Solenoid valves, cylinders 5-8

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Necessary preliminary tasks

Read out fault memory in DME control unit.
Switch off ignition.
Unlock hose on tank venting valve and disconnect.
Remove left CHARGE AIR COOLER .
Carefully press pipe to one side.

NOTE: Solenoid valve (2) controls the exhaust adjustment unit.

Solenoid valve (4) controls the inlet adjustment unit.

Unlock plug connections of solenoid valves (2 and 4) and disconnect.

Installation note:

Plug connections must snap audibly into place!

Release screws (1 and 3).

Tightening torque 11 36 3AZ .

Pull out solenoid valves (2 and 4).

Fig 1: Identifying Solenoid Valves And Screws

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Installation note:

Replace O-rings (1 and 2) on solenoid valve.

Installation note:

To install solenoid valves, coat both O-rings with engine oil.

If the solenoid valve is to be reused, the filter strainer (see arrow) must be cleaned.

Fig 2: Identifying O-Rings

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NOTE: If a filter element is clogged with dirt, the filter element (filter strainer) may be removed.

Release filter elements (1) at contact edges.

Fig 3: Identifying Filter Elements

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Bend open welding spots on filter element (1) with a screwdriver (2) in direction of arrow until welding spots are opened.

Fig 4: Bending Open Welding Spots On Filter Element Using Screwdriver

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Avoid damaging, e.g. notches or scratches, the solenoid valve housing (see arrows).

Fig 5: Locating Solenoid Valve Housing Surface

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Carefully insert solenoid valves (2 and 4) up to stop.

Ensure correct installation position.

Insert screws (1 and 3) and tighten down.

Tightening torque 11 36 3AZ .

Fig 6: Identifying Solenoid Valves And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Delete fault memory.

Check function of DME control unit.