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Remove/Install Timing Case Cover - AR01.40-P-8000MFG

Engine 139 in model 118, 177, 247 

G16054166Courtesy of MERCEDES-BENZ USA
G16054167Courtesy of MERCEDES-BENZ USA
CAUTION Risk of injury  to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.		 AS18.00-Z-0001-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.		 AS00.00-Z-0017-01A
Topical note  Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
Topical note  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Notes on application of flange sealants to seal major assemblies   AH00.00-P-0500-01MNE
REMOVING Remove     
1 Turn engine to top dead center position.   AR01.10-P-1000-01MFG 
    SPECIAL TOOL Counterholder Fig 2
2 Remove flywheel/drive plate.   AR03.30-P-8001MFG
3 Unscrew bolts (25) and remove support (26).    
4 Remove refrigerant compressor.   AR83.55-P-5310MFG
5 Remove end cover with front radial shaft sealing ring.   AR01.40-P-8922MFG 
6 Remove oil pan.   AR01.45-P-7500MFG 
7 Remove camshafts.   AR05.20-P-6992MFG
8 Remove rear radial shaft sealing at crankshaft.   AR03.20-P-3064MFG
9 Remove bolts (20) and remove brackets (21) from crankcase (19).    
10 Remove screw (22).    
11 Unscrew screw (23) and remove bracket (24) from timing case cover (18).    
12 Remove bolts (1 to 17) in reverse order to tightening procedure. Bolt plan for timing case cover AR01.40-P-8000-01MFG 
13 Remove timing case cover (18). NOTES During removal, do not drive in any tool between timing case cover (18) and crankcase (19). Sealing surfaces will otherwise be damaged.  
CLEAN Clean     
14 Clean sealing surfaces. NOTES Do not use any sharp-edged tools or abrasive paper. The sealing surfaces will otherwise be damaged.
Loctite 7063 (400 ml) cleaning spray		 *BR00.45-Z-1046-04A 
INSPECT Check     
15 Check surfaces for damage. If damage is found:
↓
Replace timing case cover (18) and/or crankcase (19).		  
16 Check that fitting sleeves are correctly seated. If fitting sleeves are not correctly seated:
↓
Establish correct seating, replace fitting sleeves if necessary.		  
17 Check cylinder head gasket for damage. If cylinder head gasket is not OK:
↓
Replace cylinder head gasket.		 AR01.30-P-5800MFG 
INSTALLING Install     
18 Install timing case cover (18). Notes on sealant path for timing case cover IMPORTANT Fitting sleeves of crankcase (19) must engage in cutouts in timing case cover (18).
Apply sealant to sealing surface of timing case cover (18).
Observe notes on sealant path.		 AH01.40-P-1000-01MT 
    Sealant, Loctite 5970, 50 ml *BR00.45-Z-1013-01A 
    SPECIAL TOOL Application gun Fig 1
19 Screw in bolts (1 to 17) according to tightening procedure. Bolt plan for timing case cover AR01.40-P-8000-01MFG 
    TORQUE SPECIFICATION Bolt, timing case cover to crankcase *BA01.40-P-1001-01K 
20 Install rear radial shaft sealing at crankshaft.   AR03.20-P-3064MFG
21 Attach bracket (24) to timing case cover (18) and screw in screw (23). TORQUE SPECIFICATION M6x1 *BA00.10-P-1002-04A 
22 Screw in screw (22). TORQUE SPECIFICATION Screw, coolant pump to timing case/crankcase/oil pan *BA20.10-P-1001-01AC 
23 Attach brackets (21) to crankcase (19) and screw in bolts (20). TORQUE SPECIFICATION Screw, coolant line to coolant pipe/cylinder head/crankcase/coolant thermostat/coolant hose/timing case *BA20.10-P-1008-01AC 
24 Install camshafts.   AR05.20-P-6992MFG
25 Install oil pan.   AR01.45-P-7500MFG 
26 Install end cover with front radial shaft sealing ring.   AR01.40-P-8922MFG 
27 Install refrigerant compressor.   AR83.55-P-5310MFG
28 Install support (26) and tighten bolts (25). TORQUE SPECIFICATION Bolt, engine carrier to crankcase/oil pan *BA22.10-P-1001-02E 
29 Install flywheel/drive plate.   AR03.30-P-8001MFG
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6x1 Nm 9 13
CRANKCASE, TIMING CASE COVER, END COVER

Number Designation Engine 139
BA01.40-P-1001-01K Bolt, timing case cover to crankcase M6   Nm -
M8 Stage 1 Nm 20
Stage 2 Nm -
M10   Nm -
COOLANT PUMP, COOLANT THERMOSTAT

Number Designation Engine 139
BA20.10-P-1001-01AC Screw, coolant pump to timing case/crankcase/oil pan Nm 20
COOLANT PUMP, COOLANT THERMOSTAT

Number Designation Engine 139
BA20.10-P-1008-01AC Screw, coolant line to coolant pipe/cylinder head/crankcase/coolant thermostat/coolant hose/timing case M6 Nm 8
ENGINE SUPPORT (ENGINE SIDE)

Number Designation Engine 139
BA22.10-P-1001-02E Bolt, engine carrier to crankcase/oil pan M10 Stage 1 Nm 58
Stage 2 ∠° 90
Fig 1: Identifying Application Gun (112 589 00 25 00)
G09973910Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Counterholder (654 589 00 40 00)
G11971953Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1013-01A Sealant, Loctite 5970, 50 ml A 003 989 98 20 10
BR00.45-Z-1046-04A Loctite 7063 (400 ml) cleaning spray A 001 986 71 71 09
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