbo lag...

Compared with a manual box, the take off of the auto from being slowly "on the move" is terrible. I thought it to be unacceptable on a test drive.

rotodiesel.

Compared with a manual box, the take off of the auto from being slowly "on the move" is terrible. I thought it to be unacceptable on a test drive.

rotodiesel.

Exactly. If you want a car that's quick at pulling out of junctions - drive a manual.

Turbo lag is a problem suffered (obviously) by all turbo cars - but this problem doesn't happen on manual four pots or manual V6 TDI's... which points to the 'box.

Exactly. If you want a car that's quick at pulling out of junctions - drive a manual.

Turbo lag is a problem suffered (obviously) by all turbo cars - but this problem doesn't happen on manual four pots or manual V6 TDI's... which points to the 'box.

It ain't as bad as the lag on a VX, on my 1.9TDi it's hardly noticeable, this could be me adapting to it though, new fuel filter helps as well, cured a couple of very minor faults on mine, like murmer on idle and general smoothness.

The problem with the 2.5 Auto is not turbocharger lag but simply a lack of boost. If you are moving and attempt to pull out at a junction, the transmission won't select first gear. You then have two problems - second gear is too high for the intended manoeuvre (try this with a trailer) and the engine revs are correspondingly too low to give any boost.

This car was once voted "Towcar of the year" by some bunch of clowns, so this was the first Superb I test drove before I bought one. Obviously you can't test drive it with a trailer on the back, but you don't have to be a genius to work out what it will be like.

I bought a 4 cyl manual diesel - it does the job very well.

These magazine testers are better at eating the free lunches than they are at understanding what's good and bad about the cars. Complete bunch of idiots.

rotodiesel.

Edited 1 August, 200817 yr by rotodiesel

It ain't as bad as the lag on a VX, on my 1.9TDi it's hardly noticeable, this could be me adapting to it though, new fuel filter helps as well, cured a couple of very minor faults on mine, like murmer on idle and general smoothness.

Yeah, the diesel VX's are rubbish. They redefine turbo lag.

Superbia wrote: (Coasting)

Shags the box as well, thats why when towing an auto they recommend slow speeds or disconnecting the final drive if possible.

But only if the engine isn't running - if the engine's running and the gear box oil pump is therefore turning, then it's OK to coast or tow.

Sorry to re-open a very old posting, but while I was messing around in the car the other day, I noticed that if you brake whilst accellerating, the power gets cut off. The time it takes to restore power once the brake pedal is lifted is the same as the 'delay' I am experiencing at junctions.

Is this 'feature' that can be disabled?

Cheers

Adam

Sorry to re-open a very old posting, but while I was messing around in the car the other day, I noticed that if you brake whilst accellerating, the power gets cut off. The time it takes to restore power once the brake pedal is lifted is the same as the 'delay' I am experiencing at junctions.

Is this 'feature' that can be disabled?

Cheers

Adam

You'll find all turbo cars will cut boost if the brake pedal is depressed at the same time as the accelerator. It's a safety feature to stop the motor overboosting and the driver struggling to control the car whilst braking.

Unlikely you can disable it

Toyota have just cottoned on that this feature is quite a good idea if things go wrong. They've just started retrofitting it...

rotodiesel.

Have a look at my old post :

http://briskoda.net/forums/topic/157936-got-a-tiptronic-box-and-access-to-vag-com/page__p__1948314__hl__tiptronic%20sport%20mode__fromsearch__1entry1948314

If you have access to VAG-COM it may be worth changing your gearbox mode to help.