Firm faces fine after self-reporting error in fuel consumption and emission figures for unspecified variants of outgoing '991' series 911
1 February 2019

Porsche could be given a substantial fine by the German government after admitting that fuel consumption and emission figures submitted for type approval of the outgoing 991-series 911 were incorrect.

The fuel consumption and emission data submitted to the German Transport Ministry prior to the granting of type approval for unspecified 911 models in 2016 and 2017 included incorrect values due to miscalculations in their drag co-efficient. According to a report by German newspaper Der Spiegel, Porsche self-reported the error to German authorities and is also set to inform US authorities.

Der Spiegel reported that laboratory tests carried out on the old 911 failed to factor in the drag co-efficient, which led to figures that do not represent real world fuel consumption and emissions.

Fuel consumption and emission values gained on a rolling road are much lower from those in the real world owing to a lack of wind resistance. The error means that the affected 911 models use more fuel and emit more emissions than noted in their type approval.

Porsche chairman Oliver Blume says he has informed the German Transport Ministry of the false data and Porsche engineers are now reportedly working with German government authorities to determine the extent of the miscalculation.

Under German law car makers can be fined if fuel consumption and emissions vary by more than 10 per cent from their claimed values, and customers could also claim compensation. It is not yet know how much variation there is between the figures Porsche recorded, or how many cars are affected.

Autocar has contacted Porsche for comment, and is waiting for a reply.

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Comments
16

1 February 2019

Very convenient to come clean just as the model in question goes out of production!

2 February 2019

No Way!!!

1 February 2019

The fact that Porsche has cheated doesn't surprise me at all, it's part of VAG after all. In addition, it's generally suspected that also ALL other manufacturers are cheating by supplying too low drag co-efficient and rolling resistance values for the fuel consumption tests.

However, I cant stop thinking what on earth is going on in the Porsche management. First they are like "let's cheat" and after 8 years of successfully cheating, just before the old 911 goes out of production, they deside to come clean. After the model change, no one would have noticed this. 

I don't know whether I should admire them for their honesty, or despice them for their stupidity.

1 February 2019

Why the surprise?

1 February 2019

A few years ago Hyundai got in trouble for understating drag. Will Porsche face repercussions in the US and elsewhere? 

1 February 2019

How about Volvo claims of 80 and 94mpg for the XC90 and XC60 Hybrids when you'll be lucky to get 30mpg.

1 February 2019

What a surprise, not! I highly doubt this was an error, more like a deliberate lie to mislead authorities and the buying public. What is it with the German car industry and their mission to mislead?

FM8

1 February 2019
Roadster wrote:

What a surprise, not! I highly doubt this was an error, more like a deliberate lie to mislead authorities and the buying public. What is it with the German car industry and their mission to mislead?

...could be similar to how JLR tells a few tales over the true weight of their cars...

2 February 2019
Roadster wrote:

What a surprise, not! I highly doubt this was an error, more like a deliberate lie to mislead authorities and the buying public. What is it with the German car industry and their mission to mislead?

buying public does not care about another couple of mpgs, that is not why they buy Porsche cars. Porsche is the strongest mass-produced brand there is, margins of 30-50% PER CAR and sales records each year for a decade. The company is worth more than the whole VAG group. The Taycan will be profitable right from the first vehicle, unlike ever-loosing Tesla.

Mission to mislead? Are you dumb? You think other manufacturers report figures from REAL WORLD usage? What is happening here is a hippie german government trying to destroy their own country. Do you follow local German news? No? Then you do not know what is happening in that country. It is a crying shame what is happening in Germany!

2 February 2019
NoPasaran wrote:

What is happening here is a hippie german government trying to destroy their own country. 

 

Quoted for ridicule.

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