Thread: What is this hose for

I havnt looked yet Pete. But a quick guess would be to the vacuum pump for for brakes

Thanks Josh, finding things in the manual sometimes is an exercise in growing old and tracing them on the car is just about as bad. Really appreciate your time and quick response.
Peter

Yep, one of if not the main vacuum pump clean air supply line for the various vac systems: engine mounts, brakes, turbo control solenoids etc. Mine was cracked and would slip off the plastic nipple on the air filter. Replaced with a bit of new vac hose and larger adapter piece glued on with rubber adhesive (bike tube glue actually). No vac leaks or issues since.