Page 2345 of 4133
Shown on exhaust valve seat ring    
Fig. 118: Identifying Dimension 
- Shown On Exhaust Valve Seat Ring  
Shown on exhaust side    
BE05.30-P- 
1005-03CDistance between contact 
face of cylinder head and  
end face of valve seat ringIntakemm8.50...8.588.16...8.36
Exhaustmm9.57...9.657.99...8.19
BE05.30-P-
1006-03CBasic bore diameter of inlet 
valve seat rings in cylinder  
headStandardmm39.000...39.01634.000...34.016
Rep. size 1mm40.200...40.21635.200...35.216
BE05.30-P- 
1007-03CBasic bore diameter of 
exhaust valve seat rings in  
cylinder headStandardmm44.000...44.01637.000...37.016
Rep. size 1mm45.200...45.21638.200...38.216
BE05.30-P-
1008-03CBore depth of 
valve seat  
rings in  
cylinder headIntakeStandardmm14,4013,99
ExhaustStandardmm17,4714,16
 
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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 th  e 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
 
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ENGINE 113 in MODELS 129, 163, 202, 203, 208, 209, 210, 211, 215, 220, 230    
Fig. 121: Identifying Basic Bore Of Valve Seat Ring   (Intake) And Basic Bore Of Valve Seat Ring 
(Exhaust)  
Modification notes   
25.2.04Value changed from  
0.084...0.110 mm to  
0.074...0.1 mmFigure in BE05.30-P-1004-03C for  
engine 112.910/911 modified*BE05.30-P-1004-
03C
25.2.04Value changed from 
0.084...0.110 mm to  
0.074...0.1 mmFigure revised in BE05.30-P-1004-03C  
in case of engine  
112.912/914/915/920/921/922/923/940/  
941/942/943/944/945/946/947/948/960/  
961, 113.940/941/942/943/944*BE05.30-P-1004-
03C
25.2.04Value changed from  
0.084...0.110 mm to  
0.074...0.1 mmFigure revised in BE05.30-P-1004-03C  
in case of engine  
113.960/961/962/963/965/967/968/  
980/981/982/984/987/988/990/991 /992*BE05.30-P-1004-
03C
  Remove/install  
1Remove valves AR05.30-P-3511AV
2Inspect valve guide inner 
diameter for wear If the measurements 
obtained for the valve  
guide are not within the  
specified tolerance ?AR05.30-P-3731-06AV
 
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        Page 2348 of 4133

Test values for valve seat rings  
Replace valve guide.AR05.30-P-3731AV
3Turn valve seat ring out of  
the cylinder head with  
ring seat turning tool Pay attention to  
operating instructions of  
ring seat turning tool. 
 *WE58.40-Z-1009-21A
 *WE58.40-Z-1010-21A
4Measure diameter of valve  
seat ring basic bore (D1,  
D2) in the cylinder head Overlap between valve 
seat ring and basic bore  
must be assured.*BE05.30-P-1006-03C
*BE05.30-P-1007-03C  
*BE05.30
-P-1004-03C
If the measurements  
obtained deviate from the  
test  
values: ? machine basic  
bores to the next oversize  
of the valve seat rings  
Pay attention to inspection  
and machining  
dimensions of the valve  
seat rings and of the basic  
bore ? 
Inspection and machining 
dimensions of valve seat  
ringsAR05.30-P-3831-03AV
 Risk of injury   to skin and  
eyes caused by handling  
hot or glowing objects.Wear safety gloves,  
protective clothing and  
safety glasses, if 
necessary.AS00.00-Z-0002-01A 
5Heat cylinder head in 
recirculated heating  
cabinet or heating oven Temperature approx.  
80 °C 
 *WH58.30-Z-1001-28A
 *WH58.30-Z-1003-28A
8Drive in valve seat ring  
using a suitable drift  
9Machine valve seat rings   After installing a new  
valve seat ring, the valve  
must always be replaced.AR05.30-P-4511AV
10Install in the reverse order  
NumberDesignationEngine 112.910/  
911Engine 112.912/
914/915/920/  
921/922/923/  
940/941/942/  
943/944/945/ 
 
2004 Mercedes-Benz ML350 
1998-2005 ENGINE Engine timing - 163 Chassis  
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        Page 2349 of 4133

Test values for valve seat rings   
Commercially available tools    
Workshop equipment   
946/947/948/  
951/960/961,  
113.940/941/94  
2/943/944
BE05.30-P-
1004-03CValve seat ring - 
overlap in  
cylinder headIntakemm0.084...0.1150.084...0.115
Exhaustmm0.074...0.1000.074...0.100
BE05.30-P- 
1006-03CBasic bore 
diameter of inlet  
valve seat rings  
in cylinder headStandardmm31.000...31.01637.000...37.016
Rep. size 1mm32.000...32.01638.200...38.216
BE05.30-P-
1007-03CBasic bore 
diameter of  
exhaust valve  
seat rings in  
cylinder headStandardmm35.000... 35.01642.000... 42.016
Rep. size 1mm36.200...36.21643.200...43.216
NumberDesignation
Engine  
113.960/  
961/962/963/  
964/965/967/  
968/971/980/  
981/982/984/  
987/988/990/  
991/992/993/  
995
BE05.30-P-1004-
03CValve seat ring - overlap in cylinder headIntakemm0.084...0.115
Exhaustmm0.074...0.100
BE05.30-P-1006- 
03CBasic bore diameter of inlet valve seat rings in 
cylinder headStandardmm39.000...39.016
Rep. size  
1mm40.200...40.216
BE05.30-P-1007- 
03CBasic bore diameter of exhaust valve seat rings in 
cylinder headStandardmm44.000...44.016
Rep. size  
1mm45.200...45.216
NumberDesignation
WH58.30-Z-1001-28ARecirculated air warming cabinet
WH58.30-Z-1003-28AHeating oven
WE58.40-Z-1009-21AValve seat turning device
WE58.40-Z-1010-21AValve seat turning device
 
