Throttle sensitivity

[zorbs]

Hi All,

Am I alone in thinking that the throttle is a bit too light for a car of 400 ish BHP? Virtually all RS4 owners I've ever spoken to have problems regulating the throttle over bumps, which makes it harder to drive than it needs to be - particularly on fast bumpy corner exits when holding part throttle before giving it the beans for example.

Obviously there's an element of practice involved, but I've had other cars with bumpier rides and not had the same problem. I could have the throttle mapping made more progressive, but I'm not convinced that it's actually anything to do with this as it's easy to manage on smoother roads. Does anyone think more resistance could be the answer? Perhaps stronger springs somewhere?

Thoughts appreciated.

[lengster1]

I find mine hard to drive smoothly around town in sport mode

[P_G]

Around town in sport mode use 2nd 4th and 6th, plenty of torque to keep it going. If you have it mapped you can change the throttle agression which may help; it's on a scale of 1-9 and most are OEM set at 4-5, 1 being agressive.

[Marcus-RS4]

You think the RS4 is bad, try an SMG M3 in sport mode!

[scottie1979]

Or a Z4 M in sport mode! I can drive the RS in sport mode no problem after that

[zorbs]

So we're not alone kangarooing out of the odd corner then...

PG, can you elaborate on the throttle agression setting - I've not heard of that but it may be worth a try as I assumed the throttle map was tailored rather than set to a number.

Anyone know where the springs in the throttle setup are?[/quote]

[P_G]

Throttle aggression is one of a number of tables in your ECU map. Upload and see re-map's will invariably pick an agression setting that is higher than OEM but if you go to somewhere that can tailor their remap i.e. change their remap tables whilst they you are there you should be able to select the aggression setting. Audi are unlikely do this for you unless they send your map program back to Germany for ££££££'s.

Re-maps invariably get programed into redundant tables on your ECU alongside the OEM program and the remapper as part of the process 'tells' the ECU to refer to those tables rather than the OEM ones. When you have a software update from Audi it restores the defaults and tells your ECU's to look at the OEM tables again hence why you then have to go back and your mapper will 'tell' the ECU's to look at their tables again.

HTH.

[Nib]

So we're not alone kangarooing out of the odd corner then...

PG, can you elaborate on the throttle agression setting - I've not heard of that but it may be worth a try as I assumed the throttle map was tailored rather than set to a number.

Anyone know where the springs in the throttle setup are?

[/quote]

The throttle's fine. I drive mine frequently in London with & without the Sport button being pressed. You (should) quickly get used to it.

I wouldn't spend too long looking for a throttle spring. They're all electronic these days (ask Toyota) and any interferance with the system would not meet with the ECU's approval.

Easier to train your right foot.

[ChrisCSL]

I've got used to it even in sport mode around town (although I would normally switch off). Being a previous owner of an M3 CSL and a Z4M Coupe in sport mode these cars are savage! You can't drive a CSL in sport mode on a bumpy road without kangarooing. Believe me the RS4 is nothing, you just need a delicate right foot. Also driving an Elise helps here too. My footwork is lighter than Lionel Blair's

[sonny]

im starting to sound like a broken record regarding the SW0090 update, but this was also to overcome the kangarooing as you described as well as smokey starts. so it might just be the SW edition you have, do you know what you are running?

[mac4RS]

im starting to sound like a broken record regarding the SW0090 update

[Nib]

im starting to sound like a broken record regarding the SW0090 update, but this was also to overcome the kangarooing as you described as well as smokey starts. so it might just be the SW edition you have, do you know what you are running?

Well, you live & learn. I thought SW0090 (which my July 07 car came with new incidentially), was just to increase the idling speed for 30secs or so after a cold start to prevent petrol pooling & fluffed plugs if it was shut down before the warm-up cycle completed. I didn't know it addressed anything else, but having never driven a pre-SW0090 car I wouldn't know!

I've always put the slight "kangarooing" down to the Quattro systems' natural driveline shunt. My Sport was exactly the same, if not slightly worse.

[sonny]

well according to my Audi tech he said the SW0090 solved those 2 issues.

[RS4VR]

I find mine hard to drive smoothly around town in sport mode

I've found the following helps a lot.. not sure why, I believe it has something to do with the DSC cutting throttle on shifts.

In any event.. If I press the DSC button in and hold it, the flashing DSC icon on my speedometer console turns solid and the car drives much smoother (ie no jerking between shifts etc)

If anyone knows the different DSC levels (ie. what does flashing mean vs solid) I'd love to know!

'08 RS4 Cab (Ibis/Black) 7k-mi

[RS4VR]

DSC=ESP Button