Hello everyone,
Driving my 2013 Skoda Octavia Elegance TDI yesterday afternoon on motorway, doing 60-70mph cruising along when the centre display between the two main gauges flashed up the red engine overheating warning light, looked at the temperature gauge which was sitting around 120°C so quickly got onto the hard shoulder and brought the car to a halt with engine still running. After about 30 seconds the temp gauge dropped back, not at gradual return but in jerks of what I would compare to 3-5 second intervals if you saw a clock hand, after a few minutes temp was back at 90°C. Sat for a another few minutes before starting my journey again cautiously at the start then did increase speed up to as before 60-70mph. No change in the 90°C until I was nearer the 70mph mark and the needle did slightly go above the 90°C I reduced speed and it dropped back to 90 again almost instantaneously.
When I finished my journey I checked coolant levels, which were fine, the reservoir didn’t even feel warm, checked fan still spinning freely by hand and it was and oil levels fine. I also checked for any P error codes via a hand held tester I have, nothing showing.
Drove car again today from cold and made the same journey at the same speeds 60-70mph cruising along a motorway and no problems. I did however at one stage try to see what happened when I pushed it to 70mph, and I did observe the temp needle rise a little above 90°C but drop again when I decelerated. No prior issues with the temp in the car, so any ideas what this maybe? Is it a possible fault with the temperature monitoring? Any previous experience or thoughts as to what to do next would be gratefully received.
Thanks