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YOUR RESEARCHHello, and ULEZ (I know there are tons of threads!) 996.1 C4 2001
Leading reported evidence
Check other caz areas (all ok bar birmingham and bristol)
Performed · outcome unconfirmed
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1
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Performed · outcome unconfirmed · Original poster
I also checked the other CAZ areas (all OK bar Birmingham and Bristol).
Hello, and ULEZ (I know there are tons of threads!) 996.1 C4 2001
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Leading evidence: 'Check other caz areas (all ok bar birmingham and bristol)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check other caz areas (all ok bar birmingham and bristol)' (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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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
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Performed · outcome unconfirmed
Get the CofC first, then write to DVLA to get your V5 changed then you will have to write to The various ULEZ to Beth their database changed, it’s a ball ache but worth doing.
Hello, and ULEZ (I know there are tons of threads!) 996.1 C4 2001
Check ulez as i'm within the zone
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Suggestion · Original poster
When I was looking for a 996 one of the first things I'd do is check ULEZ as I'm within the zone.
Hello, and ULEZ (I know there are tons of threads!) 996.1 C4 2001
Check vehicle
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Hello, and ULEZ (I know there are tons of threads!) 996.1 C4 2001
Replace number tfl can't cope and you go back
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Suggestion
But if you're thinking of putting private reg on, do that first, otherwise when you change the number TFL can't cope and you go back to the beginning......even though it should be done on the chassis number.
Hello, and ULEZ (I know there are tons of threads!) 996.1 C4 2001
Replace number tfl can't cope and you go back
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Suggestion
But if you're thinking of putting private reg on, do that first, otherwise when you change the number TFL can't cope and you go back to the beginning......even though it should be done on the chassis number.
Hello, and ULEZ (I know there are tons of threads!) 996.1 C4 2001
Replace then you will have
No successful repair reported for this finding.
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Performed · outcome unconfirmed
Get the CofC first, then write to DVLA to get your V5 changed then you will have to write to The various ULEZ to Beth their database changed, it’s a ball ache but worth doing.
Hello, and ULEZ (I know there are tons of threads!) 996.1 C4 2001
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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.
13 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
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Generation: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello!
I am a new owner here, been browsing various threads here for a while which has been super useful.
When I was looking for a 996 one of the first things I'd do is check ULEZ as I'm within the zone. The one I ended up buying said ULEZ exempt - great. I also checked the other CAZ areas (all OK bar Birmingham and Bristol). So, I thought when I get the V5 I'll get CAZ updated so it's exempt for them all.
I've just now got the V5 back and looked at the NOx figure on it - it's 0.09 which I understand it above the limit of 0.08 (ULEZ) which I thought was weird. I've now also checked a few other cars like mine (2001 3.4 C4 manual) and I can't find another that is ULEZ exempt.
So, my question is - does anyone here have a 996.1 C4 manual that is ULEZ compliant??? (I have sent Porsche an email requesting a CoC).
Cheers!
I've a '99 C4 manual that is ULEZ exempt. My CoC from Porsche states the NOx is 0.076g/km.
Not sure the reason for differences.
My car was built with 17" wheels, unsure if that makes a difference.
Thanks both. Yes I’ll get hold of the CoC, the confusing this is that it is ULEZ exempt according to TFL and most of the CAZ areas whilst DVLA/V5 says 0.09 NOx? So practically, I’m fine anyway, but it just bugs me. Anyway I guess the CoC will get to the bottom of it, but what if it confirms the 0.09 lol!
I had to go through this process with both my 996 C4 1999 and my Boxster 1997.
Get the CofC first, then write to DVLA to get your V5 changed then you will have to write to The various ULEZ to Beth their database changed, it’s a ball ache but worth doing.
There is a post on here somewhere that gives you step by step guide and even offers up letter templates you should use.
Good luck
Yes like I said the that’s the first thing I’d do when looking at cars - as mentioned it comes up as exempt but the NOx figure on the V5 is over the limit which is what’s puzzling…
1999 996 C4, but a Tip, and 2000 986S manual both compliant with CoC. But if you're thinking of putting private reg on, do that first, otherwise when you change the number TFL can't cope and you go back to the beginning......even though it should be done on the chassis number. Ask me how I know......
So, my CoC has come back and my figures are:
CO: 0.419
HC: 0.094
NOx: 0.090
HC + NOx: 0.184
If this is correct it puts my car over the NOx threshold of 0.08 (even though it comes up as ULEZ exempt anyway).
Can anyone tell me any possible reason why my figure is over 2.5 times that of other 2001 C4 manuals that have figures of 0.035 (I have seen other peoples CoC’s to confirm this).
My car is a 2001 model year with the M96/04 engine which I believe met the highest emissions standards of the 3.4 motor, had pre + post cat O2 sensors, secondary air pump etc.
Puzzled
thanks good point, but no it is a UK car I have the build details from the sticker.
I can’t help but think that the figures are wrong based on other other information. I guess I will query it and see how I get on. It will probably be useful to see if I can get any more figures from other cars like mine. Cheers
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