One assumes your car has the AL4 gearbox.
Look for an automatic transmission repair shop that has the Clip software and repairs French transmissions like the AL4. With a bit of luck it will only need a fluid change and a reset. If it needs the two EMV valves it should be appx £500 where they will change the fluid and do the reset anyway so the fluid will last another 32,000 miles. With any Renault/Citroen /Peugeot you need to look up the forums for your car and go onto YouTube and check out videos on problems with your make and model. You will lean a lot !
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