Digital dash historical data loss.

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Hi all.
In recent weeks I've had a few occasions when the car appears to have lost all trip/mileage information. When you start everything is at 0 once again. Obviously this information is stored somewhere between trips. Not sure if it's in the ECU or elsewhere. As for if it's a battery backed device I've no idea. Had a new car battery fitted last year so if it relies on that I don't think it would be the root cause. Has anyone else experienced this phenomenon. Is it a software issue? Very annoying to lose all your data on mpg etc.

Any feedback appreciated
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[cairus]

What year of manufacture? What does the error log say? Hardware number from the virtual cockpit? So you only lose all 3 driving data?

 

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What year of manufacture? What does the error log say? Hardware number from the virtual cockpit? So you only lose all 3 driving data?

It's a pre-facelift 2020 registered Ateca. Not sure how to check the error log or get the virtual cockpit hardware number. Yes, all 'changing data' appears to have gone (Except of course the overall mileage). All the other stuff (like MPG since last trip/fuel refill etc) is basically reset.
Any advice appreciated.

 

[cairus]

The picture shows the multimedia system. For the speedometer you need a diagnostic tool. Are the values in the speedometer and radio set to 0?

The Car is Produced in the year 2020? Why you have a Navi Mal from 2018?

 

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The car was probably manufactured in 2019 at a guess. The NAV and other software has never had any updates as far as I'm aware. In the UK it seems that dealers don't make these sorts of updates unless pressured by customers, and to be honest most of them don't seem to know how to do it!

I was just hoping someone may have seen this before and had an RCA (root cause analysis) as to why it happens. If it's something I can resolve myself then great as the dealer invariably will do nothing when an issue gets reported. (at least that's my general experience).

Sadly I only have a cheap ODBC reader with a small LCD screen so it can pull/clear logged fault codes but that's about it. I would have no idea how to check the things you are describing.

thanks anyway.

 

[cairus]

re the values in the speedometer and radio set to 0?

 

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radio un-affacted. All trip counters however were reset.

 

[cairus]

That means that in the virtual cockpit the values "from start", "long-term" and "from refueling" are set to 0 but you have values displayed on the radio?

 

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That means that in the virtual cockpit the values "from start", "long-term" and "from refueling" are set to 0 but you have values displayed on the radio?

Correct. So after it happened for example my fuel tank was about 3/4 full but the distance travelled since last ref-fuelling was now set to 0. The radio appears to be unaffected. Only data in the cockpit display impacted.

 

[cairus]

If you say the vehicle is probably a 2019 model, it is one of the first Virtual Cockpits. These were not technological marvels. Please tell me the VIN so I can see more details. It probably has the part number 5F0920790 with a SW 16XX. You can try to do an update, but I think the memory is defective.

 

[stu_m]

I have had this happen on numerous occasions on mine and in the last week it has happened 3 or 4 times!

The virtual cockpit also resets back to factory view too @East Yorkshire Retrofits are you aware of any issues with this?

 

[stu_m]

Also just found this on the tarraco forums

Speedo and trip resetting itself

www.tarracoforums.co.uk

 

[Tell]

The clock one on that thread is where the unit gets confused with the gmt / bst + / -1 so you toggle between taking the time off satellite or manually. Seat instructed dealers to set them to manual to stop it happening. Ours on the Arona I toggle back to on. Being garaged it does loose track of the time and does the plus / minus. You reboot the unit to get it back... that might be a red herring but that's the changing time one mentioned on that link.

I can't say we have had an issue with the Aronas trip information. Question is whether it's the infotainment unit sending the data out. Our firmware is the 5 series but not the final release. 516. We got the digital dash on that. Your could try upgrading the firmware to 516 if it coming from within the infotainment unit ?. You could try putting the cars clock on manual time setting if there is some weird thing happening. They might have corrected how the clock works in that.

I can't really say where the data gets put but obviously it's getting corrupted. The only corruption I know about is the satnav time one... anyhow we take the time off the satellite. When this has come up before (@Loadmaster748 ) on the changing time business I said just toggle where it takes the time from.... thats if that's the corruption.

 

[East Yorkshire Retrofits]

I have had this happen on numerous occasions on mine and in the last week it has happened 3 or 4 times!

