25 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHAnnoying 'quirk' of the 996
Leading reported evidence
Run ac
Suggestion or failed attempt
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Suggestion
I tend to run the AC on most times anyways, to keep the low radiator fans running, but never knew the best way to handle this in the winter.
Leading evidence: 'Run ac' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run ac' (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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Suggestion · Original poster
If I set the A/C to off it comes straight back on again on a restart.
Set on the compressor is not engaged....i believe all cars
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Suggestion
If it's cold outside even though its set on the compressor is not engaged....i believe all cars with climate control where you set temp work this way....i wouldn't worry about it.
Set temp work this way....i wouldn't worry about it
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Suggestion
If it's cold outside even though its set on the compressor is not engaged....i believe all cars with climate control where you set temp work this way....i wouldn't worry about it.
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.
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Suggestion · Original poster
Hi all, probably been mentioned before but, if I set the temperature on my A/C control it is remembered when I switch off and back on.
Set on the compressor is not engaged....i believe all cars
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Suggestion
If it's cold outside even though its set on the compressor is not engaged....i believe all cars with climate control where you set temp work this way....i wouldn't worry about it.
Set temp work this way....i wouldn't worry about it
No successful repair reported for this finding.
0
Reported fixes
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1
Discussions
Read evidence and context
Discussions that contain suggestions
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
If it's cold outside even though its set on the compressor is not engaged....i believe all cars with climate control where you set temp work this way....i wouldn't worry about it.
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.
25 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.
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Generation: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi all, probably been mentioned before but, if I set the temperature on my A/C control it is remembered when I switch off and back on. If I set the A/C to off it comes straight back on again on a restart.
Mine acts the same as yours. Everytime I start my vehicle, the AC is on, no matter what I had it set to before I shut it off. I tend to run the AC on most times anyways, to keep the low radiator fans running, but never knew the best way to handle this in the winter. Should I keep the AC on and jack up the temp, or should the AC be off?
What year? The AC controls are a little bit different between the Mark 1 and Mark 2. On the mark 2 if you manually hit the minus button on the speed till it says off before you shut down the car and when you turn it back on it will be off until you turn it on. I'm not sure about the Mark 1 cars.
even though it is on it doesn't mean its running. If it's cold outside even though its set on the compressor is not engaged....i believe all cars with climate control where you set temp work this way....i wouldn't worry about it.
Mine is a 1999. I've never worried about it, like said just thought it was supposed to be like that... now its going to bother me. geesh, thanks for the headache lol
My 99 does the same as OP's. Doesn't drive my crazy...it is just what it is. And running the AC compressor in colder temps really helps dehumidify the interior.
Mine comes back on at restart too. And if I had the defroster on with a low fan speed, it comes back on at restart too, but with the fan at full blast.
Seems like we've cracked the case, boys. This is a Mk.1 issue.
2003 Carrera AC stays off but I am annoyed I have to hold the minus button to turn it off. Wish the auto button were smaller and there were also an off button but first world problems...
On my ‘99 if it is in Auto mode when I shut the car off it restarts to Auto mode. If I have the system turned off, when I start the car it comes on in manual mode with the lowest fan speed setting.
Daryll
So it looks like a design fault on the mk1 which was rectified on the mk2. Shame, I thought someone would chip in with a magical button sequence that would fix it!
The '99 C4 has a fuel cooler that operates off of the
AC compressor
. It only functions to cool the return fuel charge when the compressor is on. I don't have a non-'99 996 to compare my car's behavior with, but it seems at least plausible that the HVAC preferences may be different between fuel-cooler-equipped cars and all other 996's that did not come with the fuel cooler (or HVAC controllers that were installed in 996's during the period where the fuel cooler
could
have been present).
It must have been corrected in 2002. My 2000 Boxster's A/C is On whenever I start the car, regardless of how it was when I shut off the engine before. My 2002 996 will stay off if that's how it was when I shut off the engine.
This is a source reference. Confirm exact model applicability in the original material.
