I’ve seen this “driving style” mentioned a few times on here and other Audi forums with regards to this car.
What do they mean?
And also... why are people so keen to change wipers on their A2’s?
Cheers
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The FSI has effectively two stages of power, low down the flaps reduce the volume of air that flows into the cylinders because the large bore does not allow a fast enough flow of air. When the revs climb the speed of the incoming air increases and so it can handle a wider bore and so the flaps open.
The theory being that you can get "normal" performance and economy at lower revs and more power when you use higher revs.
That means that if you are "poodling" around town and then floor the throttle, the revs rise slowly until 3000 or so and then the car performs very well.
So when driving a diesel with loads of torque you do not have to rev the engine highly, on a FSI if you want performance you really do rev it highly up to around 6000 RPM if you want to have fun (on safe roads or tracks of course)
The driving style of the TDI is very different and so if you are used to that and then switch to a FSI you do need to rev it more than the diesel.
As for the wiper, the "Floppy" wiper is MUCH better than the wipers with a metal frame, they are quieter and work much better.
Steve B
Sorry forgot to mention your video. IF your FSI is like the video something is wrong. It's difficult to say as it not clear what gears are engaged but assuming the driver is 'trying' with foot hard down on accelerator the revs and speed should of course rise steadily and quickly. By the end of that video I am sure I would be exceeding the speed limit and maybe an instant ban! I can say quite definitely that my FSI cruises at 70mph with 3200rpm if that is any help.
It's late, goodnight.
Andy
Your correct Timmus, the swirl flaps or intake manifold flaps as Bosch call them has the following purpose:
The intake manifold flap closes the lower duct in the cylinder head. The intake air flows at a faster rate and tumbles into the cylinders via the upper duct.
In the cylinder, the tumble motion of the air is increased by the special shape of the piston crown.
My Fsi had the same hesitation symptom when I bought it and I started with:
- injection cleaning
- Replacing the sparks and coils. It made some improvements but I could still notice some hesitation.
- Next step was to replace the low pressure fuel pump and pressure regulator without any improvement.
- Finally I removed the intake manifold and dismantled it and cleaned it with "oven cleaner", replaced the injectors, high pressure valve and high pressure sensor, all at the same time, and finally no more hesitation.
- I got the replaced injectors controlled, the flow measured, cleaned and measured again. They were faultless from start and not the root cause.
So, what's your opinion about the culprit ?
- Finally I removed the intake manifold and dismantled it and cleaned it with "oven cleaner", replaced the injectors, high pressure valve and high pressure sensor, all at the same time, and finally no more hesitation.
- I got the replaced injectors controlled, the flow measured, cleaned and measured again. They were faultless from start and not the root cause.