8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHMAF breaking down..?
Leading reported evidence
Replace radiators - it turned out
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
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!
Leading evidence: 'Replace radiators - it turned out' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'coolant reservoir cap' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Adjust air/fuel mix' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
Here are the numbers for the 3 types of MAF used on the 996:
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
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.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause · Original poster
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!
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
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.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
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!
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
coolant reservoir cap
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause · Original poster
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!
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Porsche Club GB: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T220748Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
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.
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 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
This is a source reference. Confirm exact model applicability in the original material.
