Timing Plate: Service and Repair

Removing and installing solenoid hydraulic valve (valve lift control)

Removing hydraulic valve for valve lift control

ATTENTION: Risk of oil contamination and blocked oil bores
^ Faulty engine parts, engine damage
^ Absolute cleanliness is essential when working on hydraulic valves.

Note:
^ Handle the hydraulic valve with care; do not turn it at the valve tip or at the safety contact.
^ A seal against leaks cannot be ensured if there is damage in the area of the retainer plate, therefore handle the pliers indicated with care.

Hydraulic valve for valve lift control








1. Remove the side shield on the relevant side of the engine. To do this, unscrew the two M6 Torx screws-arrows-.





2. Disconnect cable plug on hydraulic valve -1- by pressing the clip and pulling off the cable plug.





3. Unscrew two M6 20 inner Torx screws -2- at the valve holder and remove the holder -B- along with the screws.





4. Carefully pull the hydraulic valve with retainer plate -2- out of the cylinder head cover. Make sure that the front spring does not remain in the cylinder head. Observe installation position of the hydraulic valve (position of cable plug connection).

Installing hydraulic valve for valve lift control

Note:
^ Always replace O-ring on hydraulic valve and retainer plate with integrated seal.
^ Observe installation position of hydraulic valve.

1. Before installation, coat the O-ring and the retainer plate seal with engine oil. Then carefully fit the hydraulic valve with retainer plate into the cylinder head cover.





2. Position two M6 20 inner Torx screws complete with holder -Bon the valve and tighten the screws. Tightening Torque: 7.5 ft. lb.





3. Attach cable plug -1-. Make sure that the plug engages audibly.





4. Fit the side shield to the relevant side of the engine. To do this, insert and tighten the two M6 x 16 Torx screws-arrows-. Tightening Torque: 7.5 ft. lb.