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MEASURE VALVE SETBACK TO CYLI NDER HEAD - AR05.30-P-4100-01AV
Modification notes  
Test and adjustment values of cylinder head    
Test and adjustment values of cylinder head    
Workshop equipment    
Shown on engine 606     
1. Measure valve setback (a) with depth caliper 
gage. 
25.3.04Value changed from 8.50...8.90  
mm to 8.05...8.45 mmValue in series 1001, exhaust valve, for engine 
113.962/982/987/990/991/993 changed 
25.3.04Value changed from 7.90...8.30  
mm to 7.20...7.60 mmValue in series 1001, intake valve, for engine 
113.962/982/987/990/991/993 changed 
NumberDesignationEngines 112,  
113.940/941/  
942/943/944/  
945/946/948  
except 112.976Engine 112.976
BE01.30-P- 
1001-02DValve setback of 
new valves and 
new valve seat  
ringsExhaust valvemm8.05...8.458.50...8.90
Intake valvemm7.60...8.007.90...8.30
NumberDesignationEngine  
113.960/961/  
963/965/966/  
967/968/980/  
981/984/986/  
992/995Engine 113.987/
988/989/  
990/991/  
993
BE01.30-P- 
1001-02DValve setback of 
new valves and  
new valve seat  
ringsExhaust valvemm8.5...8.98.05...8.45
Intake valvemm7.90...8.307.20...7.60
WE58.40-Z-1002-19ADepth gage
 
2004 Mercedes-Benz ML350 
1998-2005 ENGINE Engine timing - 163 Chassis  
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Fig. 122: Identifying Valve Setback - Shown On Engine 606 
CHECK VALVES - AR05.30-P-4201-01AV 
Modification notes   
Test values for valves    
Test values for valves   
19.11.04Value changed from 45 (±15') mm to  
45 (+15') mmFigure for series 1003 for engine 
112 complete*BE05.30-P-1003-
01E
NumberDesignationEngine  
112.910/911Engine 
112.912/913/  
914/915/920/  
921/922/923/  
940/941/942/  
943/944/945/ 
946/947/948/  
949/960Engine  
112.951
BE05.30-P-
1001-01EValve disk 
dia.Exhaustmm34±0,141±0,141 ±0,1
Intakemm30±0,136±0,136±0,1
BE05.30-P- 
1002-01EValve disk 
heightExhaust when 
newmm1.61.61.6
Intake valve  
when newmm1.21.21.2
BE05.30-P- 
1003-01EValve seat 
angle (a)ExhaustAngle°45 (+15')45 (+15')45 (+15')
IntakeAngle°45 (+15')45 (+15')45 (+15')
BE05.30-P- 
1004-01EValve stem 
dia.Exhaustmm6,9706,9706.970 (-0.02)
Intakemm6,9756,9756.975 (-0.015)
BE05.30-P- 
1005-01EValve lengthExhaustmm121,65±0,2122,25±0,2122,25 (±0,2)
Intakemm120,70±0,2119,40±0,2119,40 (±0,2)
NumberDesignationEngines 
113.940/941/  
942/943/944Engine  
113.960/  
961/962/963/ Engine  
137.970
 
2004 Mercedes-Benz ML350 
1998-2005 ENGINE Engine timing - 163 Chassis  
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        Page 2352 of 4133
Fig. 123: Identifying Valve Dimensions 
CHECKING AND MACHINING DIMENSIONS  FOR VALVE SEATS - AR05.30-P-4510-01AV 
Test values for valve seat rings 
965/967/968/  
980/981/982/  
984/987/988/  
990/991/992/  
993/995
BE05.30-P-
1001-01EValve disk 
dia.Exhaustmm41±0,143±0,136±0,1
Intakemm36±0,138±0,133±0,1
BE05.30-P-
1002-01EValve disk 
heightExhaust when 
newmm1.61.61.6
Intake valve 
when newmm1.21.21.1
BE05.30-P- 
1003-01EValve seat 
angle(aExhaust)Angle°45±15'45±15'45±15'
IntakeAngle°45±15'45±15'45±15'
BE05.30-P- 
1004-01EValve stem 
dia.Exhaustmm6,9706,9706,970
Intakemm6,9756,9755,975
BE05.30-P- 
1005-01EValve lengthExhaustmm122,25±0,2121,80±0,2104,30 ±0,2
Intakemm119,40±0,2119,10±0,2103,60 ±0,2
NumberDesignationEngine  
112.910/  
911Engine 112.912/ 
914/915/920/  
921/922/923/  
940/941/942/  
943/944/945/ 
 
2004 Mercedes-Benz ML350 
1998-2005 ENGINE Engine timing - 163 Chassis  
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Saturday, October 02, 2010 3:39:39 PMPage 111 © 2006 Mitchell Repair Information Company, LLC.