First Golf R 420 hp (315kw) build in the world - Australian exclusive!

[Corey_R]

Re ACC: the steering is much heavier in sports mode, which is great for spirited driving over 80km/h (but too heavy for normal driving and parking speeds).

That's actually how I first noticed it. I drove out of the dealer in sports mode and on that mode for about 5 minutes. I was thinking to myself how heavy the steering was compared to my Polo. But then I changed it to Comfort, and went to turn into a side street, and all of a sudden I almost turned the wheel around 3 times it was so light! hehe

[dave_r]

I have crap upper body strength, so I immediately noticed the difference with the ACC and steering in sport mode

Re ACC: the steering is much heavier in sports mode

Welcome to the girly arms club LOL. My excuse is never getting of the couch to do anything useful

[Maverick]

Welcome to the girly arms club LOL. My excuse is never getting of the couch to do anything useful

Attach a weight to the remote and within months you'll notice a difference.

[AdamD]

Re ACC: the steering is much heavier in sports mode, which is great for spirited driving over 80km/h (but too heavy for normal driving and parking speeds).

On my non-ACC car, I've noticed that the steering weighting is quite speed sensitive. While there may be minor adjustments to the weighting at low speeds, it seems to make a big transition around the 80km/h mark - I've noticed it several times while having a go on faster flowing bends, and also whilst changing lanes at varying (higher) speeds.

It'd be interesting to know how much variation there is in the system on an ACC equipped car in various modes, versus a non-ACC car.

[G-rig]

I assumed that the steering on non-ACC cars would be too light at higher speeds, however maybe having a lower car helps this?

[Guy_H]

On my non-ACC car, I've noticed that the steering weighting is quite speed sensitive. While there may be minor adjustments to the weighting at low speeds, it seems to make a big transition around the 80km/h mark - I've noticed it several times while having a go on faster flowing bends, and also whilst changing lanes at varying (higher) speeds.

It'd be interesting to know how much variation there is in the system on an ACC equipped car in various modes, versus a non-ACC car.

From what Adam is saying - it sounds like the steering weight is a standard feature (which makes more sense). Someone needs to back to back test two cars with the different options.

[Maverick]

From what we can gather with diagnostics it does not change - you can see dedicated channels going OUT from the steering controller to the ESP system (chassis control piggybacks off this) but there are no return INPUT channels to the the steering. So from what I gather, the only change you will feel in steering is from the dampers being stiffer or softer. It may be elsewhere in the system, but I can't see any reference to it what so ever.

If my understanding is correct when Adaptive Chassis Control switches to Sport it sends a command via the gateway control unit (in the dash) to the electromagnetic power steering system system to alter it's operation, the same applies when it switches out of Sport mode. The gateway control unit interfaces the control unit behind the drivers side rear wheel to the CAN bus system.

[Maverick]

I assumed that the steering on non-ACC cars would be too light at higher speeds, however maybe having a lower car helps this?

I believe it's the same as the Mark V where it adjusts depending on speed. The steering assistance is controlled by a map loaded in the control unit at the factory, this can be altered but not via VCDS IIRC. The map provides five different settings for 0km/h, 15km/h, 50km/h, 100km/h and 250km/h.

It works with turning the steering wheel which twists a torsion bar, a sender transmits this info along with the steering wheel angle sensor, speed (vehicle and engine) details to the control unit which activates the electric motor to provide assistance based on the map above.

[Guy_H]

[ravun]

Nice work Guy. Good luck with the Castrol Edge Hot Tuner Challenge with this awesome piece of work.

Have you got some pics of the exhaust? How does the exhaust tone compare to stock?