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Home >> Mercedes Benz >> 2016 >> C300 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Suspension - 205 Chassis (4D Sedan) >> Testing & Repair >> Remove/install front engine mount and/or engine support - AR22.10-P-1260LWA

Remove/install front engine mount and/or engine support - AR22.10-P-1260LWA

Engine 274.9 in model 205 

MODIFICATION NOTES

1.4.15 Perform enable for the high voltage on-board electrical system, added. Operation step 2  
1.4.15 Drain coolant, added. Operation step 5  
1.4.15 Lower vehicle, added. Operation step 7  
1.4.15 Detach coolant hose to heater cooler at bulkhead. added. Operation step 9  
1.4.15 Raise vehicle, added. Operation step 11  
1.4.15 Remove A/C compressor electrical line bracket, added. Operation step 18  
Fig 1: Identifying Front Engine Mount And Engine Support Remove/Install Components
G10132786DANGERDANGERNOTESIMPORTANTREMOVINGINSTALLINGNOTESINSTALLATION IMPORTANTTORQUE SPECIFICATIONIMPORTANTTORQUE SPECIFICATIONTORQUE SPECIFICATIONSPECIAL TOOLTORQUE SPECIFICATIONTORQUE SPECIFICATIONCourtesy of MERCEDES-BENZ USA
DANGER Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. No parts of the body or limbs should be within the operating area when the components are moving. AS00.00-Z-0011-01A
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
NOTES Note on high-voltage battery   AH54.10-P-0006-01MEV
IMPORTANT Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
REMOVINGINSTALLING Remove/install     
1 Detach ground line from battery   AR54.10-P-0003LW
NOTES Notes on battery   AH54.10-P-0001-01A
2 Perform enable for the high voltage on-board electrical system Engine 274.9 in model 205.047/147/247 AR54.10-P-1150LW
3 Remove engine air intake duct upstream of air filter    
4 Remove lower engine compartment paneling   AR61.20-P-1105LW
5 Drain off coolant   AR20.00-P-1142LW
6 Disconnect exhaust system between CAT and disconnect flexible pipe   AR49.10-P-7100LWA
INSTALLATION IMPORTANT Replace clamp if necessary.  
7 Lower vehicle    
8 Remove screw/bolt (1) TORQUE SPECIFICATION Bolt, front engine mount to engine support *BA22.10-P-1001-03E 
9 Detach coolant hose to heater cooler at bulkhead   AR20.20-P-7441-01RQ
10 Mount engine hoist and raise engine   AR33.10-P-0105LW
IMPORTANT Make sure that no cable or lines are damaged when lifting out the engine.  
11 Raise vehicle    
12 Remove screw/bolts (5) and remove engine mount (2) downwards TORQUE SPECIFICATION Bolt, front engine mount to front axle carrier *BA22.10-P-1002-03E 
13 Unclip electrical line for oxygen sensor on heat shield (6) Engine 274.9 in model 205 (except 205.047/147/247)
When removing the right engine support (3)
 
14 Remove screw/bolts (7) and heat shield (6) When removing the right engine support (3)  
TORQUE SPECIFICATION Screw/bolt, heat shield to engine support *BA22.10-P-1003-02A 
15 Unclip electrical line on engine support (3) Engine 274.9 in model 205 (except 205.047/147/247)
When removing the right engine support (3)
 
16 Remove poly-V belt When removing the left engine support (3)  
Engine 274.9 in model 205 (except 205.047/147/247) AR13.20-P-0001MRA
17 Disconnect steering coupling at the steering shaft When removing the left engine support (3)  
Model 205.0 (except 205.047), 205.2 (except 205.247) with engine 274.9
except code 700 (Technology Local Content China)
AR46.10-P-8000-01LW
SPECIAL TOOL Engine mount wrench set Fig 2
18 Remove refrigerant compressor electrical line holder Engine 274.9 in model 205.047/147/247 When removing the left engine support (3)  
19 Detach A/C compressor and place with attached refrigerant lines to one side and secure against falling down When removing the left engine support (3)  
TORQUE SPECIFICATION Bolt, refrigerant compressor to timing case/crankcase/engine support *BA83.55-P-1001-01M 
20 Remove screw/bolts (4) and remove engine support (3) downwards TORQUE SPECIFICATION Screw/bolt, engine support to crankcase *BA22.10-P-1001-02A 
21 Install in the reverse order    
ENGINE SUPPORT (ENGINE SIDE)

Number Designation Engine 274
BA22.10-P-1001-02A Screw/bolt, engine support to crankcase Stage 1 Nm 20
Stage 2 ∠° 90
ENGINE MOUNT, ENGINE SUPPORT (ENGINE SIDE)

Number Designation Model 205 with engine 274, 276, 626, 651
BA22.10-P-1001-03E Bolt, front engine mount to engine support M10   Nm 50
M12 Stage 1 Nm -
Stage 2 ∠° -
ENGINE MOUNT, ENGINE SUPPORT (ENGINE SIDE)

Number Designation Model 205 with engine 274, 276, 626, 651
BA22.10-P-1002-03E Bolt, front engine mount to front axle carrier M8 Nm 30
ENGINE SUPPORT (ENGINE SIDE)

Number Designation Engine 274
BA22.10-P-1003-02A Screw/bolt, heat shield to engine support Nm 10
REFRIGERANT COMPRESSOR

Number Designation Engine 274
BA83.55-P-1001-01M Bolt, refrigerant compressor to timing case/crankcase/engine support Nm 20
Fig 2: Identifying Engine Mount Wrench Set (001 589 01 16 00)
G09982025Courtesy of MERCEDES-BENZ USA