Fuel, Exhaust & Engine Electrics
Page 2.19
Fuel Injector Retainer Components
Fuel Pressure Sensor
The fuel pressure sensor is installed on the central high pressure rail
under the intake system and informs the Motronic control unit about the
current pressure in the fuel high pressure system. The Motronic control
unit evaluates the signal and regulates the fuel pressure on the high
pressure side via the flow control valve.
A - Buffer
B - Disc spring
C - Lock washer
D - Rib to prevent in correct assembly