5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHPotential turbo purchase
Leading reported evidence
Check bonnet sticker
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
Stick your fingers through the vents in the rear wheel arches and feel the surface of the intercooler - if it's ridged, it's an X50 (worth a bit more if the seller doesn't know!!) - or check the bonnet sticker for the X50 code.
Leading evidence: 'Check bonnet sticker' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check bonnet sticker' (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 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
On a test drive, check the boost at wide open throttle at higher revs, using the OBC.
Check mileage discrepancy and rev range 1 and 2,along
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
I would just add the mileage makes you consider clutch and rads i am on to my second set of rads and had the clutch done recently, the other thing you might consider is a dme check on later 996 turbo you can check for mileage discrepancy and rev range 1 and 2,along with mileage then suspension,The Turbo particularly relies on its oil more to help the turbos I have always changed the oil on mine at 5000 miles, non are essential but help if you are trying to distinguish amongst the many out there,likewise i dont think many have had the gearbox or diff oil changed,or cooling fluid.
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
I would just add the mileage makes you consider clutch and rads i am on to my second set of rads and had the clutch done recently, the other thing you might consider is a dme check on later 996 turbo you can check for mileage discrepancy and rev range 1 and 2,along with mileage then suspension,The Turbo particularly relies on its oil more to help the turbos I have always changed the oil on mine at 5000 miles, non are essential but help if you are trying to distinguish amongst the many out there,likewise i dont think many have had the gearbox or diff oil changed,or cooling fluid.
Check pcm (if fitted) works fully and doesn't flicker
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
Check the PCM (if fitted) works fully and doesn't flicker.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check bonnet sticker
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
Stick your fingers through the vents in the rear wheel arches and feel the surface of the intercooler - if it's ridged, it's an X50 (worth a bit more if the seller doesn't know!!) - or check the bonnet sticker for the X50 code.
Check mileage discrepancy and rev range 1 and 2,along
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
I would just add the mileage makes you consider clutch and rads i am on to my second set of rads and had the clutch done recently, the other thing you might consider is a dme check on later 996 turbo you can check for mileage discrepancy and rev range 1 and 2,along with mileage then suspension,The Turbo particularly relies on its oil more to help the turbos I have always changed the oil on mine at 5000 miles, non are essential but help if you are trying to distinguish amongst the many out there,likewise i dont think many have had the gearbox or diff oil changed,or cooling fluid.
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
I would just add the mileage makes you consider clutch and rads i am on to my second set of rads and had the clutch done recently, the other thing you might consider is a dme check on later 996 turbo you can check for mileage discrepancy and rev range 1 and 2,along with mileage then suspension,The Turbo particularly relies on its oil more to help the turbos I have always changed the oil on mine at 5000 miles, non are essential but help if you are trying to distinguish amongst the many out there,likewise i dont think many have had the gearbox or diff oil changed,or cooling fluid.
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
I would just add the mileage makes you consider clutch and rads i am on to my second set of rads and had the clutch done recently, the other thing you might consider is a dme check on later 996 turbo you can check for mileage discrepancy and rev range 1 and 2,along with mileage then suspension,The Turbo particularly relies on its oil more to help the turbos I have always changed the oil on mine at 5000 miles, non are essential but help if you are trying to distinguish amongst the many out there,likewise i dont think many have had the gearbox or diff oil changed,or cooling fluid.
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.
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: 20261026T142254Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi everyone,
Ive had my 02 996 C4 for a while now and am starting to consider changing for a turbo. Apart from the usual stuff, and whats in the 996 buyers guide, is there anything specific to the turbo that I need to look out for ?
Regards
Wills
The turbo wastegate actuator rods can tend to evaporate with the heat, as can the nuts securing the turbos in the exhaust. The nuts are easy and cheap enough to replace, but the actuators can be a bit expensive. (£300+ each). The diverter valves can fail (£100 each), but it isn't very common.
On a test drive, check the boost at wide open throttle at higher revs, using the OBC. On a normal Turbo it should read 0.6-0.7 bar. Anything more and it will have been chipped. If it is down at 0.4bar max, there could be a problem.
Check for coolant smell (could be cracked reservoir or any number of hoses/connectors). Listen for a high pitched whistle which disappears instantly on pressing the clutch - it'll be the clutch/power steering reservoir valve. Stick your fingers through the vents in the rear wheel arches and feel the surface of the intercooler - if it's ridged, it's an X50 (worth a bit more if the seller doesn't know!!) - or check the bonnet sticker for the X50 code. Check the PCM (if fitted) works fully and doesn't flicker.
Thanks Richard and Broggers. This is the sort of info you can only pick up from guys like you. It really shows the value of this forum.
I'm going to see a couple of cars this week, will let you know how things go.
Wills
I would just add the mileage makes you consider clutch and rads i am on to my second set of rads and had the clutch done recently, the other thing you might consider is a dme check on later 996 turbo you can check for mileage discrepancy and rev range 1 and 2,along with mileage then suspension,The Turbo particularly relies on its oil more to help the turbos I have always changed the oil on mine at 5000 miles, non are essential but help if you are trying to distinguish amongst the many out there,likewise i dont think many have had the gearbox or diff oil changed,or cooling fluid.
the diverter /BOV if bought from bosch arent £100 but £35 shiny alloy ones are £110
ps just in rt wrighttune have the PAS pump attended to
This is a source reference. Confirm exact model applicability in the original material.
