Which specification does Axle & differential oil need for the Audi A6 2.4 (2005–2008)?

Axle & differential oil for the Audi A6 2.4 (2005–2008): 75W-90, VW 501 50, VW G 005 000.

Which specification does Brake fluid need for the Audi A6 2.4 (2005–2008)?

Brake fluid for the Audi A6 2.4 (2005–2008): VW 501 14 (TL 766-Z), FMVSS 116 DOT 3.

Coolant & antifreeze for the Audi A6 2.4 (2005–2008): ASTM D3306, G12.

Power steering fluid for the Audi A6 2.4 (2005–2008): ZF TE-ML 02K.

For the Audi A6 2.4 (2005–2008), the manufacturer specifies motor oil 5W-40 (VW 502 00, VW 505 00, ACEA A3).