Temp gauge mod (actual temperature)?

[cheba]

So I'm wondering if it is possible to change the coolant temp gauge to show actual coolant temperature. I've seen threads on forums explaining how to do this on Golf mk4 and similar by editing the EEPROM of the gauge cluster. I've also heard that it can be done on the newer cars with white displays (like the 6R), but I haven't actually seen it done.

Does anyone know whether this is possible on the 6R (and perhaps have done the mod already)?

[ciclo]

How about this?


https://www.youtube.com/watch?v=whUKoo5-9hY

[cheba]

Yes, I've seen that video before and of course I would like to have an MFA-CS also. However I haven't yet felt that it is worth 169€ : https://www.suwtec.de/MFA-CS-Bis-zu-50- ... FA-Premium

If I for some reason really need a coolant reading I can use my OBD dongle and torque or another app. However I also think it would be nice to have a proper "living" coolant gauge instead of the heavy filtering that the gauge has from the factory. Analog gauges with physical needles are going extinct, and even many Polo 6R don't have temp or fuel gauges so I think that since they actually put a gauge with a physical needle in the WRC, it's a shame that it doesn't show the actual reading.

One the Golf mk4 and similar I think you had a look-up table with a huge flatspot in the middle corresponding to 90 degrees. The trick was changing the values in the look-up table to a more linear curve, using coolant temp readings from OBD as reference. I don't know if it's the same on the newer models and if it is, I don't know much about how to actually do it.

[ciclo]

I wonder why you want to know the actual reading of coolant temperature? Is not it enough with the outside temperature and the oil temperature shown by the MFA +?
Please, illustrate me ... ('m newbie in these matters)

Personally, gives me great confidence to always see the coolant temp needle at 90ºC, I think if the needle had small variations I'd start to think that something strange is happening.

[cheba]

It's not that I have any real use of knowing it. As an engineer, it just hurts my brain that they have included an analog gauge with a certain range and a numbered scale, but made it purposefully so that the needle's position is not directly related to the measured quantity. It is principally wrong in my opinion. It would perhaps not be as bad if they simply labeled the scale with "LOW" and "HIGH" or some other relative label, but when a measuring instrument has absolute labels (numbers) then it should be showing the actual measured number.

I also like to see measurements just because it interesting. I work in powertrain development and used to work in engine testing for a while, and although I am definitely not an expert in the thermal management of an engine, I think it is interesting to see measurements and to try and understand what is happening and what is causing the changes you see in the measurement.

I am fully aware of that this is how VW's temp gauges have been for a long time (it was the same on my old mk3 Golf GTI) and that the purpose is to give the customer a sense of security. It doesn't really matter to me because they include the oil temperature reading which takes away all my sense of security anyway ("why did the oil temp increase by 2 degrees in the last 10 seconds?" or "shouldn't the oil temperature be a couple of degrees higher than this after this amount of driving?" )

[RUM4MO]

I think all VW Group cars that have been fitted with an analog sort of way of displaying the engine coolant temperature have been suing this method from before 2000, it is slightly annoying but it is only intended as an indication of engine coolant temperature - okay the moving needle display is being supplied with a digital signal instead of an infinitely variable DC signal.

Generally I find that it works okay for what it needs to, as you do get an indication of it being low when not at working temperature, and being high when above that.

Simply a lot better than not having an engine temperature gauge - like most SEATs have.

[massimo23]

I just got this working in my polo



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[Dink]

I just got this working in my polo



Sent from my iPhone using Tapatalk

How did you do that?

[massimo23]

Menu Display Compass - OFF ROAD WITH AND WITHOUT NAVI
1 - Module 5F - Electronic Information 1. Code (20103)
2 - Adaptation
3 - Select - Car Function Adaptations Gen 2
4 - Search submenu - Menu compass display (ON)
5 - Search submenu - Menu display compass over threshold (ON)
9 - Byte 24 Navigation System
10 - Change value to On.
if you have Navi then you get everything working like compass, altitude, angle of wheels, oil temp and water temp.
If you don't have navi only Angle of wheels, oil temp and water temp will work and you will get a low priority fault in 5F,

Update: Correction: I said my car came activated with Sport-HMI but turns out it is not. So you don't need this activated for the Off-Road menu to work.

[ciclo]

It's not that I have any real use of knowing it. As an engineer, it just hurts my brain that they have included an analog gauge with a certain range and a numbered scale, but made it purposefully so that the needle's position is not directly related to the measured quantity. It is principally wrong in my opinion. It would perhaps not be as bad if they simply labeled the scale with "LOW" and "HIGH" or some other relative label, but when a measuring instrument has absolute labels (numbers) then it should be showing the actual measured number.

I also like to see measurements just because it interesting. I work in powertrain development and used to work in engine testing for a while, and although I am definitely not an expert in the thermal management of an engine, I think it is interesting to see measurements and to try and understand what is happening and what is causing the changes you see in the measurement.

I am fully aware of that this is how VW's temp gauges have been for a long time (it was the same on my old mk3 Golf GTI) and that the purpose is to give the customer a sense of security. It doesn't really matter to me because they include the oil temperature reading which takes away all my sense of security anyway ("why did the oil temp increase by 2 degrees in the last 10 seconds?" or "shouldn't the oil temperature be a couple of degrees higher than this after this amount of driving?" )

I understand your position on this matter, it's certainly very interesting, ... if I were you (+ 6R WRC) I also wanted to have this reading available in a more detailed and quick way.

I think all VW Group cars that have been fitted with an analog sort of way of displaying the engine coolant temperature have been suing this method from before 2000, it is slightly annoying but it is only intended as an indication of engine coolant temperature - okay the moving needle display is being supplied with a digital signal instead of an infinitely variable DC signal.

Generally I find that it works okay for what it needs to, as you do get an indication of it being low when not at working temperature, and being high when above that.

Simply a lot better than not having an engine temperature gauge - like most SEATs have.

Totally agree.

I just got this working in my polo

Thanks for this 6C info , the 6C is still a lemon to be squeezed in this forum (that's the way).
However, 6R is a different platform and obviously such configuration isn't possible. cheba's WRC is a 6R.

I'll try to activate it (off road display) in my Golf MK7.5, I'm almost sure it'll work. http://www.vwwatercooled.com.au/forums/ ... ost1171042

[massimo23]

Hey Ciclo I will loan you my car... I know you would squeeze every bit of lemon out of it
Don't want to mod anything electrical or mech. yet my car still in guarantee.
But I have a few retrofits in mind when time comes.

About off-road display, I do not have navi system installed but as you can see it still works. I just also checked my FEC codes on Infotainment system and I don't have code 00060400, which is supposedly for SportHMI, active. I do however have the following adaption activated: Car_Function_Adaptations_Gen2: menu_display_SportHMI: activated.