Replacing the MAF

2.7 V6 30v biturbo - 251bhp
2.7 V6 30v biturbo - 261bhp
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b14
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Replacing the MAF

Post by b14 » Thu Jul 10, 2008 10:23 am

Hi all,

Can anyone point me toward a "how to" for replacing the MAF? Ran VAG-COM last night and says "MAF - signal too low". Reckon it is dead.

Cheers all

S4
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RE: Replacing the MAF

Post by S4 » Thu Jul 10, 2008 11:05 am

Yes you purchase a new unit..... only get it from the main dealer as it will have a 2 year warranty on it. Ask for an exchange unit, give them the old one.


Darren

b14
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RE: Replacing the MAF

Post by b14 » Thu Jul 10, 2008 11:10 am

Thanks S4, thats a good tip.

Literally looking for a step by step guide to literally changing the old one out?

am8631
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RE: Replacing the MAF

Post by am8631 » Thu Jul 10, 2008 12:45 pm

its really easy to do. Just undo the jubilee clips from either side, disconnect the wire and install the new one. If you dont know where it is its the unit between the airbox and the accordian hose.

tartan_rob
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RE: Replacing the MAF

Post by tartan_rob » Thu Jul 10, 2008 1:29 pm

In fairness, it is so simple, if you can't identify it - dare I say...you shouldn't be doing it?

I found Audi really good and when i went in, they offered a mechanic to pop out and do it for me.
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b14
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RE: Replacing the MAF

Post by b14 » Thu Jul 10, 2008 2:14 pm

[quote="Tartan_Rob"]In fairness, it is so simple, if you can't identify it - dare I say...you shouldn't be doing it?
[quote]

Not sure about that, I've restored classic cars before, just haven't got the hang of anything that has turbo chargers or electronics! The most complex wiring I deal with is voltage regulators for dynamos...

Not familiar with the S4 really, so when VAG-COM says MAF is shot, I might need a little pointer as to where to start.

Cheers all, I'll get down to Audi Docklands for an exchange unit.

Mikey-S
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RE: Replacing the MAF

Post by Mikey-S » Thu Jul 10, 2008 4:11 pm

Maybe you should erase the fault first before buying a new MAF. If in the past the MAF has been disconnected, maybe for some fault diagnosis, then that would leave a similar fault code in the ECU. Erase the fault, run it for a bit and if it comes back then buy one...

Mike

am8631
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RE: Replacing the MAF

Post by am8631 » Thu Jul 10, 2008 5:21 pm

Image

the maf is under the left hand side engine cover, hope that helps a bit.

tartan_rob
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RE: Replacing the MAF

Post by tartan_rob » Thu Jul 10, 2008 8:37 pm

b14 - sorry if I was taken wrong. I wasn't having a go. Really what I was trying to infer is that if you don't know what you were doing, perhaps best left to someone that does.....but I was assuming you did not know one end of a spanner from another....sorry.

In all honesty though, with your experience, it is dead easy.
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SonicDeathMonkey
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RE: Replacing the MAF

Post by SonicDeathMonkey » Thu Jul 10, 2008 8:43 pm

I am a clown on the spanners, but even I managed to replace the MAF

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dubwhizz
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Re: RE: Replacing the MAF

Post by dubwhizz » Fri Jul 11, 2008 8:55 am

SonicDeathMonkey wrote:I am a clown on the spanners, but even I managed to replace the MAF
what, like a real clown? baggy trousers? big shoes? painted face? that'd be funny. time for a youtube video!!!

S4
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RE: Re: RE: Replacing the MAF

Post by S4 » Fri Jul 11, 2008 11:17 am

wow a picture of a car with Engine covers... I have forgot what they looked like or where mine are!



Darren

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Post by Bluebrakes » Fri Jul 11, 2008 12:25 pm

It really isn't that difficult as mentioned earlier.

1. Take the cover off as shown in the earlier post. Just pull it off upwards. Only clips.

2. Where the large air intake is from the air box, you'll see a round tube with a connector on it (Under where the cover was of course).
This is the MAF sensor.

3. Disconnect plug. You may need to use a screwdriver to push tab in.

4. Remove the maf sensor

5. Buy maf sensor if you get an exchange unit and give them your old one you can save yourself £20 i think

6. Install and reset codes on Vagcom
Why do they call it rush hour when nothing moves!?!

Standard S4, but not for long.

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