Tightening conrod screws - AR03.10-P-6111-02BV

TORQUE SPECIFICATION

Connecting rod

Number	Designation			Engine 112,113
BA03.10-P-1001-01E	Connecting rod bolt	Stage 1	Nm	5
		Stage 2	Nm	25
		Stage 3	∠°	90

Fig 1: Identifying External Torx Set (001 589 76 09 00)

G04605645

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Lubricate thread and bolt head contact surface of conrod bolts with engine oil.
Screw in conrod bolts and tighten to step 1 .
Tighten conrod bolts to step 2 .
Tighten connecting rod bolts using an angle wrench to step 3.
If no torquing angle wrench is available, the connecting rod screws can be torqued further by the specified angle in a single operation using a wrench and tommy bar.

Do not use a flexi-rod torque wrench for tightening in order to avoid any angle errors.

Fig 2: Tightening Conrod Screws With A Torquing Angle Wrench (Shown On Engine 112)
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Shown on engine 112