Topgun433

It was around 3 weeks ago they had the car in surely a potential air lock would have shown up sooner. It’s been running fine up and down the motorway since before then with no issues

Before the issue first started it was at a local Škoda specialist who did a coolant change on the car and supposedly bled it to Škoda specs. The oil temps if I remember correctly were between 105-108. As I don’t have access to vcds or obd11 to try and purge the air out can the car be ran up to temperature with the expansion bottle cap off to allow the air to escape that way ?

Would the best way of moving forward with sorting the issue out is flush the heater matrix out first ? Do you recommend testing the temperature sensor before removing it ? Am I right in thinking it’s located on the side of the block underneath the air box ?

If I remember correctly when scrolling through the displays the oil temperatures were around 110ish. I’m afraid I don’t have access to vcds I do have an obd reader but I’m not sure if this would give an engine temperature read out. Something I should have added to my issue is that the car heaters have not been getting warm they have been stone cold (I did send it to a local Škoda specialist and they did a coolant flush and change a few months ago) I pressurised the system the weekend after changing the water pump and it did start getting warm but when the temperature went awol the heating went stone cold again. I’m not sure if the issues are linked at all or separate. Where is the engine temperature sensor and is there a way to test it to rule it out ?

Hi JR sorry I thought my profile would show my car information (noobie error). The car is a mk3 Octavia VRs 2.0l diesel 4x4 2016 model. The car normally warms up to its normal running temperature and stays at 90 on the temperature gauge. But suddenly out of nowhere on a run it shot up to 130. Ever since this incident it’s not reading normal temperate readings now as in if driving around normally and sitting in traffic where it should climb it stays at 90 but put the engine under load and it’s goes sky high. I’m just concerned if it is actually overheating or not and if this is a much bigger issue elsewhere.

Hi guys really need your help with an issue I’m having with my car. I was driving down the motorway last Friday and the temperature suddenly flew up into the red when at 70 with no prior warning then when I slowed down ready to pull off when slowing down the temperature started dropping as fast as it went up. When not under any load on the engine the car maintains its normal running temperature with no issues. When you accelerate hard or maintain motorway speeds the temperature flies up. When I got home and the car cooled down the next day I checked the water and it’s not lost any water so its appears to have no overheated. I’ve not noticed any coolant leaks as it’s never lost water but it’s been pressure tested and that’s holding pressure. I’ve heard of issues with the electronic water pumps being problematic so I’ve swapped the water pump for a new one the weekend and this has still not solved the issue. Does anyone have any ideas what could be causing the issue ?