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12/28/18
Wolfsburg, Germany
Technology

Volkswagen advises against hardware retrofits for diesel cars

  • Not all Euro 5 vehicles can be retrofitted and not all of them will achieve emissions of less than 270 mg/km
  • The stark differences in the condition of the vehicles to be retrofitted leads to risks regarding functionality and emissions
  • The increased component load may lead to long-term secondary damage and therefore limited reliability

Volkswagen continues to take a critical view of the planned retrofitting of diesel cars with the emission standard Euro 5 and discourages its customers from having hardware retrofitted by third-party providers. “All of the concepts that we know of so far bring disadvantages for our customers such as increased fuel consumption and therefore increased CO2 emissions, and even a reduction in performance in some cases”, warns Frank Welsch, Head of Technical Development at Volkswagen. Moreover, contrary to other claims, not all Euro 5 vehicles can be retrofitted and not all will achieve emissions of less than 270 mg/km, which would allow them to be exempted from the upcoming driving bans. In addition to this, Volkswagen believes that the long-term functional reliability of the technology cannot be guaranteed.

Volkswagen advises against hardware retrofits for diesel cars
In red: Component changes required for retrofitting the hardware on the underbody of a Euro 5 vehicle.

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