KhalidQasrawi

Thanks for the reply @Sec8200. Strangely, the fault has vanished. I wait in fear for its return. Hopefully a dodgy connection that has reseated itself!

Bump!?

My check engine light came on - solid amber, looks like an engine symbol , manual says it's emissions. I didn't notice a loss of power but not driving it hard anyway. I attached my Car Scanner Pro app, scanned and got the attached result. P26F8 and 29353. My car is 2016 Octavia 2.0 TDi CRMB engine. I cleared the fault and went for a test drive. It's back but pending now. I've driving the car several thousand miles since the date of the error on the report (16-Mar). The Internet says here and here that this is a failed coolant pump 3 which I believe is V488 circuit. Could anyone confirm that this is the for heating the cabin and if I'll be okay driving with it for a while. Change myself or take to the garage? Thoughts?

Thanks. How would I get hold of that update?

Thanks very much for the tips. Thankfully I have managed to recover the situation. Not sure if that's a good lesson or a bad lesson about fiddling with coding. Losing navigation was never going to be the end of the world as we know it. For anyone else that stops by, the problem was with the "Show offroad screen" app in the Car Scanner Pro app. I had enabled it. It seemed to work apart from having the tilt always zero (I assume due to not having the sensor. The navigation was also functional at this point. I then reverted it by setting it to disabled. That seems to be when the navigation failed. In trying to unpick things, I went back to the original time when I set it in the coding history (shown in the attachment), selected the 3 items and restored to the original state. The navigation and traffic features were immediately cured. I'm hoping that it stays that way as curiously, the failure before happened mid drive. As the fine folks who replied implied, it was nothing to do with the update to the map data. Phew!

Thanks very much for the replies. Sounds like I should not have been mucking about with that tool. I suppose I should say what happened. I decide it was time for me to get more self sufficient. I did my first oil + oil filter change. That seemed like a success. Now I'm thinking I ought to add changing the fuel filter to my new skills. So to do the fuel filter the pukka way, it seems you want to run the pump after changing it to prime it before starting the engine. That's when I got access to the Car Scanner Pro - cheapest way to get access to my car's software. Then I noticed I could use the same software to set features like the thing that always bugged me about the car, the wipers sticking half way across the screen if I was turned the engine off mid wipe. So I started fiddling. Then I upgraded the map and after that... no navigation. So, thanks for the advice, I will do a deep dive into the Car Scanner Pro software. It looks like it stores the pre change codes. Where is a good (and safe) place to learn how coding works? As an aside btw, I met up with some friends this weekend on a campsite in Cornwall. 2 Mk2 Octavias, 2 Mk3 Octavias, 2 Superbes and one honorary Golf! Popular cars with my friends these! Thanks again. I'll report back.

2016 Octavia Mk3 Estate SE L Sad news. I tried to upgrade my maps to the latest version, something I've done a few times before. It seemed to work. Started navigating a trip yesterday morning. After a stop start, there is no longer any access to the Satnav or Traffic menus. When I press the nav button, I get a popup: "Navigation: Function not supported.". When I press the button for Traffic, nothing happends. Also, no compass on the driver display. Same symptoms when I reverted to a backup of the map data. This happens even when I don't have the map SD card inserted. I have to admit that I was poking around with Car Scanner Pro but only adding in things like wiper blade park etc. Help needed!