The virtual cockpit also resets back to factory view too @East Yorkshire Retrofits are you aware of any issues with this?

Some cars have updates available to fix this but I don't think yours will be one of them.

If you can check the instrument cluster software info via diagnostics then we'll know for sure

 

[stu_m]

Some cars have updates available to fix this but I don't think yours will be one of them.

If you can check the instrument cluster software info via diagnostics then we'll know for sure

I will have to plug in vcds when I get 5 mins and have a look

Is this something you can update? And is so at what cost?

 

[stu_m]

Just realised I have a full scan on my PC!

Does this give you the info?

Address 17: Instruments (J285) Labels:| 5G0-920-XXX-17.clb-SRI3
Part No SW: 5F0 920 790 B HW: 5F0 920 790 B
Component: KOMBI 504 4190
Coding: 24A4021A6F8806000188620B1001000080000000
Shop #: WSC 00033 790 00063
ASAM Dataset: EV_DashBoardVDDMQBA0 001042
ROD: EV_DashBoardVDDMQBA0_001_VW37.rod
VCID: 2809FE78127835AA473-807C

 

[cairus]

You already have an Index B virtual cockpit. It's strange that there is no SW version in your VCD scan. I'd almost suspect a defective EEPROM. Hopefully it never dies so that the WFS is no longer available.

 

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I don't really have a proper scan tool sadly. Was thinking of just getting the basic £50 ODBEleven dongle which I believe can at least do a full scan in a similar way to VCDS. I know there are a ton of knock off VCDS dongles and hacked software out there but i'd probably steer clear of most of them to be honest unless anyone has any specific recommendations. At least then I can pull proper vehicle data out.

 

[Tell]

I don't really have a proper scan tool sadly. Was thinking of just getting the basic £50 ODBEleven dongle which I believe can at least do a full scan in a similar way to VCDS. I know there are a ton of knock off VCDS dongles and hacked software out there but i'd probably steer clear of most of them to be honest unless anyone has any specific recommendations. At least then I can pull proper vehicle data out.

Without the Obdeleven Pro license it will do the normal scans. The apps which are "micropayment" ones you can do certain things but I discourage their use. They are black box solutions which if they go wrong you can leave the cars coding in a problem state. Micropayment apps are like Excel macros which go off and trigger a sequence of commands. Coding the commands are under your control so you can reverse what you have done. That's the Pro license. They are really toggles that you change. It keeps a record of what you have changed and you just undo them. The micropayment apps run a macros to do the toggling but if the toggles are wrong and changing back is wrong... it was put in by Obdeleven to cover the other one click app market so it does both. You can always not renew the Pro license after doing any coding you want to do.

Anyhow I'm wondering whether if it's a secondhand car or not a dealer may not have done an update to one of the modules if an issue had been found, That's the problem of getting a car serviced outside the dealer network issues won't be fixed. Generally a dealer will say there is some coding that needs to be changed, sign here or not on the annual service. If it isn't a good dealer they may not pick up on the work that needs to be done. So that fault that has come up on the dealer network and fixed by reprogramming the coding or firmware update in the module gets missed.

The car runs a distributed control system. Each unit runs its small logic system. It's those that coders reprogram or the firmware if the lot gets changed in the device. Our 70s computer science lecture got excited about distributed control systems... well it was the school of applied sciences we went to for these lectures. Parallel processing was another one he got excited about... and Arcnet. . Lexicon analysis another ... now you have all of it.

I'd report the issue to the dealer and see whether they know about it or try a different dealer. Their tech guru is suppose to be up to speed on known issues if you don't make any progress. Clearly it's a fault.

 

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No worries. I may get the ODBEleven Scanner just to have my own tool for pulling full scans. It's only £50 for the bare tool with no points add-ons s not a bank breaker. Not planning on any mods as the car has most stuff already but will be useful if i need to demonstrate any faults. The car is currently on a servicing plan until June 2026 which includes warranty and breakdown. It's only ever been dealer serviced. I purchased it at 11 months old (it was a ex dealer principal vehicle). It's due a a service in a couple of months anyhow. I'll mention it then and see what they say. My experience over the last 20 years is most dealers rarely do firmware/software related stuff unless forced or you turn up with a ton on your own research stating it needs doing.

thanks for the info.