'99 996 3.4 ULEZ NOx Emissions - Page 4 - 911/Carrera GT - PistonHeads UK

Posted this on 911UK but only got a limited number of replies so thought I'd ask here too before contacting Porsche... Having just had success with convincing TFL that my 2002 Honda Transalp falls below the ULEZ NOx limit, despite not actually being Euro 3 compliant, I'm looking into seeing if my 996 might escape the penalty too. I requested a 'Certificate of Conformity' from Honda that showed the NOx emissions were below the Euro 3 level and after sending it off to TFL they have written back to confirm it's now exempt from the ULEZ charge. Result. I know cars need to meet Euro 4 spec to avoid the ULEZ charge (which the facelift 996's already meet) but my early 1999 car doesn't meet it apparently. Cars that meet the Euro 4 spec need to produce less than 0.08g/km of NOx. Question is, without me requesting a certificate of conformity for Porsche at a cost of around £100 (and finding out the hard way that it may not pass the test!), does anyone know what the early 996's actually produced in terms of NOx? Does anyone have a certificate of conformity for any of these early 3.4 cars?

What does it come up with when you put your reg in here, mine is a 2001 3.4 and is compliant, a mates 2000 3.4 also checks out ok https://tfl.gov.uk/modes/driving/check-your-vehicl...

Yep. Checked already. Fails it. But so did the Transalp, until I could prove it's NOx emissions otherwise....

GT6 Jonsey said: What does it come up with when you put your reg in here, mine is a 2001 3.4 and is compliant, a mates 2000 3.4 also checks out ok https://tfl.gov.uk/modes/driving/check-your-vehicl... Is your mates 2000 3.4 a cable throttle? Mine is 2000 3.4 but fails....

Mallone said: Posted this on 911UK but only got a limited number of replies so thought I'd ask here too before contacting Porsche... Having just had success with convincing TFL that my 2002 Honda Transalp falls below the ULEZ NOx limit, despite not actually being Euro 3 compliant, I'm looking into seeing if my 996 might escape the penalty too. I requested a 'Certificate of Conformity' from Honda that showed the NOx emissions were below the Euro 3 level and after sending it off to TFL they have written back to confirm it's now exempt from the ULEZ charge. Result. I know cars need to meet Euro 4 spec to avoid the ULEZ charge (which the facelift 996's already meet) but my early 1999 car doesn't meet it apparently. Cars that meet the Euro 4 spec need to produce less than 0.08g/km of NOx. Question is, without me requesting a certificate of conformity for Porsche at a cost of around £100 (and finding out the hard way that it may not pass the test!), does anyone know what the early 996's actually produced in terms of NOx? Does anyone have a certificate of conformity for any of these early 3.4 cars? Hi Mate, Did you get anywhere with this? I'm in the same position - with a 3.4 996 which is listed as failing the ULEZ charge... and I live just inside the expansion area. Did you manage to get a certificate, and if so was it any use with TFL?

cSpaceman said: Hi Mate, Did you get anywhere with this? I'm in the same position - with a 3.4 996 which is listed as failing the ULEZ charge... and I live just inside the expansion area. Did you manage to get a certificate, and if so was it any use with TFL? I did get somewhere. My 996 is now ULEZ compliant! To save me typing it all up, more details on the 911uk thread - http://911uk.com/viewtopic.php?t=137704

Mallone said: I did get somewhere. My 996 is now ULEZ compliant! To save me typing it all up, more details on the 911uk thread - http://911uk.com/viewtopic.php?t=137704 Result! But isn't the Nox figure readout supplied with every MOT? Couldn't you just send that off, or will it fail that way as the car is old and the NOx figures are worse now than when new?

Mousem40 said: Mallone said: I did get somewhere. My 996 is now ULEZ compliant! To save me typing it all up, more details on the 911uk thread - http://911uk.com/viewtopic.php?t=137704 Result! But isn't the Nox figure readout supplied with every MOT? Couldn't you just send that off, or will it fail that way as the car is old and the NOx figures are worse now than when new? It doesn't work like that sadly.

