Sprinter 2500 V6-3.0L DSL Turbo (2008)
Fuel Filler Cap: Description and Operation
Operation
OPERATION
The Fuel Filler Cap incorporates a two-way relief valve that is closed to atmosphere during normal operating conditions. The relief valve is calibrated to
open when a predetermined pressure or vacuum occurs in the fuel tank. When the pressure or vacuum is relieved, the valve returns to the normally closed
position.
WARNING: REMOVE THE FUEL FILLER CAP IN ORDER TO RELEASE FUEL TANK PRESSURE BEFORE DISCONNECTING ANY
FUEL SYSTEM COMPONENT.