Mercedes-Benz ML320. Manual — part 428

Commercially available tools

INSPECTION AND MACHINING DIMENSIONS OF VALVE SEAT RINGS - AR05.30-P-3831-03AV

Modification notes

Test values for valve seat rings

Repair
stage II
(color:
yellow)

mm

13.140...13.151

13.140...13.151

BE05.30-P-
1002-02D

Bore
diameter in
cylinder
head of
exhaust and
intake valve
guide

Standard
series

mm

12.500...12.511

12.500...12.511

Standard I
series
(color:
blue)

mm

12.520...12.531

12.520...12.531

Repair
stage I
(color: red)

mm

12.700...12.711

12.700...12.711

Repair
stage II
(color:
yellow)

mm

13.100...13.11113.100...13.1 13.100...13.11113.100...13.1

BE05.30-P-
1003-02D

Overlap in cylinder head mm

0.029...0.051

0.029...0.051

BE05.30-P-
1004-02D

Length

L

mm

50

50

BE05.30-P-
1005-02D

Dimension

A

mm

14.3 (±0.2)

14.3 (±0.2)

Number

Designation

WH58.30-Z-1002-12A

Micrometer

23.6.04

BE05.30-P-1009-03C taken away

Number

Designation

Engine
112.910/
911

Engine
112.912/
914/915/920/
921/922/923/
940/941/942/
943/944/945/
946/947/948/
951/960/961,
113.940/941/94
2/943/944

BE05.30-P-

Intake valve seat ring outer- Standard

mm

31.1 (+0.015)

37.1 (+0.015)

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me

Test values for valve seat rings

1001-03C

ø

Rep. size 1

mm

32, 1

38, 3

BE05.30-P-
1002-03C

Exhaust valve seat ring
outer-ø

Standard

mm

35.1 (-0.01)

42.1 (-0.01)

Rep. size 1

mm

36,3

43,3

BE05.30-P-
1003-03C

Height of
valve seat
ring

Intake

Standard

mm

5.9 (-0.08)

5.9 (-0.08)

Rep. size 1

mm

5.9 (-0.08)

5.9 (-0.08)

Exhaust

Standard

mm

7.9 (-0.08)

7.9 (-0.08)

Rep. size 1

mm

7.9 (-0.08)

7.9 (-0.08)

BE05.30-P-
1004-03C

Valve seat ring - overlap in
cylinder head

Intake

mm

0.084...0.115

0.084...0.115

Exhaust

mm

0.074...0.100

0.074...0.100

BE05.30-P-
1005-03C

Distance between contact
face of cylinder head and
end face of valve seat ring

Intake

mm

6.86...6.94

8.22...8.30

Exhaust

mm

9.72...9.80

9.12...9.20

BE05.30-P-
1006-03C

Basic bore diameter of inlet
valve seat rings in cylinder
head

Standard

mm

31.000...31.016 37.000...37.016

Rep. size 1

mm

32.000...32.016 38.200...38.216

BE05.30-P-
1007-03C

Basic bore diameter of
exhaust valve seat rings in
cylinder head

Standard

mm

35.000...35.016 42.000...42.016

Rep. size 1

mm

36.200...36.216 43.200...43.216

BE05.30-P-
1008-03C

Bore depth of
valve seat
rings in
cylinder head

Intake

Standard

mm

12,76

14,12

Exhaust

Standard

mm

17,62

17,02

Number

Designation

Engine
113.960/
961/962/963/
964/965/967/
968/971/980/
981/982/984/
987/988/990/
991/992/993/
995

Engine 137.970

BE05.30-P-
1001-03C

Intake valve seat ring outer-
ø

Standard

mm

39.1 (+0.015)

34,1

Rep. size 1

mm

40,3

35,3

BE05.30-P-
1002-03C

Exhaust valve seat ring
outer-ø

Standard

mm

44.1 (-0.01)

37,1

Rep. size 1

mm

45,3

38,3

BE05.30-P-
1003-03C

Height of
valve seat
ring

Intake

Standard

mm

5.9 (-0.08)

5.9 (-0.08)

Rep. size 1

mm

5.9 (-0.08)

5.9 (-0.08)

Exhaust

Standard

mm

7.9 (-0.08)

5.9 (-0.08)

Rep. size 1

mm

7.9 (-0.08)

5.9 (-0.08)

BE05.30-P-
1004-03C

Valve seat ring - overlap in
cylinder head

Intake

mm

0.084...0.115

0.084...0.115

Exhaust

mm

0.074...0.0100

0.074...0.0100

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me

Shown on exhaust valve seat ring

Fig. 118: Identifying Dimension - Shown On Exhaust Valve Seat Ring

Shown on exhaust side

BE05.30-P-
1005-03C

Distance between contact
face of cylinder head and
end face of valve seat ring

Intake

mm

8.50...8.58

8.16...8.36

Exhaust

mm

9.57...9.65

7.99...8.19

BE05.30-P-
1006-03C

Basic bore diameter of inlet
valve seat rings in cylinder
head

Standard

mm

39.000...39.016 34.000...34.016

Rep. size 1

mm

40.200...40.216 35.200...35.216

BE05.30-P-
1007-03C

Basic bore diameter of
exhaust valve seat rings in
cylinder head

Standard

mm

44.000...44.016 37.000...37.016

Rep. size 1

mm

45.200...45.216 38.200...38.216

BE05.30-P-
1008-03C

Bore depth of
valve seat
rings in
cylinder head

Intake

Standard

mm

14,40

13,99

Exhaust

Standard

mm

17,47

14,16

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me

Fig. 119: Identifying Basic Bore Diameter Of Valve Seat Ring In Cylinder Head - Shown On Exhaust
Side

The overlap of the valve seat ring in the cylinder head is determined as follows: outside diameter of the valve
seat ring (B) minus the basic bore diameter of the valve seat ring in the cylinder head (E).

Fig. 120: Identifying Outside Diameter Of Valve Seat Ring And Basic Bore Diameter Of Valve Seat Ring
In Cylinder Head

REPLACE VALVE SEAT RINGS - AR05.30-P-3831AV

ENGINE 112

ENGINE 112.945 in MODEL 463.209 /232 /233 /244 /245 /250

ENGINE 113.962 in MODEL 463.206 /240 /241 /247 /248 /249 /254

ENGINE 113.982 in MODEL 463.243/246

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me