Transmission fluid

[Tom44]

hi would it be OK to use this for me audi a3 tdi 140 bkd 6 speed manual 54 plate 

[spartacus 68]

Quick scan on Autodoc, pretty sure it’s 75W-80, API GL4+. Castrol Transmax compatible with VW G 052 171. Not particularly expensive.

Always loosen fill plug first, if you drain it and find that seized, you’re in a world of pain.

Think it takes 2.3 litres. Double check that with Audi.