11 33 050 Removing and installing or replacing all rocker arms (N20, N26)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

Necessary preliminary tasks:

IMPORTANT: Roller cam followers (1) on intake side are divided into bearing classes.
The tolerance classes are marked according to the graphic in numbers from 1 to 5.
Already used roller cam followers (1) may only be reused in the same position.

Fig 1: Roller Cam Followers

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Detach roller cam followers (1) from hydraulic valve clearance compensating element and remove.

Place all roller cam followers (1) in neat order on special tool 11 4 481 .

Installation note:

Prior to installation of intermediate levers, ensure proper installation position of roller cam followers (1).

Classification of roller cam follower intake.

Standard: Number 3. standard.

Number 2. slow idle.

Number 4. fast idle.

In case of repair: rough idling speed.

Repair: 1

Number 1. lower engine speed in idle.

Number 5. higher engine speed in idle.

Fig 2: Roller Cam Followers Number

Courtesy of BMW OF NORTH AMERICA, INC.

Detach roller cam follower (1) on exhaust side from hydraulic valve clearance compensating element and remove.

Place all roller cam followers (1) in neat order on special tool 11 4 482 .

Installation note:

Prior to installation of exhaust camshaft, ensure proper installation position of roller cam followers (1).

Fig 3: Roller Cam Follower

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Remove hydraulic valve clearance compensating element (1) on intake side in direction of arrow.

Installation note:

If hydraulic valve clearance compensating elements (1) are reused, they must be placed together with rocker arms in neat order in special tool 11 4 481 .

Fig 4: Removing Hydraulic Valve Clearance Compensating Elements

Courtesy of BMW OF NORTH AMERICA, INC.

Remove hydraulic valve clearance compensating element (1) on exhaust side in direction of arrow.

Installation note:

If hydraulic valve clearance compensating elements (1) are reused, they must be placed together with rocker arms in neat order in special tool 11 4 482 .

Fig 5: Removing HVCA Element

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME; if necessary, readjust uniform mixture distribution.