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Remove/install timing case cover - AR01.40-P-8000M

ENGINES 275 

Shown on engine 275.950 

Fig 1: Identifying Timing Case Cover Remove/Install Components - Shown On Engine 275.950 (1 Of 2)
G10108099Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Timing Case Cover Remove/Install Components - Shown On Engine 275.950 (2 Of 2)
G10108100Courtesy of MERCEDES-BENZ USA
MODIFICATION NOTES

28.5.08 Clean sealing surfaces - added Step 12  
REMOVINGINSTALLING Remove/install     
1.1 Remove engine Model 215, 220 except 220 with code (979) Special protection version, code (Z04) Light armoring or code (Z07) Highest protection
Model 220 with code (979) Special protection version, code (Z04) Light armoring or code (Z07) Highest protection
AR01.10-P-2400MC
1.2 Remove engine with front axle carrier Model 230 without code (P99) Special model "AMG Black Series" AR01.10-P-2500RC
Model 230 with code (P99) Special model "AMG Black Series" AR01.10-P-2500RBS
Model 216, 221 AR01.10-P-2500SZ
2 Mount engine onto assembly stand Model 215, 220  
3 Remove cylinder heads   AR01.30-P-5800M 
4 Detach air pump (1) Model 215, 220 AR14.30-P-7251L
Model 230 AR14.30-P-7251R
Model 216, 221 AR14.30-P-7251SZ
5 Remove poly-V belt tensioning device (2) Model 215, 220 AR13.25-P-3200L
Model 230 AR13.25-P-3200RR
Model 216, 221 AR13.20-P-0001SZ
6 Remove alternator (G2) Model 215, 220 AR15.40-P-5032LA
Model 230 without code (P99) Special model "AMG Black Series" AR15.40-P-5032RA
Model 230 with code (P99) Special model "AMG Black Series" AR15.40-P-5032RBS
Model 216, 221 except 216.379, 221.179 AR15.40-P-5032SZ
Model 216.379, 221.179 AR15.40-P-5032SXM
7 Remove belt pulley/vibration damper (3)   AR03.30-P-1600L
8 Detach power steering pump (5) Model 215, 220 except 220 with code (979) Special protection version, code (Z04) Light armoring or code (Z07) Highest protection
Model 220 with code (979) Special protection version, code (Z04) Light armoring or code (Z07) Highest protection
AR46.30-P-0500M
Model 230 without code (P99) Special model "AMG Black Series" AR46.30-P-0500RB
Model 230 with code (P99) Special model "AMG Black Series" AR46.30-P-0500RBS
Model 216, 221 except 221 with code Z07 Top protection AR46.30-P-0500SYA
Model 221 with code Z07 Top protection AR46.30-P-0500SX
9 Remove bolts (6) from timing case cover (7) IMPORTANT The timing case cover (7) can be removed with coolant pump fitted. The connecting bolts between timing case cover and coolant pump are not  removed in this process.
IMPORTANT Observe bolt chart for timing case cover:
For dismounted coolant pump:
 
Bolt plan for timing case cover
For mounted coolant pump:
AR01.40-P-8000-01L
Bolt plan for timing case cover AR01.40-P-8000-01LA
TORQUE SPECIFICATION *BA01.40-P-1001-01C 
10 Remove timing case cover (7) NOTES In order to avoid plugging of oil ducts, ensure that no sealant enters the oil ducts.
IMPORTANT Replace sealing rings of timing case cover and observe application of sealant: ↓
 
IMPORTANT Notes on sealant path for timing case cover AH01.40-P-1000-01C
  SPECIAL TOOL Figure
  Loctite 5970 sealant
NOTES In order to avoid leakage the front crankshaft radial sealing ring (8) must be replaced: ↓
*BR00.45-Z-1013-01A 
  Replace front crankshaft radial seal. AR03.20-P-3000-01B
  SPECIAL TOOL Fig 4
INSPECT Checking     
11 Check coolant pump (4) Check coolant pump for wear and leaktightness, and, if necessary: ↓  
Replace coolant pump AR20.10-P-1271MC
See bolt plan for coolant pump. AR20.10-P-1271-03L
TORQUE SPECIFICATION *BA20.10-P-1004-01C 
CLEAN Clean     
12 Clean sealing surfaces NOTES Do not use any sharp-edged tools or abrasive paper as this will damage the sealing surfaces. AR01.00-P-0050-01A
Loctite 7200 *BR00.45-Z-1038-04A 
Loctite 7063 cleaning spray (150 ml) *BR00.45-Z-1046-04A 
13 Install in the reverse order    
CYLINDER CRANKCASE, TIMING CASE COVER, END COVER

Number Designation Engine 275, 285
BA01.40-P-1001-01C Timing case cover to crankcase Nm 14
COOLANT PUMP, COOLANT THERMOSTAT

Number Designation Engines 137, 275
BA20.10-P-1004-01C Coolant pump on timing case M7 Nm 14
Fig 3: Identifying Squeeze Gun (112 589 00 25 00)
G07742708Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Sleeve (119 589 01 14 00)
G10108102Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1013-01A Loctite 5970 sealant A 003 989 98 20
BR00.45-Z-1038-04A Loctite 7200 Henkel Loctite Deutschland GmbH
BR00.45-Z-1046-04A Loctite 7063 cleaning spray (150 ml) A 001 986 71 71 10