Peugeot 206 transmission AL4 overhating / strange behaviour

[dum]

Dear people, I'm facing following problem: when I'm driving for the long distance, the AT AL4 starts to switch between gears on very high RPMs - around 5000 instead of 2800. This is happening only after at least 80 kilometers of continuous run, so I can never show this to my mechanics... Not long ago I have bought ELM327 OBD2 sensor (do it if you are doubting!) and now I know that this is happening when AT fluid temerature rises close to 120 C. On temperatures below 100 C it behaves ok. So, what could be the solution? Thanks a lot in advance.

[lcwin]

You may hv a clogged AT oil cooler or maybe low AT oil.

[dum]

Thank you. May it be AT solenoids issue?

[Sam-Kelly95]

Sorry to jump onto an old thread but did you manage to get this sorted? I am having the same issue... Also, do you have a link to the ELM327 OBD2 sensor you used? I cannot seem to find it online.

[mickthemaverick]

I think he meant scanner when he said sensor. If you put 'ELM327 OBD2' into ebay you will get hundreds of options.

[Sam-Kelly95]

I think he meant scanner when he said sensor. If you put 'ELM327 OBD2' into ebay you will get hundreds of options.

Thanks Mickthemaverick- I assumed scanner also... I have had a quick browse on Ebay and there are LOTS of options but none of them specify the ability to read Transmission Oil Temperature. There are also options for a mobile app version or a PC/ Desktop version, I seem to think that a PC version would be more robust/ have more available options but I am not sure?

I will include below a link to a scanner I have seen which may be worth a try? I have had confirmation from the supplier that it will communicate with a 2007 Peugeot 207cc unless I am missing something, this seems ok?

https://www.ebay.co.uk/itm/256754936827

Apologies- the above attached is not compatible it turns out... Does anyone have any recommended scanners to view transmission oil temperature?