Variable Valve Timing Actuator: Service and Repair

WM 153719 Removing and installing solenoid hydraulic valve for camshaft control - Turbo

Tools





Technical values






Preliminary work

1. Remove air cleaner housing.
-> 242519 Removing and installing air cleaner housing - Turbo - section on "Removing" Service and Repair.

Information

- Only remove generator for the solenoid hydraulic valve for cylinder bank 1-3.

2. Remove generator.
-> 272219 Removing and installing generator - section on "Removing" Service and Repair

Removing solenoid hydraulic valve for camshaft control

NOTICE

Dirt and contamination

- Risk of damage to units or components

-> Protect components from dirt and contamination.
-> Clean or replace dirty components.

Information

- The procedure for removing the solenoid hydraulic valve is described using cylinder bank 1-3 as an example.

- The solenoid hydraulic valve for cylinder bank 4-6 -arrow- is removed in the same way. => Solenoid hydraulic valve for cylinder bank 4-6





Solenoid hydraulic valve for cylinder bank 4-6

Information

Specifications for wrench sizes (a/f specifications) for screw heads are described as follows:

- Torx screws: (E.) for external Torx, (T.) for internal Torx.

- Hexagon-head bolts (internal and external hexagon): Wrench size (a/f)

1. Remove solenoid hydraulic valve.
1.1. Pull off cable plug -1- by pressing the spring clamps on the connector. Check installation position!
1.2. Unscrew two external Torx screws (E8, M5 x 12) -2-.
1.3. Pull the solenoid hydraulic valve up and out.
1.4. If the valve is tight, use special tool relay puller 9235 to pull it off. Then protect the valve body with fabric tape.





Screws and cable plug for solenoid hydraulic valve for cylinder bank 1-3

2. Replace O-ring -2-.





Solenoid hydraulic valve (camshaft control)

3. Clean the sealing face on the cylinder head and cover the bore hole.

Installing solenoid hydraulic valve for camshaft control

NOTICE

Dirt and contamination

- Risk of damage to units or components

-> Protect components from dirt and contamination.
-> Clean or replace dirty components.

1. Uncover the bore hole.

Information

Always replace gaskets and O-rings.

- Grease all gaskets (except for the cooling system) with Kluber Syntheso Glep (Part No. 000.043.204.68).

2. Install solenoid hydraulic valve with a new O-ring.
2.1. Insert the solenoid hydraulic valve -1- and check the installation position of the cable plug -arrow-.





Installation position of solenoid hydraulic valve for cylinder bank 1-3

3. Fit and tighten two external Torx screws (E8, M5 x 12) -2-.
=> Tightening torque: 8 Nm (6 ftlb.)





Screws and cable plug for solenoid hydraulic valve for cylinder bank 1-3

4. Push on cable plug.

Subsequent work

1. Install the generator (only for solenoid hydraulic valve for cylinder bank 1-3).
-> 272219 Removing and installing generator - section on "Installing" Service and Repair
2. Install air cleaner housing.
-> 242519 Removing and installing air cleaner housing - Turbo - section on "Installing" Service and Repair