I've had my 1.2 110ps Fabia for a few weeks now and have noticed that the analogue oil temperature gauge always displays 90 degrees if the engine is running. At the same time the digital display shows what I assume to be the correct temperate (60ish at the start of a journey, 105 after a long run yesterday). I've just been to the dealers to ask about it and I think I've been fobbed off at little; I was told that the analogue display is not accurate and will only display a temperature higher than 90 if there is something wrong with the car, but the digital display is accurate. Can other Fabia owners check of their analogue display shows the correct (or near correct) temperature so I can go back to the dealers armed with some evidence?

I'm guessing that the "analog" display you are referring to is the engine coolant temperature display.

 

As far as I know, while these displays are presented as being analog, they are fed from digital signals and as such will only change position when a bit has changed.

As above, the analogue display is the coolant temp, the digital display is the oil temp. And its normal for them to read different temperatures.

Edited 11 July, 20169 yr by Kenny R

Thanks for the replies, not sure why they couldn't tell me that at the dealership

Thanks for the replies, not sure why they couldn't tell me that at the dealership

Too right, yet another example of main dealer incompetence.

Yes the "analog" is coolant temperature and the "Digital" is oil temperature. It does say in your owners manual

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The coolant temp gauge is pretty useless if you want to know the actual temperature of the coolant due to the software 'frig' factor involved in making it stick at exactly 90 degrees. Its impossible in the real world to have an exact temperature of 90 while using the car. As demonstrated by the oil temperature, put your foot down it starts to go up then cools off again when cruising. The same thing will be happening to the coolant temp just not as dramatic, yet it always sticks to 90.

 

All its there for is to tell you roughly when its up to temperature and if it over heats.

The liquid coolants function is to get to around 90o*C and have the engine and oil up to an efficient operating temp. Oil also being a coolant, then the radiator and fans are keeping the coolant at a temp pretty near to 90o*c to cool the oil as it rises higher. Modern systems do not really have the coolant rising that high, and the coolant temp brings the oil temp back down, ad well as the various types of oil coolers used both for the engine and gearbox oils.