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Home >> BMW >> 2017 >> M240i 2D Convertible, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Variable Valve Lift Control System -- Repair (F22 & F23) >> 11 37 Variable Valve Lift Control System (VALVETRONIC) >> 11 37 020 Removing and installing/replacing servomotor for eccentric shaft (230i and 230i xDrive coupe/convertible)

11 37 020 Removing and installing/replacing servomotor for eccentric shaft (230i and 230i xDrive coupe/convertible)

CAUTION: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary work: 

Removal: 

Unlock and disconnect connector (1).

G12701248Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

G12701249Courtesy of BMW OF NORTH AMERICA, INC.
CAUTION: Risk of damage  to intermediate shaft.

Slacken of intermediate shafts:

Turn servomotor (1) using reversible ratchet (2) and 4 mm  hexagon socket wrench in direction of arrow to left.

NOTE: Do not excessively rotate the shaft, at maximum to the end stop.
G12701250Courtesy of BMW OF NORTH AMERICA, INC.

Remove actuator drive.

Installation: 

Installation note: 

When installing the servomotor for the eccentric shaft, it is essential to apply a thin and even coat of Longtime PD-1 lubricating grease OVERVIEW OF CONSUMABLES 4.1 to the gearing.

Detach and replace gasket (1) in direction of arrow.

G11645314Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Press-in gasket (1) up to limit position on housing.
G11645315Courtesy of BMW OF NORTH AMERICA, INC.

Grease gearing (1) of the servomotor for eccentric shaft (2) in the marked area  .

Parts:  Lubricating grease

G13794950Courtesy of BMW OF NORTH AMERICA, INC.

Insert controller drive (1) as far as the gearing.

Screw in controller drive (1) using reversible ratchet (2) and 4 mm  hexagon socket wrench in direction of arrow up to limit position.

G12701253Courtesy of BMW OF NORTH AMERICA, INC.

Tighten screws (1).

Tightening torque: 11 37 2AZ .

G12701249Courtesy of BMW OF NORTH AMERICA, INC.

Connect the connector (1).

G12701248Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: 

NOTE: Teach-in of the servomotor limit positions for the eccentric shaft possible only with diagnosis  .
Diagnosis path  : Service functions -> Drivetrain -> Engine electronics -> Adjustment functions -> Teach in Valvetronic limit positions.