Anyway increase refresh rate of data in the MFD

[davewave]

It would be really nice to have an MFD that shows your speed at a higher refresh rate then what it current displays. Any thoughts on how to do that? Or a digital RPM readout? Don't have VAGCOM or the guts to mess with it. VW people when I ask them don't want to touch it either for some reason.

[Corey_R]

I would say the answer is no, because for what possible reason would Volkswagen purposely slow down the refresh rate of the digital speedometer?

[davewave]

I would say the answer is no, because for what possible reason would Volkswagen purposely slow down the refresh rate of the digital speedometer?

You haven't obviously read my post. I said INCREASE REFRESH RATE as in the speedo updates alot more frequently so as to show you a more realtime update of your actual speed. Currently it lags a bit and isn't always reliable.
Also I've noticed that the digital speedo is a bit faster then the analogue speedo. Which one is correct?

[night_flight]

I agree with you davewave that would be really good. My friends honda civic displays speed much faster.

[Maverick]

You haven't obviously read my post. I said INCREASE REFRESH RATE as in the speedo updates alot more frequently so as to show you a more realtime update of your actual speed. Currently it lags a bit and isn't always reliable.
Also I've noticed that the digital speedo is a bit faster then the analogue speedo. Which one is correct?

You obviousolly haven't read coreying's post because he said why would Volkswagen slow down the rate the information is updated.

The data is coming via CAN bus, it cannot be sped up to display any faster.

The digital speedo is more accurate - the primary one has to have error introduced - Volkswagen Speedometer Error Correction

[Corey_R]

You haven't obviously read my post. I said INCREASE REFRESH RATE as in the speedo updates alot more frequently so as to show you a more realtime update of your actual speed. Currently it lags a bit and isn't always reliable.

Um... I did read your post. You haven't obviously read my post (properly).

As I said, if the refresh rate could be increased, why would it not already be running at that increased rate? Why would Volkswagen slow the refresh rate down to increase lag?

My original post still stands. I don't believe it is possible.

Also I've noticed that the digital speedo is a bit faster then the analogue speedo. Which one is correct?

The digital speedo is more accurate, but still not correct. You can test the exact inaccuracy using the following steps:
Drive at 100kph as indicated on your analogue speedo. Engage cruise control if needed to keep it 100% steady. Change to the "average speed" on your trip meter. Reset the trip meter. The first value which appears is your actual speed (as long as you haven't changed the wheels or any other driveline component which may affect speed).

In other words, if your analogue speedo says 100kph, but your average speed says 93kph, then you're 7% out - which is about std for late model VW's. Lets not get into the discussion why here though - it has already been discussed in many other threads...

[Maverick]

I agree with you davewave that would be really good. My friends honda civic displays speed much faster.

Your friends civic does not have a MFD that pulls in information over a CAN bus and displays information from many different controllers in the cars, the comparision is pointless as the civic is a different car without the technology that the Golf has.

And the Civic only has a digital readout for speed, the MFD readout is not intended to be used as the primary speed readout hence.

[night_flight]

Your friends civic does not have a MFD that pulls in information over a CAN bus and displays information from many different controllers in the cars, the comparision is pointless as the civic is a different car without the technology that the Golf has.

And the Civic only has a digital readout for speed, the MFD readout is not intended to be used as the primary speed readout hence.

thats true Maverick it doesnt have MFD but it just would be good if it was a little bit quicker in refresh rate. I agree with coreying when he says "The digital speedo is more accurate, but still not correct."

[Syd118TSI]

The digital speedo is more accurate, but still not correct. You can test the exact inaccuracy using the following steps:
Drive at 100kph as indicated on your analogue speedo. Engage cruise control if needed to keep it 100% steady. Change to the "average speed" on your trip meter. Reset the trip meter. The first value which appears is your actual speed (as long as you haven't changed the wheels or any other driveline component which may affect speed).

In other words, if your analogue speedo says 100kph, but your average speed says 93kph, then you're 7% out - which is about std for late model VW's. Lets not get into the discussion why here though - it has already been discussed in many other threads...

Great simple way to test it Corey, though I'm afraid if I do test it I will make my own 'adjustments' to driving speed and will consequently push the limits against the revenue collectors... so maybe I'm better off thinking that I'm actually doing whatever it says

The refresh rate of the digital readout is not that great, but adequate for what it is in my opinion. It does beg the question what do most people choose to have up on their MFD/MFI by default?

[FJ Steve]

I find the refresh rate for l/100km a tad slow on our MKV, when compared to our daughters 2007 CDX Astra (Opel), which provides instantaneous figures. The MKV update sit's reading every 500m or so (maybe longer).

The default readout on our MFD is the avge fuel consumption....it's always a challenge to try and keep it below 9.0l/100km

[Syd118TSI]

I find the refresh rate for l/100km a tad slow on our MKV, when compared to our daughters 2007 CDX Astra (Opel), which provides instantaneous figures. The MKV update sit's reading every 500m or so (maybe longer).

The default readout on our MFD is the avge fuel consumption....it's always a challenge to try and keep it below 9.0l/100km

Avg fuel consumption is what I had up most of the time as well, though different target for consumption in the MKVI.

'Real time' consumption is interesting for a little while, but of course not much use long term. The Mrs liked having the digital speed up as she felt it gave her a more accurate representation of the speed she was doing - which is good because she's a little bit of a non-intentional lead foot, despite having a perfect driving record (touch wood).

[hooba]

The slow refresh rate on the speed is disappointing, and I'm not sure why it's like that as the current model Audi A4 does not have this problem. This has never been problem for me in the past as I've been happy with getting the reading from the speedometer needle, however in the Golf this isn't an option because the speed on the analogue gauge is shown in such small increments.

In Australia we need to clearly read the speedo at 60km/h (damn speed cameras) rather than having it go all the way around to 280km/h.

[yyn]

I find the digital speed display quite acceptable and reading 60km/h on the analogue display is quite easy for me. The only difficulty I found is the 70km/h due to the small increment after the 60km/h mark then I would just rely on the digital speed display.

[slipshot]

Good questions regarding the accuracy. For me, yet to be done, the solution is to use my Tomtom in the car and see what speed that reads when going at a constant 100 for example. I know this is not perfect either, but it's a lot more accurate using GPS than the speedo or digital read out. And it's always interesting to see how much it is out. My Cooper S, just departed, would be doing 100kph when the speedo read 107. Our Citroen Picasso reads 103 when actually doing 100. Suspect the Golf will be nearer the Mini...

[hooba]

Good questions regarding the accuracy. For me, yet to be done, the solution is to use my Tomtom in the car and see what speed that reads when going at a constant 100 for example. I know this is not perfect either, but it's a lot more accurate using GPS than the speedo or digital read out. And it's always interesting to see how much it is out. My Cooper S, just departed, would be doing 100kph when the speedo read 107. Our Citroen Picasso reads 103 when actually doing 100. Suspect the Golf will be nearer the Mini...

My one is around half way between the MINI and Picasso, however due to the delayed refresh rate the actual variance can be a lot more.