Mallone said: I did get somewhere. My 996 is now ULEZ compliant! To save me typing it all up, more details on the 911uk thread - http://911uk.com/viewtopic.php?t=137704 Great stuff! Thanks for replying and for pointing me towards your other thread. I've put the wheels in motion... looks like I stand a decent chance here!

cSpaceman said: Great stuff! Thanks for replying and for pointing me towards your other thread. I've put the wheels in motion... looks like I stand a decent chance here! Wow! So glad I looked into this thread. I was about to sell my 2002 3.6l 996C2 because the TFL ULEZ vehicle checker said that my vehicle does not meet the ULEZ standard. Unfortunately, there is no NOx info on my V5 but from what has been said it looks like there is a very good chance that my car would meet the ULEZ standard. Is this correct? From the TFL website , it looks like I will need the following to prove that my car meets the ULEZ standard. "Documents you need for proof All vehicles: A copy of the vehicle's V5C or non-UK equivalent Plus To prove your vehicle meets the ULEZ standards: A letter from the vehicle manufacturer's homologation department stating the vehicle's Euro standard or a conformity certificate " Is this correct? I googled "porsche conformity certificate pdf" and the first result gives a form that suggests I can request a Conformity certificate from Porsche for my car for £106. Is this correct? Thanks for potentially saving me from selling my 996!

Just email porsche they send the cert for free.

Just in case there are 996 owners out there who are not aware that their 996 maybe ULEZ compliant despite being manufactured before 2004, I was able to get TFL to confirm that my 2002 996C2 is ULEZ compliant by sending the the certificate of conformity. Porsche sent me the certificate of conformity for free after I emailed them at "[email removed]" to request it.

Just had a confirmation letter via email to confirm my 1999 996 c2 Cab is compliant. No ULEZ charge! Got the certificate of compliance from Porsche (free) and supplied the accompanying letter plus V5 to TFL and hey presto. I could do easily sold the car or spent a few thousand kpgrading for absolutely. I reason. I live right on the edge of the new zone so it would have been a real pain.

firstpresence said: Just had a confirmation letter via email to confirm my 1999 996 c2 Cab is compliant. No ULEZ charge! Got the certificate of compliance from Porsche (free) and supplied the accompanying letter plus V5 to TFL and hey presto. I could do easily sold the car or spent a few thousand kpgrading for absolutely. I reason. I live right on the edge of the new zone so it would have been a real pain. Yep glad this thread has helped others out!

I got a letter from TFL saying my Mk1 996 GT3 was not ULEZ compliant. Is it likely that all Mk1 996 cars have been grouped together and that I may be able to cross the North Circular without a fine?

Pugley said: I got a letter from TFL saying my Mk1 996 GT3 was not ULEZ compliant. Is it likely that all Mk1 996 cars have been grouped together and that I may be able to cross the North Circular without a fine? it is handled by number plate recognition so have you used the ULEZ reg site to see what that says?

Pugley said: I got a letter from TFL saying my Mk1 996 GT3 was not ULEZ compliant. Is it likely that all Mk1 996 cars have been grouped together and that I may be able to cross the North Circular without a fine? Ah nightmare I tell you what I'll do you a favour you can have my C2 3.4 I'll have your GT3. I've just fitted new rads though so maybe some money my way too? Do let me know, I take payment in half eaten mars bars and bits of string.

Pugley said: I got a letter from TFL saying my Mk1 996 GT3 was not ULEZ compliant. Is it likely that all Mk1 996 cars have been grouped together and that I may be able to cross the North Circular without a fine? Wait - I will ask for my GT3 Mk1 CS Certificate of Conformity from Porsche and will attack the morons at TFL with it. Hopefully the CoC will show an acceptable NOx figure. Won’t tell them about that 100 Cell cats and MM Exhaust installed by Manthey

I've applied for a certificate for mine, thanks very much for the advice.

