Vacuum Components

For both the GTDi petrol and TD4 diesel engines, the vacuum required for brake booster operation is created by a vacuum pump mounted at the rear of the cylinder head. The vacuum pump is driven by the intake camshaft.

A rigid plastic pipe connects the vacuum pump to a check valve installed on the front chamber of the brake booster. The pipe length and routing is different for LHD and RHD models.

The check valve maintains the vacuum necessary for brake booster operation and prevents air from entering the front chamber.