pudding

So I was playing around with my ESP switch today and I saw if you hit it once only ASR is turned off, but if you hold it for like 3 seconds both ESP and ASR are turned off. What is the difference between the two of them?

flyfishing

i would like the answer to this too.

DavidRS4

From the Audi website:

"The electronic stabilisation program (ESP) makes the vehicle easier to control in handling situations close to the limit It reduces the danger of swerving and thus improves directional stability. ESP identifies the car's intended direction and response. It applies the brakes on individual wheels, thereby generating one-sided forces that help to keep the car moving in the desired direction. The program uses the anti-lock braking system (ABS), electronic brake-force distribution (EBD), the electronic differential lock (EDL) and the traction control (ASR) system, and is permanently active."

"For today’s typical high-torque engines, a form of wheelslip regulation or traction control (ASR) can increase both comfort and safety, particularly on surfaces with differing coefficients of friction or on slippery roads. It makes smooth starts and acceleration possible through all speed ranges without wheel-spin or fishtailing.

ASR only operates in conjunction with the electronic accelerator (E gas) and uses components of the anti-lock braking system (ABS). If one wheel suddenly begins to rotate faster than the others (slip), ASR intervenes in the engine management system and reduces power until the wheel stops spinning.

ASR improves traction and can help the driver maintain control even if the limit of adhesion is inadvertently reached while cornering. In addition, it reduces tire wear. ASR activation, is indicated by a flashing light in the instrument cluster; it works with the electronic differential lock (EDL) and it is also part of the electronic stabilization program (ESP). ASR can be deactivated with the ESP switch."

pudding

Thanks DavidRS4.

marksv

I read that if you switch ESR off, with your foot on the brake, revving the engine over 2000. If you then push the accelerator down while releasing the brake all the shifts points will be for maximum acceleration. I've tried it. It seems to really scoot and the acceleration is surprisingly smooth. Has anyone else tried this?

Zamboni52

I've done this in the 2001-2006 M3s. It was amazing how fast you can get off the line. My A5 is a 6spd...still experimenting to get the best 0-60 times.

ewcpalo

You can chech this video on YouTube: (not an Audi in the video)

http://www.youtube.com/watch?v=j-hHW...F41DEF&index=0