VW jetta TDI US-spec

Volkswagen’s fix for its “Dieselgate” affected engines has won approval from Germany’s Federal Motor Transport Authority. The next step is to start a recall campaign for EA189 four-cylinder TDI engines in 1.6 and 2.0 litre forms, and contact customers.

In the plan, cars with the 1.6 TDI will be fitted with a new mesh “flow transformer”. VW says it “calms the swirled air flow in front of the air mass sensor and will thus decisively improve the measuring accuracy of the air mass sensor.” In addition to an engine software update, the entire process could take less than an hour to complete. Just a minor software update for the 2.0 TDI, so it should take half the time.

The updates were designed to ensure the TDI engines meet emission requirements without any adverse effects on performance or fuel consumption. Not every variant has been tested yet, though.

For the 1.2 litre TDI, VW plans to present the “final technical solution” later this month. Like the 2.0 TDI, the fix is expected to be just a software update. There will be no financial compensation for affected European owners, unlike in North America where owners get a “Goodwill Package”.