Ladies, Gentlemen, gimps, dwarfs and any and all others inclusive or not. I've been researching this hard in the last couple of days because I've been handed a fine from the Birmingham Clean Air Zone for driving my pollution pumping turd in their lovely urban area full of flowers, butterflies and tree hugging hippies. I believe the new Birmingham Clean Air Zone or CAZ use a new website of data. It seems that the TFL for London and this new website (below) have different data. TFL for London say my car is exempt already even though they also say it is EUR 3. The new website just says not exempt and pay up you climate killing monster you. https://vehiclecheck.drive-clean-air-zone.service.... So not being the type to lie down and take this on the chin I have pushed back. My digging has come up with the following. The new website is managed by the DVLA. They acknowledge their data is different to TFL or London ULEZ. London TFL is happy with just NOx numbers but I believe DVLA and Birmingham CAZ are stipulating EUR 4 ( for petrol cars ) which hopefully means CO, THC and NOx. I've been pointed to this very helpful website by another super helpful PHer called NomduJour - thanks. http://www.emissionsfinder.com/porsche-all-models-... CO Emissions 613 mg/km THC Emissions 88 mg/km NOx Emissions 48 mg/km This gives the results for my Boxster - shown above - but hopefully you can navigate to other models. Now it shows that my Hair Dresser's car does meet the EUR 4 standards but the DVLA won't accept this. They require the Certificate of Conformity. So I have emailed Porsche to ask for this and I'm awaiting their reply. In case anyone is interested you can find the EUR 4 standards here along with all the others - https://en.wikipedia.org/wiki/European_emission_st... I also have a 1998 996 C2 3.4 manual coupe cable throttle. The website mentioned above which shows vehicle emissions numbers does not list this model - or I couldn't find it. So I'm still in the dark about this one. I also have a 2001 996 C2 3.4 manual coupe e-Throttle which I think the website shows the following data for ... below ... which are within the EUR 4 petrol limits and therefore all good. Let's not mention the remap, larger throttle body and fruity exhaust. CO Emissions 269 mg/km THC Emissions 79 mg/km NOx Emissions 55 mg/km I hope the numbers from this website are good and Porsche confirm. Then I hope these zones dont all decide to change to EUR 5 and then EUR 6 or eventually we'll be priced out of the market.

Thanks to those that have contributed on this thread, I have received my CoC from Porsche for a 996.1 GT3 and TFL have confirmed it is ULEZ compliant due to the NOx reading. I wasn’t sure what to expect but the whole process was very straightforward and TFL surprisingly responsive. Much appreciated.

Would you also need to get a separate exemption for any of the ULEZ outside of London?

nsa said: Would you also need to get a separate exemption for any of the ULEZ outside of London? YES I have been through this. Feel free to ask any questions. There is TFL and then there is the rest which are all on one system. So 2 systems. In Summary - copy pasting from another of my posts elsewhere - The new Clean Air Zones all round the country use a different / separate list of vehicle types to the TFL site. Just because some other helpful Porsche Nerd has jumped through the hoops to get their car [and therefore any similar car maybe???] marked as ULEZ exempt on TFL does not transfer over to the new Clear Air Zone system and therefore all the Clean Air Zones all round the country. I bought 2 more Porsches last year and checked both were ULEZ exempt on TFL before I bought them - they were. Then I drove through Birmingham in one and got fined. That's how I know all of this. This was my 986 which I have now had reclassified as ULEZ exempt in all Clean Air Zones. Took many months. https://www.pistonheads.com/gassing/topic.asp?h=0&...

Just been through this process again, but for the various Clean Air Zone's popping up around the UK. Thanks to the hard work put in by ATM to deal with the DVLA with his fleet of Porsche's, I had a rough idea of what to expect and they were surprisingly responsive. Made a general CAZ enquiry with vehicle details, got the automated response asking for more details/evidence, then sent the below through with a copy of the V5 and the Porsche Certificate of Conformity: Mallone said: Dear Sir/Madam, Please see the attached document for a copy of my V5 and a copy of the certificate of conformity, including the covering letter from the manufacturer on headed paper, that states the emissions output of the vehicle. Please note that Porsche use the vehicle VIN number to identify a vehicle to issue these documents. The VIN matches across both the V5 and the Certificate of Conformity. As I understand it, in order for a vehicle to meet the Euro 4 regulations it’s emissions must not exceed the following: CO ------------------ 1.0g/km HC ---------------- 0.10g/km NOx ---------------- 0.08g/km As you can see from the data supplied by Porsche, shown on page 5 of the attached PDF, my vehicle emits the following: CO ------------------ 0.269g/km HC ---------------- 0.079g/km NOx ---------------- 0.055g/km As I understand it, based on other individuals attempts to certify their vehicles as clean enough to drive within a CAZ, that in the absence of a confirmed Euro status, the Date of First Registration of a vehicle, and it’s emissions values recorded at registration, can be used to determine whether it likely meets the Euro 4 minimum emissions standard for Clean Air Zones. Could you please confirm if this is enough information to certify my vehicle as being clean enough to be exempt from charge in the CAZ’s? Many Thanks, Mallone They replied within three hours saying I was right, they will update their systems, and the vehicle is exempt from all the CAZ's. Pretty easy! Edited by Mallone on Thursday 31st March 15:59

