'99 996 3.4 ULEZ NOx Emissions

[Mallone]

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?

[Mallone]

Yep. Checked already. Fails it.

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

[Mallone]

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]

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