Audi 5.2 v10 engine question.

[KungFuPanda]

Just reading the Audi self study manual on this engine (yawn). There is discussion of the two throttle valves (throttle bodies) and the intake manifold flaps. Are these one and the same thing?

[Dr G]

Nope; throttle body is just that - the bit that lets air into the manifold.

The manifold flaps are the 'variable intake' type things that shorten the manifold to alter airflow speed into the combustion chamber.

Throttle bodies shown on page 16 and the manifold flap system on 19.

[old No 1]

Dr G did you get my PM?