A visitor inspects an Audi Q5 model during the Imported Auto Expo in Beijing, China, September 24, 2015. REUTERS/Kim Kyung-Hoon

BERLIN (Reuters) - Audi VOWG_p.DE said 2.1 million cars worldwide were fitted with the software that allowed parent Volkswagen to cheat U.S. emission tests.

Some 1.42 million Audi vehicles with so-called EU5 engines are affected in Western Europe, with 577,000 in Germany and almost 13,000 in the United States, a spokesman for Ingolstadt-based Audi said on Monday.

Affected model lines include the A1, A3, A4, A5, A6, TT, Q3 and Q5, the spokesman said.

VW said last week around 11 million cars of its group brands worldwide are affected by the diesel emissions scandal.