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Porsche Club GB

C4 MAF replacement

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9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHC4 MAF replacement

Leading reported evidence

Use on the c4 is slightly tricky

Performed · outcome unconfirmed

No successful repair reported for this finding.

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0
Unsuccessful attempts
1
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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
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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

The connector used on the C4 is slightly tricky to unclip until you get the knack.

C4 MAF replacement
Frequently discussed work

Replace (y2000 c4) and has anyone

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 · Original poster

does anyone know how much an OPC charge to have the MAF replaced (Y2000 C4) and has anyone replaced this themselves, if so, how much of a job is it?

C4 MAF replacement
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Leading evidence: 'Use on the c4 is slightly tricky' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace (y2000 c4) and has anyone' (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.

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1 matching discussions · 9 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Replace (y2000 c4) and has anyone

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 · Original poster

does anyone know how much an OPC charge to have the MAF replaced (Y2000 C4) and has anyone replaced this themselves, if so, how much of a job is it?

C4 MAF replacement

Replace mass air flow sensor

Suggestion or failed attempt

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 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

What isn't cheap is to replace the MAF.

C4 MAF replacement

Replace with correct part as there are diferences

Suggestion or failed attempt

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 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

And make sure you replace with correct part as there are diferences.

C4 MAF replacement
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace (y2000 c4) and has anyone

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 · Original poster

does anyone know how much an OPC charge to have the MAF replaced (Y2000 C4) and has anyone replaced this themselves, if so, how much of a job is it?

C4 MAF replacement

Replace mass air flow sensor

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

What isn't cheap is to replace the MAF.

C4 MAF replacement

Replace with correct part as there are diferences

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

And make sure you replace with correct part as there are diferences.

C4 MAF replacement

Use on the c4 is slightly tricky

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

The connector used on the C4 is slightly tricky to unclip until you get the knack.

C4 MAF replacement
Coverage and how to read this overview

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.

9 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: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Guys, does anyone know how much an OPC charge to have the MAF replaced (Y2000 C4) and has anyone replaced this themselves, if so, how much of a job is it? Cheers, Neil.

POST 2Original post

Hi BB, It is a five minute job if you have the correct security torx spanner (see below) to remove the two retaining torx screws (fig 4) then unclip the electrical connector and remove the MAF (fig 3). What isn't cheap is to replace the MAF. I regularly remove the MAF give it a squirt of electrical contact cleaner, let it dry and replace it. (you might want to try that before you buy another MAF). And make sure you replace with correct part as there are diferences. (I take no credit for the graphic - lifted it from Renntech site http://www.renntech.org/forums/index.php?showtopic=414&hl=MAF RB

POST 3Original post

Somebody posted last week to say that the MAF is about £170 from Euro Car Parts.

POST 5Original post

£170!! you're kidding, i paid £291 (with the 10% discount off) from an OPC last weekend. Fitted it and turns out the failed MAF has probably killed a lambda sensor too. Its booked into JZM on saturday. Its worth trying the contact cleaner, maplin sell it here http://www.maplin.co.uk/Module.aspx?ModuleNo=28994&criteria=alcohol&doy=6m4 the MAF is a doddle to take out and replace. Taking into consideration the £291 part cost above, the OPC quoted me £550 to replace it for me!!!! what a joke ;-)

POST 6 / ORIGINAL POSTEROriginal post

OPC has confirmed the MAF sensor (or MAFI sensor as they refer to it...) as needing replacing. They've quoted £353.52, (plus £58.16 for the diagnostics) to replace it. This also includes "calibration". Total of £411! Erk! What calibration is required? I believed it was a simple item swap with no setup necessary...? Are they simply trying to justify the huge costs for a 5 minute job, or is there more to it? (they actually want the car ALL DAY in order for the engine to cool down, a they need to fit the new sensor in to a cold not hot engine). Thanks.

POST 7Original post

It really is a 5 minute job. All you need is a T20 Security Torx driver. The connector used on the C4 is slightly tricky to unclip until you get the knack. The DME will automatically recalibrate itself when the new one is fitted, and you can do it with the engine hot or cold. I can't seem to find it in the 996 manual, but the 986 manual makes no mention of any calibration at all. I think they are taking you for a ride. edit: I just did a search on www.eurocarparts.com and the MAF for my 1998 C2 is only £149.00 !!!!!!!!!!!!

POST 8Original post

richard, i've just found the MAF on euro's website, its says "not for M620 version", what does that mean? BB - its a five minute job and the unit calibrates itself, you literally have to undo two screws, pull the old MAF out, stick the new MAF in and do up the two screws. turn the engine on and then it'll calibrate itself. No other adjustment required.

POST 9Original post

M620 is e-gas (fly-by-wire throttle). Early cars like mine are cable throttle. If you need one for a later car phone Euro Car Parts. If they don't have it in stock they will be able to get you one.

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