MAF Sensor

[Heat Seeking Missile]

I fitted a Pipercross panel filter to my S2 on Friday night, when I took the top of the airbox off, I noticed the mesh for the MAF sensor looked like it had seen better days, what do you think?




I'm new to turbocharged petrol cars and MAF sensors, so I dont know if this is acceptable or in good working condition. The car seems to be running absolutely spot on for now, but I dont fancy being left in the lurch with winter approaching.

Thanks,

Mark

[valjo]

what kind of air filter do you have?!
i saw many maf-s but none with damage like that!!

[Heat Seeking Missile]

Standard ABY airbox as far as I know. Thats just the top half of it.

Mark

[Jamo]

if your daring remove it

[HPmuirt]

if your daring remove it

Well you say that but many of us are running RS2 MAF's which have much larger holes than that mesh. The only thing my RS2 mesh will stop are golf balls

Cheers n

Si

[Heat Seeking Missile]

if your daring remove it

The MAF or the whole airbox? Is there something I need to know about?

Mark

[Jamo]

Well you say that but many of us are running RS2 MAF's which have much larger holes than that mesh. The only thing my RS2 mesh will stop are golf balls

Cheers n

Si

True but IMO the purpose of the mesh on that side of the mesh is disrupt the flow of any air travelling in the reverse direction on gear change to reduce the chance of the maf wire riping off

[A80Avant]

it is also there to limit any turbulance of incoming air towards the sensor

[Knight Rider S4]

First thing i would do is get it off before you get bits of wire in the turbo get new one from vagparts.looks like someone failed to get off the mesh off at some point as that damage looks man made

[S2central.net]

Those meshes are there primarily to 'straighten out' or 'remove turbulence' from the air passing over the hotwire inside the MAF. They also provide a good level of physical protection to the hotwire.

I've never seen objective measurements but the RS2 MAF has a much less restrictive screen which in my view is only there to stop accidental damage to the hotwire should the odd golfball, gofer or garbage get sucked into your airbox.

You can of course run without the screens - I would be worried about broken shards of the screens making their way south and into the turbo and engine internals - na$ty.

Paul

[martinjs]

I'd bin that screen and look if the one on the other end is ok and swap it over.

[Heat Seeking Missile]

Oh right, there's 2 mesh's then? I didn't have the other end off the sensor so I didn't know. Can you buy the mesh separately?

I dread to think how long thats been like that, and hope it hasn't caused any serious damage.

Mark

[Heat Seeking Missile]

Right, I've removed the mesh now. Can this be replaced on its own or does it have to be a whole new sensor?

Mark

[newsh]

My mesh was like that, I took it out several years ago, no problems.

[Heat Seeking Missile]

Have you not replaced it at all? I may just leave mine if thats the case.

Mark