Mercedes-Benz ML320. Manual — part 435

Engine 113

Engine 113

Before installing the left cylinder head, it is necessary to apply sealant to the cylinder head gasket in the area

of the timing case cover because of porous areas in the left cylinder head.

Repair note

The sealant must be applied only in the manner shown, with a bead of 2.0 mm ± 0.5mm.

The sealant must be used within 10 min.

The silicone bead must not be spread.

Fig. 6: Identifying Application Of Sealant To Cylinder Head Gasket

INFORMATION ON APPLYING SEALANT TO A CYLINDER HEAD GASKET - AH01.30-P-1000-04VA

Engine 112, 113

If porous points are visible on the cylinder heads or on the rump of the engine in the area of the sealing

surface of the cylinder head gasket, apply sealant at these points.

Repair information:

The sealant must only be applied only with a bead of 2.0 mm ± 0.5 mm.

The sealing compound must be applied within 10 min.

2001 Mercedes-Benz ML320

1998-2005 ENGINE Complete engine - 163 Chassis

me

The sealing compound bead must not be spread.

INFORMATION ON CYLINDER HEAD CONTACT SURFACE - AH01.30-P-1000-05A

Engine 112, 113

The cylinder head contact surface must only be machined if mechanically damaged points are present.

The cylinder head contact surface must not be re-worked (face-ground) if a variation exists in the flatness of the
cylinder head contact surface in the longitudinal direction and transverse direction (distortion).

When the cylinder head is fitted on again, the distortion is compensated for by tightening the cylinder head
bolts.

Stock removal on the cylinder head and at the crankcase of an engine must together be not more than 0.3 mm.

The valve seats must be re-set if the cylinder head separating surface is machined.

INFORMATION FOR ASSIGNING THE CYLINDER HEAD GASKETS - AH01.30-P-1000-06V

Engines 112, 113

The assignment of the applicable cylinder head gasket on the left and right to the matching engine can be
verified when the cylinder heads are installed at the visible round notch between cylinder head and front of
crankcase.

Incorrectly installed cylinder head gaskets, e.g. with marking B instead of A, cause a knocking engine noise,

particularly at high idling speeds, as the pistons touch the projecting cylinder head gasket. If a complaint exists,
replace cylinder head gasket.

Illustration shows M112/113

2001 Mercedes-Benz ML320

1998-2005 ENGINE Complete engine - 163 Chassis

me

Fig. 7: Information For Assigning Cylinder Head Gaskets (1 Of 2)

The assignment of the applicable cylinder head gasket on the left and right to the matching engine can be
verified when the cylinder heads are installed at the visible round notch between cylinder head and front of
crankcase.

Incorrectly installed cylinder head gaskets, e.g. with marking B instead of A, cause a knocking engine noise,

particularly at high idling speeds, as the pistons touch the projecting cylinder head gasket. If a complaint exists,
replace cylinder head gasket.

Illustration shows M112/113

2001 Mercedes-Benz ML320

1998-2005 ENGINE Complete engine - 163 Chassis

me

Fig. 8: Information For Assigning Cylinder Head Gaskets (2 Of 2)

NOTES ON APPLICATION OF SEALANT TIMING CASE COVER - AH01.40-P-1000-01B

Engine 112, 113

Application of sealant to timing case cover

The timing case cover is sealed with a silicone sealant at points A, C, D.

No sealant must be applied to the timing case cover at points B , pressure oil galleries to crankcase, with the

exception around the bolt hole G . Sealant which is applied to the points B , is entrained by the oil flow and
blocks the oil supply drillings of: Main bearings, camshaft bearings, rocker arms and oil spray nozzles.

2001 Mercedes-Benz ML320

1998-2005 ENGINE Complete engine - 163 Chassis

me