VW's operating profit margin is expected to range between 4 percent and 5 percent in 2019 despite the negative effects of additional costs for market launches.
Earnings before interest and taxes (EBIT) also increased by 8 percent to 2. 7 billion euros between July and September.
The strongest growth in vehicle deliveries by Volkswagen was reported in the company's domestic market, where sales increased by 58. 1%.
A Porsche spokesperson stressed that an internal problem was the reason for the failure, not an external cyberattack.
With a year-on-year increase of 45. 4 percent, the VW brand registered the "strongest growth" in vehicle deliveries in Europe.
The biggest driver of growth was BMW's sports utility vehicle (SUV) segment. Sales of the company's X models increased by more than one third.
Although revenues increased by 5 percent to 42. 7 billion euros, Daimler's Group earnings before interest and taxes (EBIT) fell to minus 1. 6 billion euros.
The main aim of the partnership would be to develop "driver assistance systems and automated driving on motorways.
In internal writing, workers' union IG Metall warned that only 68,000 instead of 123,000 cars compared to last year will be produced.
Joint procurement of components such as gearboxes and batteries would also be discussed by the two German premium carmakers.
Audi Chief Executive Bram Schot said that his company was now "preparing for new challenges after a challenging year. "