Vacuum Pump to Brake Booster Line (MK4 ALH) 

This line supplies vacuum to the brake booster.  The opposite end connects to the pump at the end of the camshaft.

It is common for this line to become clogged, creating problems with the turbo.  The line is partially made of plastic and therefore prone to cracking.  Additionally, replacing this line can help remedy a low or sinking brake pedal.

This line fits ALH cars only.