Mallone said: Just been through this process again, but for the various Clean Air Zone's popping up around the UK. Thanks to the hard work put in by ATM to deal with the DVLA with his fleet of Porsche's, I had a rough idea of what to expect and they were surprisingly responsive. Made a general CAZ enquiry with vehicle details, got the automated response asking for more details/evidence, then sent the below through with a copy of the V5 and the Porsche Certificate of Conformity: Mallone said: Dear Sir/Madam, Please see the attached document for a copy of my V5 and a copy of the certificate of conformity, including the covering letter from the manufacturer on headed paper, that states the emissions output of the vehicle. Please note that Porsche use the vehicle VIN number to identify a vehicle to issue these documents. The VIN matches across both the V5 and the Certificate of Conformity. As I understand it, in order for a vehicle to meet the Euro 4 regulations it’s emissions must not exceed the following: CO ------------------ 1.0g/km HC ---------------- 0.10g/km NOx ---------------- 0.08g/km As you can see from the data supplied by Porsche, shown on page 5 of the attached PDF, my vehicle emits the following: CO ------------------ 0.269g/km HC ---------------- 0.079g/km NOx ---------------- 0.055g/km As I understand it, based on other individuals attempts to certify their vehicles as clean enough to drive within a CAZ, that in the absence of a confirmed Euro status, the Date of First Registration of a vehicle, and it’s emissions values recorded at registration, can be used to determine whether it likely meets the Euro 4 minimum emissions standard for Clean Air Zones. Could you please confirm if this is enough information to certify my vehicle as being clean enough to be exempt from charge in the CAZ’s? Many Thanks, Mallone They replied within three hours saying I was right, they will update their systems, and the vehicle is exempt from all the CAZ's. Pretty easy! Edited by Mallone on Thursday 31st March 15:59 Useful thanks

shalmaneser said: Mallone said: Just been through this process again, but for the various Clean Air Zone's popping up around the UK. Thanks to the hard work put in by ATM to deal with the DVLA with his fleet of Porsche's, I had a rough idea of what to expect and they were surprisingly responsive. Made a general CAZ enquiry with vehicle details, got the automated response asking for more details/evidence, then sent the below through with a copy of the V5 and the Porsche Certificate of Conformity: Mallone said: Dear Sir/Madam, Please see the attached document for a copy of my V5 and a copy of the certificate of conformity, including the covering letter from the manufacturer on headed paper, that states the emissions output of the vehicle. Please note that Porsche use the vehicle VIN number to identify a vehicle to issue these documents. The VIN matches across both the V5 and the Certificate of Conformity. As I understand it, in order for a vehicle to meet the Euro 4 regulations it’s emissions must not exceed the following: CO ------------------ 1.0g/km HC ---------------- 0.10g/km NOx ---------------- 0.08g/km As you can see from the data supplied by Porsche, shown on page 5 of the attached PDF, my vehicle emits the following: CO ------------------ 0.269g/km HC ---------------- 0.079g/km NOx ---------------- 0.055g/km As I understand it, based on other individuals attempts to certify their vehicles as clean enough to drive within a CAZ, that in the absence of a confirmed Euro status, the Date of First Registration of a vehicle, and it’s emissions values recorded at registration, can be used to determine whether it likely meets the Euro 4 minimum emissions standard for Clean Air Zones. Could you please confirm if this is enough information to certify my vehicle as being clean enough to be exempt from charge in the CAZ’s? Many Thanks, Mallone They replied within three hours saying I was right, they will update their systems, and the vehicle is exempt from all the CAZ's. Pretty easy! Edited by Mallone on Thursday 31st March 15:59 Useful thanks +1 That's better than I did, well done. I'm wandering now if someone so inclined could use the Certificate of Conformity from a vehicle which meets the regs but with a slightly altered chassis number from theirs which doesn't. Not sure how many laws this breaks but you understand the idea behind it right?

