Hi Has anyone managed to enable the oil temperature reading on this small black screen so that it shows the real values in a 2016 Astra K 1.4 turbo 150 hp?

I have been unable to do it. I know somone that done it but using the data from transmission oil temp sensor.

Could you tell me how to do this? I'm considering this modification.

23 hours ago, Enterlan said:

Hi Has anyone managed to enable the oil temperature reading on this small black screen so that it shows the real values in a 2016 Astra K 1.4 turbo 150 hp?

Is that a non-HMI radio by chance?

12 hours ago, Enterlan said:

Could you tell me how to do this? I'm considering this modification.

I don’t know how to do it I’m afraid. Person who did it, I’ve found it on Russian website, can’t remember what it’s calls unfortunately

Ok, I saw that someone tried to install sensors but I don't know how it ended, I know that someone on a Polish forum boasts about doing it but I don't know how

There's no need to install additional sensors. Oil temperature is calculated by the engine control unit and transmitted to the gauges. I did this mod in a 1.4t Astra K, and it works.

Could you please describe how to do this? Does it require ECU programming because I have a map already made?

On 3/4/2026 at 3:19 PM, zamich85 said:

There's no need to install additional sensors. Oil temperature is calculated by the engine control unit and transmitted to the gauges. I did this mod in a 1.4t Astra K, and it works.

Do you mind sharing how? I have currently got an ESP32 reading the calculated temp from the ECM and replaying it the the cluster, it works on the bench but it's not pretty.

Need to test on the car but if it can just be coded even better - from my research it seems it's just masked by the BCM as the IPC get's the info?

3 hours ago, Vauxhall_Mark said:

Do you mind sharing how? I have currently got an ESP32 reading the calculated temp from the ECM and replaying it the the cluster, it works on the bench but it's not pretty.

Need to test on the car but if it can just be coded even better - from my research it seems it's just masked by the BCM as the IPC get's the info?

I can check it out at my place if you tell me exactly what to do. I have my BCM files, so I can send them to you.