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AC heating question

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

Discussion summary

YOUR RESEARCHAC heating question

Leading reported evidence

Replace when the compressor is

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

Does the temperature of the air coming from the vents change when the compressor is on?

AC heating question
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Leading evidence: 'Replace when the compressor is' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace when the compressor is' (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.

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1 matching discussions · 5 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Set temperature higher than outside temp

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 · Original poster

When I press �Auto� and set the temperature higher than outside temp, it blows cold air.

AC heating question
Frequently discussed actions (2)

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

Replace when the compressor is

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

Does the temperature of the air coming from the vents change when the compressor is on?

AC heating question

Set temperature higher than outside temp

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

When I press �Auto� and set the temperature higher than outside temp, it blows cold air.

AC heating question
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.

5 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: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi friends, this feels like a stupid question but I have been trying to figure out how to turn on heating in my MK2 Carrera. When I press �Auto� and set the temperature higher than outside temp, it blows cold air. When in �MANUELL� mode and I turn on the �snowflake� compressor button on the button left corner, it blows cold air. When I turn off the compressor and just leave the blower on, it blows warm air. But is this really how the heating works in this car? Wouldn�t the cabin get all fogged up this way? I looked up the owners manual but I cannot find the answer. I hope anyone can finally enlighten me here. Does it have anything to do with market specs? I live in Taiwan which is subtropical but it does get chilly in winter. Cheers guys and thanks.

POST 2Original post

It’s likely that the blend doors have not been patched and the foam is disintegrated, like so: The heater core sits in that alcove on the right. But then again maybe the servo that moves the blend door is inoperative.

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 19784905

Looks like the AC system needs to get checked. So what�s the normal operation to get the heating going?

POST 4Original post

It should be by just turning up the temperature. Taking a few moments to ponder, I’m curious if any temperature sensors are giving false data. Does the temperature of the air coming from the vents change when the compressor is on? Or is it just the same level of cold?

POST 5 / ORIGINAL POSTEROriginal post

Quotes source post: 19784913

I�ve never think to check if the level of cold changes. I�ll get a feel tomorrow! It could be the temp sensor if there is different levels of cold?

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