I'm in the market for a 996.2 and unfortunalty I live in the ULEZ zone. Putting in the numberplates of prospective cars it looks like the 2003 c2 is not compliant but the 2004 is? Do you think this is a TFL quirk or porsche released an engine update in 2004 that meant it went from euro 3 to 4? Either way it looks like a porsche certificate of conformity does the job with TFL

jwbc1984 said: I'm in the market for a 996.2 and unfortunalty I live in the ULEZ zone. Putting in the numberplates of prospective cars it looks like the 2003 c2 is not compliant but the 2004 is? Do you think this is a TFL quirk or porsche released an engine update in 2004 that meant it went from euro 3 to 4? Either way it looks like a porsche certificate of conformity does the job with TFL I'm surprised by Mallone above managing to swing it with a 99 996 which is a gen 1. As far I know the gen 2 should be even cleaner still. Porsche generally make their cars cleaner every year. But thats just a guess. In any case if the 99 996 3.4 can get under then why would a 2003 not also? I would try some more number plates. I just tried my friends [green] and his is not ULEZ and neither is mine.

Its bonkers - thats a 03 996, if thats ok (although i did run it through the ulez and it couldnt find the car to check) - I was looking at this one ANOTHER 03 996, according to the checker: non compliant. https://www.autotrader.co.uk/car-details/202204144... This one, a 04 plate, compliant!: https://www.autotrader.co.uk/car-details/202203284...

When I was looking for a P 996 or 997 last year I was told by P that all their cars from 99 onwards are ULEZ compliant and that the issue is with TFL. I think it's something to do with the e-gas throttles being introduced.

FriedMarsBar said: When I was looking for a P 996 or 997 last year I was told by P that all their cars from 99 onwards are ULEZ compliant and that the issue is with TFL. I think it's something to do with the e-gas throttles being introduced. Right but CAZ is totally different and possibly harder to swing - all guess work because I've not found anyone who knows the rules for certain. If it is EUR 4 for CAZ then this is different to TFL who just worry about NOx meeting EUR 4 and not all 3 metrics. EUR 4 is CO ------------------ 1.0g/km HC ---------------- 0.10g/km NOx ---------------- 0.08g/km You can see the NOx above. Some pre EUR 4 cars meet the NOx but not the others.

No doubt Sadiq will revise rules again in due course!

ATM said: Right but CAZ is totally different and possibly harder to swing - all guess work because I've not found anyone who knows the rules for certain. If it is EUR 4 for CAZ then this is different to TFL who just worry about NOx meeting EUR 4 and not all 3 metrics. EUR 4 is CO ------------------ 1.0g/km HC ---------------- 0.10g/km NOx ---------------- 0.08g/km You can see the NOx above. Some pre EUR 4 cars meet the NOx but not the others. Very interesting, I hadn't realised that TFL only cared abut NOx.

My 51 plate 996.2 Carrera is both ULEZ and CAZ compliant according the relevant online checkers.

FriedMarsBar said: Very interesting, I hadn't realised that TFL only cared abut NOx. As I understand it yes. But only from reading various Internet chat. I started studying up when I got fined for driving through CAZ in Birmingham when my car was listed as ULEZ compliant. Now I know they are totally different.

Scrump said: My 51 plate 996.2 Carrera is both ULEZ and CAZ compliant according the relevant online checkers. My 52 plate 996.2 is TFL London ULEZ compliant. I know because I went into town on Friday and paid the congestion charge in the evening and the website said so.

ATM said: FriedMarsBar said: When I was looking for a P 996 or 997 last year I was told by P that all their cars from 99 onwards are ULEZ compliant and that the issue is with TFL. I think it's something to do with the e-gas throttles being introduced. Right but CAZ is totally different and possibly harder to swing - all guess work because I've not found anyone who knows the rules for certain. If it is EUR 4 for CAZ then this is different to TFL who just worry about NOx meeting EUR 4 and not all 3 metrics. EUR 4 is CO ------------------ 1.0g/km HC ---------------- 0.10g/km NOx ---------------- 0.08g/km You can see the NOx above. Some pre EUR 4 cars meet the NOx but not the others. I checked my 2004 997 C2 on the CAZ site and it fails Birmingham and Bristol. I don't visit these places but I've sent an email so we'll see what I get back.

