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MAF breaking down..?

mbuontempo

mbuontempo

New member
Hi all
Hoping for a bit of advice - just had a very minor service (oil & filter replacement etc) at a local independent Porsche specialist & they have advised that the MAF is starting to play up. I bought the car from an OPC & it is still under warranty until May '10 - is this something that would normally be covered under the terms of a used car warranty or would it get "lumped" together with tyres, exhaust etc? Would also appreciate another explanation of what the MAF does - is this why there is sometimes a very slight pause when accelerating hard? & what happens if it is not replaced?
Many Thanks
 
I would have thought it would be covered under the Porsche Warranty, but I would also be worried that you have voided it by taking it to an indy for a service.....

The Mass Air Flow sensor measures the volume of air going in to the engine, and uses the measurement as part of the data to adjust the air/fuel mix. The symptoms you describe are typical of a failing MAF sensor. Generally speaking, if you have done more than 50,000 miles then the MAF is living on borrowed time.
 
Generally speaking, if you have done more than 50,000 miles then the MAF is living on borrowed time.
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Blimey, that's progress! The 944 MAFs are becoming a regular issue, but that's after over 20 years and on average well over 100K miles. If things keep progressing at this rate a new MAF will be part of the annual service. [&o]
 
I would have thought it would be covered under the Porsche Warranty, but I would also be worried that you have voided it by taking it to an indy for a service.....
Click to expand...

I thought that the EU had made a directive preventing manufacturers from insisting that service must be performed at 'approved' centres (otherwise creating a monopoly) and that as long as original parts were used all was OK.
Have I got that wrong?

Dave Jones
 
I believe that refers to the manufacturers warranty. Does anyone have a policy booklet they check? Also if anyone could scan it for me to add to the FAQ page it would be really useful. http://www.porscheclubgbforum.com/tm.asp?m=232940
 
Many thanks for the replies, I'll try my luck for a new MAF at the OPC.
To be honest I don't think they will notice that the car has been worked on by anyone else - I took it back for a very minor coolant leak last summer & they replaced all the radiators - it turned out to be the coolant reservoir cap that needed replacing to the latest type!

 
They use a standard Bosch part common to many cars so shop around. A friend of mine with a Boxster got a quote from the OPC which was ridiculous. He sourced the part himself, it took about 20 minutes to replace and he saved himself a bit of beer money.
 
Here are the numbers for the 3 types of MAF used on the 996:

Porsche Number - Bosch Number
996.606.123.00 - 0280 217 007
996.606.124.00 - 0280 218 009
986.606.125.01 - 0280 218 055
 
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