When Manufacturers come up with Extortionate prices like these and refuse to sell a small part that you require, look at other models in the range. On this occasion, Just think Almera and you can buy an AFM for as little as £27.00 + vat Exchange from Bosch. ( might be a little more with price increases etc )

You will have to swap the Air temperature sensor over as the Almera doesn't have one but the terminals are there to solder to.

We have sold 100,s or may now be into 1000,s of air flow sensors and I always buy the cheapest version as long as it has the correct fitting, I know Bosch state that the sensors are metered to the pipe size etc and should not be swapped but I have not had 1 single complaint of warning lights coming on, lacking power or MOT emissions failure, Which If there was a considerable difference in these sensors then I am sure that we would have some complaints.

I have also seen and tried several versions of Aftermarket sensors and never yet seen one that works properly.