My car is a SA vehicle, originally, which means that Porsche UK refused to supply a certificate of conformity for it (despite it being a standard, early 996 in terms of cats and so on). Anyone have a suggestion of a route I could follow to get something official that shows it's emission status?

Useful post. Thanks

Dammit said: My car is a SA vehicle, originally, which means that Porsche UK refused to supply a certificate of conformity for it (despite it being a standard, early 996 in terms of cats and so on). Anyone have a suggestion of a route I could follow to get something official that shows it's emission status? I found this site when I was researching a motorcycle, I didnt use it in the end but there must be something similar for cars? https://www.bikerandbike.co.uk/how-to-get-a-motorc...

FriedMarsBar said: Dammit said: My car is a SA vehicle, originally, which means that Porsche UK refused to supply a certificate of conformity for it (despite it being a standard, early 996 in terms of cats and so on). Anyone have a suggestion of a route I could follow to get something official that shows it's emission status? I found this site when I was researching a motorcycle, I didnt use it in the end but there must be something similar for cars? https://www.bikerandbike.co.uk/how-to-get-a-motorc... There isn't, it's for bikes only

Does NOx appear on the MOT printout? I'm not in the country so don't have a copy at hand.

nsa said: Does NOx appear on the MOT printout? I'm not in the country so don't have a copy at hand. No. Only HC and CO

Finally got my CoC from Porsche. Now to contact TfL to make car ULEZ compliant.

I have just received an email back from Porsche asking for either my V5 or a sales receipt as proofof ownership. As i have only just purchased my 3.4 car i only have a written sales receipt from the seller. Anyone managed to get through the owner proof process using just a sales receipt. ? Don't wish to waste 30 day's to then get a knockback.

stretcher said: I have just received an email back from Porsche asking for either my V5 or a sales receipt as proofof ownership. As i have only just purchased my 3.4 car i only have a written sales receipt from the seller. Anyone managed to get through the owner proof process using just a sales receipt. ? Don't wish to waste 30 day's to then get a knockback. The sales receipt should work. I see no reason as to why it shouldn't. Otherwise, wait for the V5 to come through

Smollet said: The sales receipt should work. I see no reason as to why it shouldn't. Otherwise, wait for the V5 to come through I will give it a shot. Previous owner is removing the reg so V5 could be a few months off knowing the DVLA.

stretcher said: Smollet said: The sales receipt should work. I see no reason as to why it shouldn't. Otherwise, wait for the V5 to come through I will give it a shot. Previous owner is removing the reg so V5 could be a few months off knowing the DVLA. It amazes me how long it takes to get a new V5 processed. It shouldn’t take longer than a few working days.

Just received this “ The ULEZ operates 24 hours a day, 7 days a week, excluding Christmas day, in central London within the area up to, but not including North Circular Road (A406) and South Circular Road (A205). Based on the information that you have provided, your vehicle registration C7JUG is subject to the ULEZ and does not meet the emissions standards. This means you will need to pay the appropriate ULEZ charge and if applicable, the Congestion Charge and LEZ charge. If you do not pay the charge(s) you may receive Penalty Charge Notice(s) for one or more schemes. As your vehicle does not comply with the ULEZ standards, you can choose to pay the charge or use an alternative form of travel. For example: ● ● ● ● Walk, cycle or use public transport. Upgrade to a new (or newer) vehicle model that meets the ULEZ standards Join a car club. All car club vehicles meet the ULEZ standards. Find out more about car clubs at tfl.gov.uk/modes/driving/car-clubs Switch to a zero emission capable vehicle. More information can be found at tfl.gov.uk/modes/dr

Hi just following on from this rather than starting a new thread. I also succesfully had an e39 b10 added to ulez with NOx compliance certificate. from Alpina. BUT - can anyone suggest somewhere to get a car tested for its current NOx level if the manufacturer does not have this information. I want to see if TFL will also accept this for a car that has NOx levels under 0.08. Many thanks!

madras said: Hi just following on from this rather than starting a new thread. I also succesfully had an e39 b10 added to ulez with NOx compliance certificate. from Alpina. BUT - can anyone suggest somewhere to get a car tested for its current NOx level if the manufacturer does not have this information. I want to see if TFL will also accept this for a car that has NOx levels under 0.08. Many thanks! I've never heard of this with a car - I believe you can do this for motorbikes but I don't think there is any provision for this if you have more than two wheels. It's a shame as it would provide a good route for enthusiasts who want a retro daily for an engine swap. Interested to hear if you can unearth something but I reckon it will be tricky to convince tfl.

