token_454

And what was the outside temperature? This problem never occurs in winter days when we have outside temperatures like 10 Celsius and lower. I can drive then 240 km/h and everything is fine. This occurs when we have 30 Celsius on the highway.

Hi guys,in the meantime I found a similar situation like mine on the german skoda forum. Underneath are the experience from a person that also contacted skoda to this topic. This is his experience: I have a 2-liter TDI with 150 hp and DSG, and when driving at speeds over 200 km/h, the oil temperature already exceeds 130°C after just 10 minutes. When towing a 1,800 kg caravan in the mountains, the oil temperature often climbs above 135°C. That seemed too high to me. The workshop just shrugs and can’t find any cause. Therefore, I contacted Skoda and received the following reply: Thank you for your message. Under normal operating conditions, the oil temperature is usually between 90°C and 110°C; under load, we allow oil temperatures of up to 150°C. Load means: High ambient temperatures (above 30°C) Extreme acceleration Driving with a trailer Driving with a high payload Long uphill drives One or more of these factors can lead to a higher oil temperature. The TSI and TDI engines from ŠKODA are designed so that a continuous engine oil temperature of 150°C is not exceeded. However, modern oils also allow short-term peak temperatures of up to 170°C in extreme situations (unlikely in Central Europe). It is important to always ensure there is enough oil in the engine. For all questions regarding ŠKODA, we are of course at your disposal in addition to our authorized dealerships. Kind regards, Your ŠKODA Customer Service The link to the topic is here, but everything is in german: https://www.skodacommunity.de/threads/superb-iii-ahk-nachgeruestet-125-c-oel-oel-temperatur-senken.133719/page-3 From the experience from the tipps i will first try to build in a bigger oil cooler and then also maybe changing a coolant radiator as you guys write above. I have a manual car and not a DSG.

Hello everyone, here’s an update on this topic. I also replaced the thermostat, but that didn’t change the behavior of the problem. I’m starting to think that the issue might be related to the 4x4 (all-wheel drive).Maybe the weight of the car and the 4x4 system could be causing the 150 PS engine to overheat when driving over 200 km/h on warm days. Maybe thats a general problem but most people doesn‘t notice because they not drive so fast.

Hi, thanks for sharing. Can you share the manual here or in private message maybe?

But should the ECU use both temperature sensors to control the radiator fan, or only the G62? In the attachment you’ll find a CSV file with the measurements I took. In the table you can see that when the coolant temperature reaches about 110 °C, the cooling fan only runs at around 10–15%. At 110 °C the coolant gauge on the dashboard already shows a value above 90 °C. LOG-01-IDE00025_&7.CSV

Thanks for your effort 👍

But in my case, if the sensor were not physically installed, then the value for G83 should change and not always stay fixed at 88°C, assuming the ECU is just calculating this value. That means there must actually be a physical G83 sensor 😅

The pump cannot be stuck, because I installed a non-electric pump. These non-electric pumps were used in older cars, such as 2010 VW models. Even before I replaced the pump, the car already had the same temperature problem. This means that changing the pump did not change the behavior 😐

My first idea was to replace the sensor myself, but I couldn’t find its exact location. In the end, I will have to go to a repair shop and let them replace the sensor. I hope this will solve the issue. If not, I would consider replacing the thermostat, since it might be faulty and not opening correctly.

In the picture below, I can select the sensor “Coolant temperature sensor at radiator output”. That should be the G83 sensor. What do you mean by replacing the G62 sensor with a genuine sensor?

The sensor on the cylinder head is G62. I found this sensor by disconnecting the wires and checking in VCDS, which then showed a G62 error. However, I cannot find the G83 sensor. In the following link, I uploaded a video filmed from the bottom of my car where the coolant pipes are visible. I can not see any sensor. StreamableWatch unnamed | Streamable

Hi, the oil temperature is 125 degrees. You see in the below picture in blue circle that the cooling temperature has pass 90 degrees. It goes further if i press the gas pedal

Hi, at the beginning I also thought that the water pump was stuck. I replaced the water pump and installed a non-electric one, but this didn’t change the behavior. Another possible cause could be the thermostat, but I think I would notice that at lower speeds if it wasn’t working properly. The car doesn’t have any other issues. It also has enough coolant, the level stays constant, and there are no leaks.

Hi, the coolant temperature rises above 110°C, depending on how much I accelerate and press the gas pedal. This mostly happens in summer temperatures, at speeds between 180–200 km/h, or when driving around 150 km/h on a steep highway section. When I reduce the speed to under 130 km/h, the temperature goes back to normal. I tracked this with VCDS while driving. I also noticed that the cooling fan activates too late. The fan only goes to 100% once the temperature reaches 110°C. Mostly the cooling fan is on 10.2%. The car doesn’t seem to have the temperature sensor… hmm, that’s a good question. 😅

Hi, thanks for your reply. I have the 2.0 TDI EA288 engine. I also read all the forum topics about the G83, but I still couldn’t find the sensor. I checked under the air filter box as well, but I didn’t see any sensor connected to the coolant pipe. I also took a picture from under the air filter box.

Hello everyone, At the moment, I have an issue with my Skoda Superb (year 2018). At high speeds (around 180–200 km/h) or when driving on steep routes, the coolant temperature on the dashboard rises above 90°C. As soon as I reduce the speed, the coolant temperature drops back to 90°C. With VCDS, I found out that the G83 temperature sensor is stuck at 88°C. This means that even when I start the car cold, the sensor already shows 88°C. As a result, the fan doesn’t switch on in time. Does anyone know where I can find the G83 coolant temperature sensor? I checked under the car near the radiator but couldn’t locate it. The other coolant sensor, G62, is working properly. Best regards