Examination
Turn on the ignition. A valve click should be heard.
Otherwise, unscrew the electrical wire. Apply voltage to the valve from the battery through the auxiliary wire.
If the solenoid valve is activated, check the wiring according to the wiring diagram and check the power supply of the main DDE relay -1- (white) and fuel pump relay -2- (orange, in relay box).
If the valve does not operate, replace the solenoid valve.
Withdrawal
Switch off the ignition.
Disconnect the ground wire from the battery.
Attention: When the battery is disconnected, the information in the electronic memory devices, such as the engine trouble memory or the radio security code memory, is erased. Disconnect the battery only when the ignition is switched off, so as not to damage the fuel injection system control unit. When disconnecting the battery, follow the instructions in sections "Radio" And "Removing and installing the battery".
Clean the stop valve from the outside.
Unscrew the electrical wire.
Unscrew the stop solenoid valve with a wrench.
Attention: Do not allow the core and spring to fall out. In the de-energized state, the valve core is extended under the action of the built-in spring.
Installation
Insert the stop solenoid valve with a new O-ring. Make sure the spring and piston are in the correct position.
Carefully screw the valve into the high pressure fuel pump and tighten to approx. 20 Nm.
Connect wire to solenoid valve.
Connect ground wire to battery.