Rennlist

Curiosity: what's in that box in the C4 trunk ?

Add to repair workspace

New repair projectOpen repair workspace

Original source

4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCuriosity: what's in that box in the C4 trunk ?

Leading reported evidence

Use venturi tubes

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
Gas tank in a 4 is molded around the front diff, and used venturi tubes to pull from each side.
Original post Read captured discussion
Curiosity: what's in that box in the C4 trunk ?

Read full discussion summary

Leading evidence: 'Use venturi tubes' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'diff too' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Use venturi tubes' (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.

Read captured replies

1 matching discussions · 4 captured posts examined · 0 partial discussions

Compare 1 other evidence results

diff too

Suggestion or failed attempt

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
I always thought it was the diff too.
Original post Read captured discussion
Curiosity: what's in that box in the C4 trunk ?

Frequently discussed actions (1)

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

Use venturi tubes

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
Gas tank in a 4 is molded around the front diff, and used venturi tubes to pull from each side.
Original post Read captured discussion
Curiosity: what's in that box in the C4 trunk ?

Reported and suspected causes (1)

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

diff too

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
I always thought it was the diff too.
Original post Read captured discussion
Curiosity: what's in that box in the C4 trunk ?

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.

4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 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: 20261027T022239Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

*** Newbie Alert *** Just out of curiosity, what is that box in the Carrera 4 trunk ? I thought it was the front wheel drive system but I think it is also present in the GT3, no ? Anyways if someone has a picture of it without the carpeting, I could cross this on my list of things I want to know about the 996

POST 2Original post

Gas tank is under there. That black "hat" gets you inside to change out the pump. Gas tank in a 4 is molded around the front diff, and used venturi tubes to pull from each side.

POST 3Original post

Cool. I always thought it was the diff too. I guess the GT3 has it because its based off the C4 chassis...

POST 4Original post

A carefully modeled diorama of an AWD system. It looks so real, yet it's made entirely from plastic and removes easily for polishing, without affecting function in any way.

This is a source reference. Confirm exact model applicability in the original material.