@moranor - What symptoms did you have? Mine are on cold starts the car would idle at 1000rpm for +- 20sec and the idle will drop to 500rpm and the car would go into limp mode, and it's not drive-able. When I switch the car off and start it again and at the same time keep the revs up until it gets to operating temperature then the car will be fine.
I think before buying a new MAF i need to take the whole intake boot and inspect it, seeing that the car has done almost 300 000km.