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D2 - Engine Bay Everything under the bonnet

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  #1  
Old 25th January 2017, 09:42 PM
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RS6 RS6 is offline
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Yeah maf is very important, on some of theprevious cars i've had on rolling road days, power figures are down, change the maf & boom! back into the land of responsiveness!
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Old 26th January 2017, 09:08 AM
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Isopropyl alcohol is said to work. Back when we were all on Tyresmoke forums we used to fill a zip bag with some Isopropyl, dip just the MAF element in it overnight, let it dry out for a few hours. I don't know how much that helped.

Ideally I would want to scrub the metal element with a tiny glass fibre brush to remove any surface oxidation/deposits, but there is not much room to get in there.
Of course if some other part of the MAF fails then the above is not going to help.
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Old 26th January 2017, 09:10 AM
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I tend to view the MAF like the battery; once it starts to go wrong you "might" have some luck with reinvigorating it, but best to just fit a good-quality new one.
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Old 26th January 2017, 08:31 PM
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My understanding is that a bad MAF can knacker the gearbox
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Old 28th January 2017, 10:23 AM
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Quote:
Originally Posted by tonupkid View Post
My understanding is that a bad MAF can knacker the gearbox
It certainly contributed to mine, although my gearbox failed at 118k which is within the levels they tend to go at anyway, but I do believe that the MAF fault hastened it as it feeds duff information to the TCU which then seems to cause failure sooner, its one of the reasons I went out and got VAGcom so that I could check it regularly
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Old 28th January 2017, 11:43 AM
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It wouldn't surprise me.
Once the ECU recognises the MAF is gone and gives the fault lights, the TCU seems to go into a default shift mode - if anything the gearbox shifts softer I reckon, and I drove it gently anyway knowing it wasn't working at its optimum.

I have my own ideas on why these gearboxes fail, but I won't start that debate here!
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Old 28th January 2017, 12:14 PM
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Quote:
Originally Posted by 27litres View Post
It wouldn't surprise me.
Once the ECU recognises the MAF is gone and gives the fault lights, the TCU seems to go into a default shift mode - if anything the gearbox shifts softer I reckon, and I drove it gently anyway knowing it wasn't working at its optimum.

I have my own ideas on why these gearboxes fail, but I won't start that debate here!
Why not?! everyone else does! ...and its a subject of huge concern to all D2 5HP19A owners as its often a do or die issue. Its been covered comprehensively in the transmission thread but any other contributions would be read avidly. Seems un-Australian to hold back
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