1.9 TDI 110 dodgy MAF?

This morning, I pulled out on to a dual-carriageway and while accelerating in 2nd, I suddenly lost all power. The car would still accelerate, but very very slowly. I initally thought it was the old sticking vanes/limp mode problem, so I pulled over, turned it off and restarted, but it was no better. I have unplugged the MAF, which made no difference. It would also accelerate better when I only barely touched the throttle. As soon as I gave it any more throttle, the acceleration became worse.

I have checked the air flow reading of the MAF, and it is reading 55-60g, and the reading never changes, no matter how high the revs.

Am I correct in saying that the MAF has had it? I know the MAF is at least 4 years old, if not older. I can get a new MAF tomorrow, but I just want to confirm that it is the problem before I go out and buy a new one.

Thanks in advance for any advice.

I have taken the MAF off, and the grill is covered in black oily gungy crap. I think its safe to say that its knackered.

New MAF - problem sorted.

Hi. After The initial power loss, it ran okay for 20 minutes, and it then lost all power again. After that, it has no power at any time. No, there was no warning light, nothing. Called out the AA, and he gave me the MAF reading, although he wouldn't guarantee the MAF needed changing. As you can see from the photos, it was obviously covered in dirt and oil, not surprised after 120'000.

Mine went after fitting a pipercross filter.... The MAF is next to the airbox. There is the black air intake hose from the airbox, and the MAF is the component with the plug in it. Disconnect the plug, and release the hose clips either side. I can't remember offhand, but I think the MAF might be secured with a couple if screws?????