Service manual? What size bolt is this?

[Gareth]

Hi All,

New member here. Proud owner of a 53 plate silver grey CSL. A couple of minor issues with the car I'd like to sort. Hoping you can help.

Firstly the flap on the air box doesn't work, happy to remove flap for now and replace the potentiometer in the future. What is the best way to do this? Searched the technical area and while lots of people say to do it I can't find any instructions, other than it's supposed to be very easy. Also you can see in the pic attached there is a bolt missing from the housing, does anyone know the size, and is there a recommended service manual, exploded diagrams etc. that people buy?

Many thanks

Gareth