Does anyone know what equipment is required to test NOx for cars? If ULEZ+ happens it would appear to be a no-brainer to buy one of these machines and offer tests at 200 pounds a go.

nsa said: Does anyone know what equipment is required to test NOx for cars? If ULEZ+ happens it would appear to be a no-brainer to buy one of these machines and offer tests at 200 pounds a go. That assumes TFL would accept them. I have a strong suspicion that TFL would be reluctant to accept them as they're keener than ever to increase their income.

FriedMarsBar said: nsa said: Does anyone know what equipment is required to test NOx for cars? If ULEZ+ happens it would appear to be a no-brainer to buy one of these machines and offer tests at 200 pounds a go. That assumes TFL would accept them. I have a strong suspicion that TFL would be reluctant to accept them as they're keener than ever to increase their income. This It is not in their interest for cars to produce less emissions or be proven to do so. They just want their money. What do they do with this money? Do they spend it on stuff which makes the air cleaner? Or do they spend it on more and more staff to send out more and more reminders and fines.

ATM said: What do they do with this money? . I assume it's to fill the hole created by significantly less tube fares?

FriedMarsBar said: That assumes TFL would accept them. I have a strong suspicion that TFL would be reluctant to accept them as they're keener than ever to increase their income. I read that only one garage has invested in the testing equipment for motorbikes, and they can upload results directly to the TFL system.

is it inherently different for bikes? I assume the same equipment and garage could test cars?

markiii said: is it inherently different for bikes? I assume the same equipment and garage could test cars? A car is much much heavier than a bike. So therefore it must consume way more fuel comparatively. Therefore the slightest improvement in emissions is surely multiplied in a car compared to a bike. I'd guess they dont want cars being more efficient and if they become more efficient they will move the goal posts. But in the meantime they would have a hard time objecting to owners doing this because it sends the wrong message. So I say someone should try it. Give this garage a call and ask them if they can accommodate a car. Not sure if this is just revs while bike / car / machine is idling and stationary or on a roller and under load? When I went down the rabbit hole getting my 986 classified as ULEZ exempt with CAZ, one of the many threads I was spamming about this had an interesting reply from some well educated engineering type, or so he / she / they seemed. They suggested that the rules around the testing of vehicles had changed between EUR 3 and EUR 4 and therefore just looking at the numbers in the result was meaningless. I remember in that program about VW cheating on the testing of their diesels they showed a car in a controlled environment sitting on rollers and simulating driving at x speed. I believe they have now changed these rules so that cars cant frig the results. So the numbers from the previous tests compared to the numbers from the later tests could be completely different. I know the later 996 3.4 cars have an aux air pump. Surely pumping fresh air into the exhaust will make the emissions look lower than they are on a volume basis. But now I have reached the end of my brain power on this subject.

ok I rang this place https://www.uleztesting.co.uk/#about and apparently no one is doing it in the UK, no one has setup a business to offer this service. It would require a full Euro emissions test on a rolling road. It sounds like in theory if someone was offering this for cars as well as bikes then we could get euro 3 cars with NOx lower than 0.08 added in situations where the manufacturer does not have the figure. TFL pretty quickly added a euro 3 car with certificate for me. If anyone knows any different or a business doing this let us know! thanks!

I have a '99 996. I asked Porsche for a conformity certificate which they provided. I contacted ULEZ who weren't entirely helpful but when I spelled out the emissions on the certificate & pointed it out that they were satisfactory ULEZ relented & granted me conformity. No major drama or physical testing.

nsa said: I read that only one garage has invested in the testing equipment for motorbikes, and they can upload results directly to the TFL system. When I had a motorbike I looked into this and found only one garage that offered this service for bikes, ironically it was in central London inside the zone!!!! Edited by FriedMarsBar on Friday 10th March 08:45

Hi Guys I am trying to see if my year 2000 996 meets the ULEZ emissions limits. TFL says it doesn't, but I know there is some room for movement on this, so got my certificate of conformity from Porsche. Firstly, it is in German (has anyone been sent one in English?). Secondly, I'm struggling a bit to see from the doc whether my car meets the ULEZ conditions or not. The NOx amount seems fine (see red circled part of the pic below), but I cannot see a clear indicator on whether it meets the CO2 levels needed. Can anyone help please? smile The pic is via Google Translate. Thanks

Your car does meet all the criteria - my 2000 GT3 is ULEZ exempt thanks to this thread. If the GT3 passes the test so would a standard Carrera. For a change, they were surprisingly efficient - got my car to be exempt within 24hrs of sending TFL an explanatory email with the CoC as an attachment. Hope this helps, Alex

Great, thanks. Was your CoC also in German? Also, is there a specific email to use when asking for your vehicle to be put in the ‘approved’ list?

