15 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHow can I burp my 996? Low coolant light keeps coming on
Leading reported evidence
Check coolant level and it was fine
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.
How can I burp my 996? Low coolant light keeps coming on
Read full discussion summary
Leading evidence: 'Check coolant level and it was fine' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check coolant level and it was fine' (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.
How can I burp my 996? Low coolant light keeps coming on
Fill reservoir
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
Don’t forget to turn the heater on high to get the air out of that part of the system as you run the engine and fill the reservoir.
How can I burp my 996? Low coolant light keeps coming on
Fill with a vacuum filler
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
If this doesn't work, your best bet would be to drain the system and re-fill with a vacuum filler.
How can I burp my 996? Low coolant light keeps coming on
Replace coolant every 24 - 36 months
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
#3 - You should really be changing your coolant every 24 - 36 months, so the cost of the "airlift" vacuum tool will pay for itself rather quickly (you can use it on your other cars as well - it's not Porsche specific).
How can I burp my 996? Low coolant light keeps coming on
Replace coolant every 24 - 36 months
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
#3 - You should really be changing your coolant every 24 - 36 months, so the cost of the "airlift" vacuum tool will pay for itself rather quickly (you can use it on your other cars as well - it's not Porsche specific).
How can I burp my 996? Low coolant light keeps coming on
Use right stuff etc...)
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
*if it's not worth the hassle, just pay the dealer/shop - in my case, it's a matter of trust (I just rather do it myself, and not worry whether they did it correctly - or even at all- or used the right stuff etc...).
How can I burp my 996? Low coolant light keeps coming on
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.
15 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: 20261027T064914Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
02 996 cab 130k. Think I had a little coolant leak but I added coolant and then the light comes on "Low Coolant" and the red light on the gauge flashes. The car did not overheat. I checked the coolant level and it was fine. Not sure what to do next.
Is there a procedural on burping these cars?
Pull the wire bale up on the "burp cap" and leave it that way while running the engine. When the thermostat opens and starts to circulate coolant, keep filling the expansion tank - the air bubble should work it's way out. If this doesn't work, your best bet would be to drain the system and re-fill with a vacuum filler.
Thanks man. Because I don't know who old the coolant is in this car I think that I will go ahead and change all of it. Never heard of a vacuum filler. Where can I get one? Can I use a shop vac instead?
Post #1 and #15 tell you everything you need to know:
https://rennlist.com/forums/996-foru...pump-tips.html
This should be one of the top tips for any car with a large capacity cooling system.
You will need an air compressor capable of pulling enough vacuum for the siphon effect to work.
Here's the airlift unit I bought. Not cheap - but worth it, in my opinion.
https://www.amazon.com/gp/product/B0002SRH5G/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B0002SRH5G/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
LOL- this was my original reply to c didy, because I didn't read--- Never open the cap until it's cooled off. It's still pressurized and will blow extremely hot coolant as soon as you remove the lid. Think of it like the top to a plain old school radiator.
To answer your question, I started it cold with the cap off. Flipped that cool burp switch up and added coolant as it was warming up until full.
I got a quote of $200 including parts and labor. They have the right equipment, this is one that I'll pass on. Thanks for the help.
The coolant is circulating in the heater core at all times, regardless of the setting. Cabin temperature is regulated by the infamous foam throwing flaps.
Lol, they want $60.00 here in Hawaii. I didn't bother to ask if it was pre-mix or concentrate. Porsche brand coolant is not the only option for our 996's.
#1 - don't open the cap when the engine is "up to temp" it's pressurized when hot and will push steam and hot coolant out of the opening...
#2 - you can start the engine with the filler cap open and fill as necessary when the fluid level starts to drop (when the thermostat opens) - the problem with this technique is that it's not good to let the car sit and idle (maybe take it for a quick spin around the block?) - just don't let the temp get too high, and make sure you coolant level doesn't get too low.
#3 - You should really be changing your coolant every 24 - 36 months, so the cost of the "airlift" vacuum tool will pay for itself rather quickly (you can use it on your other cars as well - it's not Porsche specific).
#4 - The Porsche coolant is $40 - $50/gal, but you cut it 50/50 with water so actual cost is only $20-$25/gal. Every 2-3 years, this shouldn't break the bank... especially if you consider what a dealer/shop will charge you*
*if it's not worth the hassle, just pay the dealer/shop - in my case, it's a matter of trust (I just rather do it myself, and not worry whether they did it correctly - or even at all- or used the right stuff etc...).
This is a source reference. Confirm exact model applicability in the original material.
