Tightening diagram of cylinder head bolts - AR01.30-P-5800-01HW

Slacken cylinder head bolts only once engine has cooled down. Slackening cylinder head bolts = in reverse order of tightening diagram Tightening cylinder head bolts = in order of tightening diagram

ENGINE 601 BOLT ASSIGNMENT

Bore	Bolt size
3, 5, 11, 13	M 10x80
2, 4, 6, 8, 10, 12, 14, 16,	18	M 10x102
1, 7, 9, 15, 17	M 10x115
a (chain housing area)	M 8x30
b (fuel filter)	M8x80

Fig 1: Identifying Tightening Diagram Of Cylinder Head Bolts - Engine 601

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

ENGINE 602 BOLT ASSIGNMENT

Bore	Bolt size
3, 5, 11, 13, 19	M 10x80
2, 4, 6, 8, 10, 12, 14,	16, 18, 20, 22	M 10x102
1, 7, 9, 15, 17, 21	M10x115
a (chain housing area)	M 8x30 or M 8x50
b (fuel filter)	M8x80

Fig 2: Identifying Tightening Diagram Of Cylinder Head Bolts - Engine 602

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

ENGINE 603 BOLT ASSIGNMENT

Bore	Bolt size
3, 5, 11, 13, 19, 21	M10x80
2, 4, 6, 8, 10, 12, 14, 16,	18, 20, 22, 24, 26	M 10x102
1, 7, 9, 15, 17, 21, 23, 25	M10x115
a (chain housing area)	M 8x30 or M8x50
b (fuel filter)	M8x80

Fig 3: Identifying Tightening Diagram Of Cylinder Head Bolts - Engine 603

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.