Blue One said: Great, thanks. Was your CoC also in German? Also, is there a specific email to use when asking for your vehicle to be put in the ‘approved’ list? Yep - CoC was in German. From memory - I think I created an account with TFL and then inside I was able to contact them and submit an email with the CoC. You can also try this email [email removed]

Thanks

I’m having a hell of a time getting my car exempt. Despite providing the required proof that the car meets the NOX level, three times it has been rejected by TFL. Good luck 🤞

Have they given any indication why?

TheThrottleCable said: I’m having a hell of a time getting my car exempt. Despite providing the required proof that the car meets the NOX level, three times it has been rejected by TFL. Good luck ?? I got refused twice before I explained v e r y s l o w l y what was on the certificate and then they exempted me.Birmingham still can't understand that CO2 is the same in both German & English.

Biggy Stardust said: I got refused twice before I explained v e r y s l o w l y what was on the certificate and then they exempted me.Birmingham still can't understand that CO2 is the same in both German & English. Have Birmingham given you any meaningful reason for denying your application?

HughG said: Have they given any indication why? No just generic rejection notices that the car doesn’t meet the regulations despite providing proof it does. It’s like being stuck in a Little Britain sketch of ‘computer says no’

Biggy Stardust said: TheThrottleCable said: I’m having a hell of a time getting my car exempt. Despite providing the required proof that the car meets the NOX level, three times it has been rejected by TFL. Good luck ?? I got refused twice before I explained v e r y s l o w l y what was on the certificate and then they exempted me.Birmingham still can't understand that CO2 is the same in both German & English. When you speak to TFL you speak to a generic person that has no influence in the process. They basically perform the task of a receptionist. The agent told me that team that makes the decision do not take any calls… helpful process. I’m particularly annoyed as my office is just inside the edge of the zone.

ATM said: Biggy Stardust said: I got refused twice before I explained v e r y s l o w l y what was on the certificate and then they exempted me.Birmingham still can't understand that CO2 is the same in both German & English. Have Birmingham given you any meaningful reason for denying your application? First time was because they don't understand German- they couldn't read eg CO2= x.xx% et cetera. Second time was when I explained that CO2 was the same in both languages & the figures were abundantly clear. They said that because it had been refused once it would continue to be refused.

This thread has just got me to check my 996.2 GT3 in both Ulez and CAZ, good to go in both.

Porsche seem to have gone totally silent....... I put in my request for the cert of conformity back in June - they acknowledged receipt and said I'd have it in 28 days. Have heard nothing since. Have chased twice and no response to my emails............

Hi all Appreciate this is an old thread but Im coming up against a similar issue which you seem to have resolved. My car is confirmed as ULEZ compliant on TFLs website but Birminghams CAZ say my 997 C4S is not compliant to Euro 4 standards despite it being registered in Nov 2005. Where did you guys get the CoC from? I have emailed Porsche. Checking the log book the emissions seem to be recorded incorrectly or Im just reading them wrong? V.1 CO (a/km or g/kWh) - 0.413 V2 HC (o/km or g/kWh) - 0.686 V3 NOx (g/km or g/kWh) - 0.582 Based on above figures it doesn't even meet Euro 3 standards Appreciate any and all help. Thanks

Carrera4S997 said: Where did you guys get the CoC from? I have emailed Porsche. Which email address? What did you email / send?

I filled out a form and sent my V5 to [email removed]. They have confirmed Porsche Germany are dealing with the request and takes up to 28 days.

Carrera4S997 said: I filled out a form and sent my V5 to [email removed]. They have confirmed Porsche Germany are dealing with the request and takes up to 28 days. Then you have done the right thing. I tried a couple of other Porsche email addresses first that got me nowhere.