Passat Coding changes

[Rocket36]

Yeah I knew about the remote close... Might just have to live with that.

[nivek]

Now I just need to drive down to Geelong and go through the speed checks on the freeway to see how accurate the CAN bus speed is...

Wouldn't a GPS unit provide you with a more accurate reading?

[Pana]

Wouldn't a GPS unit provide you with a more accurate reading?

Don't have one (apart from the RNS in the car) and dont have easy access to one.

[R36 Dreamer]

How loud is your chirp Dreamer?

Extremely quiet. Much quieter than I expected.

Definitely registers with my brain though - one chirp locked, two chirps unlocked.

[passatpout]

Don't have one (apart from the RNS in the car) and dont have easy access to one.

I've compared mine with my GPS, and went through 2 of the speed checks.. in both cases cruise was set on 105km/h, the GPS was showing 99km/h, the first speed check showed 104km/h, and the second 97km/h...

Whereabouts in Melbourne are you Pana?

[R36 Dreamer]

I've compared mine with my GPS, and went through 2 of the speed checks.. in both cases cruise was set on 105km/h, the GPS was showing 99km/h, the first speed check showed 104km/h, and the second 97km/h...

Whereabouts in Melbourne are you Pana?

At a single steady speed I believe GPS will be the most accurate, given it needs to measure speed to calculate time to destination etc.

What I found interesting is that if I am on the highway at a steady (GPS indicated) 110km/h and I reset the trip computer to zero out the Average speed reading, when the av speed comes back up it is the same as the GPS reading.

This leads me to believe the car is measuring speed correctly, but the speedo does not correlate with the car - if that makes sense.

[Swallowtail]

It does make sense, and that is because that avg speed function is dictated by the CAN bus speed I believe. Maverick's post on his website about altering speedos mentions this I think.

[Pana]

I've compared mine with my GPS, and went through 2 of the speed checks.. in both cases cruise was set on 105km/h, the GPS was showing 99km/h, the first speed check showed 104km/h, and the second 97km/h...

Whereabouts in Melbourne are you Pana?

South east - which speed checks did you go through passatpout - the hume hwy ones or the Geelong freeway ones?

[passatpout]

South east - which speed checks did you go through passatpout - the hume hwy ones or the Geelong freeway ones?

I think it was the Hume. Certainly a freeway with 2 of them on the same route, even my wife commented on how different the readings were - both were on clear road without any other traffic around.

Despite the fact there's one on the Calder near my place, I never drive on that section of the road..

[Pana]

Despite the fact there's one on the Calder near my place, I never drive on that section of the road..

is that after the thunderdome coz I was there a couple of weeks ago and didnt see one on the way....