Diess said: “A few years ago, in Stuttgart, there were 800 hours per year when it was above the air quality limit. Last year, it was three hours. The situation is continuously improving because everything is getting cleaner."
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He continued: “We had 90 cities that were above the limits three years ago. Last year it was 70, and 50 of those are very close to limits. Which means that they will fall under those limits this year or next year.
“What’s left is 20 cities where air quality is poor in very localised areas. These are heavily loaded, narrow roads with no wind or airflow. If you then have a traffic jam, you accumulate levels which are really not healthy any more. And that’s where we have to work. In those cities, probably three or four streets have a problem. And even if you don’t do anything, that will go away in two or three years, because of the renovation of the fleet.”
Diess (pictured below) also flagged public transport as a major issue, with buses being, on average, 13 years old.
He added that the air quality issue is one “we can handle”. He is far more concerned about CO2 and climate change. “What we have to do is more renovation of the car fleet, which is why we’ve bought back 160,000 cars already and scrapped them.”
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He said he wanted to “get the decision off the table” on diesel bans in cities. He highlighted that the ruling emphasised that the move was only a worse-case scenario. “I think we can avoid it,” he said.
“We will be able to sort the situation. I would make one of the four lanes found in many cities exclusively for electric vehicles and the thing is solved basically. You invest in public transport; it’s easy to solve.”
Despite the ongoing demonisation of diesel – reflected in a year-on-year drop of 24% and 20% in diesel car sales in Germany and UK respectively in February – Diess said he still believes diesel will be the number one option for long-distance drivers for five or 10 years yet.
He added: “We need diesel to be able to cope with our CO2 fleet targets. We think diesel is part of the solution, not the problem.”
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