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Home >> Mercedes Benz >> 2002 >> C240 Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Complete Engine -- Testing & Repair -- 203 Chassis - 1 Of 3 >> Testing & Repair >> Remove, install engine - AR01.10-P-2400PK

Remove, install engine - AR01.10-P-2400PK

ENGINE 111.955 in MODEL 203.045 /245 /745 with TRANSMISSION 722.6 

ENGINE 111.951 in MODEL 203.035 /235 /735 with TRANSMISSION 722.6 

Shown on engine 111.955 

Fig 1: Identifying Engine Remove/Install Components - Shown On Engine 111.955 With Transmission 722.6 (1 Of 3)
G04731277
Fig 2: Identifying Engine Remove/Install Components - Shown On Engine 111.955 With Transmission 722.6 (2 Of 3)
G04731278
Fig 3: Identifying Engine Remove/Install Components - Shown On Engine 111.955 With Transmission 722.6 (3 Of 3)
G04731279
REMOVINGINSTALLING Remove/install     
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between the columns of the and position the four support plates below the lifting platform support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
DANGER Risk of explosion  caused by oxyhydrogen gas. Risk of poisoning and caustic burns  caused by swallowing battery acid. Risk of injury  caused by burns to skin and eyes from battery acid or when handling damaged leadacid batteries No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and safety glasses. Only pour battery acid into suitable and appropriately marked containers. AS54.10-Z-0001-01A
1 Disconnect battery ground cable NOTES Do not attach quiescent current retention unit. AR54.10-P-0003P
NOTES Notes on battery All models AH54.10-P-0001-01A
2 Remove top engine covers (1) IMPORTANTInstallation:  Moisten retaining rubber of engine covers (left) with sliding compound.  
3.1 Remove air filter housing (2) with air recirculation flap actuator (3) IMPORTANT Engine 111.955.  
    Remove air filter housing. AR09.10-P-1150PK
    Remove air recirculation flap actuator with resonance body AR09.50-P-8842PK
3.2 Remove air filter housing IMPORTANT Engine 111.951. AR09.10-P-1150PR
4 Remove charge air duct (4) IMPORTANT Only for engine 111.955. AR09.50-P-8680PK
5 Remove electric fan (5)   AR20.40-P-5000PK
6.1 Loosen poly-V-belt of basic drive (6) and secure to engine IMPORTANT Engine 111.955.  
    Swivel stud bolt (7) at tensioning pulley (8) in anti-clockwise direction for this step (arrow) Installation:  Lock tensioning pulley with pin or drift (9).  
    Inspect poly V-belt (6), replace if necessary ↓  
    Remove poly-V-belt AR13.22-P-1202PK
6.2 Remove poly-V-belt IMPORTANT Engine 111.951. AR13.22-P-1202PR
7 Detach vacuum line (10)    
8 Detach vacuum line (11) from electrical vacuum pump (12) IMPORTANT To do so, press together both clamps of lock and pull out vacuum line.  
9 Detach vacuum line (11) at intake manifold IMPORTANT To do so, press together both clamps of lock and pull out vacuum line.  
10 Detach vacuum line (13) of purge valve    
11 Remove intake fitting and pressure fitting (14) of compressor IMPORTANT Only for engine 111.955. AR09.50-P-8841PK
12 Disconnect engine wiring harness   AR01.00-P-2410PR 
DANGER Risk of explosion  caused by ignition of flammable products, risk of poisoning  caused by inhaling fuel vapors or swallowing fuel as well as risk of injury  to skin and eyes exposed to fuel. No fire, sparks, open flames or smoking. Pour fuels only into suitable and appropriately marked containers.
Wear protective clothing when handling fuel.
AS47.00-Z0001-01A
13 Disconnect fuel line (15) IMPORTANT Release fuel pressure through service valve!  
    Collect fuel.  
    SPECIAL TOOL Pressure hose AS47.00-Z-0001-01A
    TORQUE SPECIFICATION *BA47.25-P-1001-01A 
14 Extract oil from expansion reservoir of power steering pump SPECIAL TOOL Hand pump Fig 4
15 Detach return line (16) and pressure line (17) of power steering pump (18) IMPORTANT Seal connections!  
    NOTESInstallation:  Replace O-ring (19) of pressure line.  
    SPECIAL TOOL Set of plugs Figure
    TORQUE SPECIFICATION *BA46.30-P-1002-01D 
    TORQUE SPECIFICATION *BA46.30-P-1004-01D 
16 Disconnect ground lead (20) from power steering pump (18)    
17 Remove lower engine compartment paneling   AR61.20-P-1105P
18 Drain and collect engine oil NOTESInstallation:  Replace the seal of the oil drain screw.  
    TORQUE SPECIFICATION *BA01.45-P-1003-01A 
    FLUID SPECIFICATION *BF18.00-P-1001-01L 
DANGER Risk of injury  to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant. Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A
19 Drain coolant   AR20.00-P-1142PR
NOTES Notes on coolant Engine all AH20.00-N-2080-01A
20 Detach the front exhaust system (21) on the exhaust manifold. NOTESInstallation:  Install new bolts (22).
Inspect rivet nuts in exhaust manifold, replace if necessary ↓
 
    Replace rivet nuts in exhaust manifold. AR49.10-P-5531-01DA
    TORQUE SPECIFICATION *BA49.10-P-1005-01F 
21 Remove bracket (23) of exhaust system NOTESInstallation:   
    Inspect tapping plate (24), replace if necessary  
    TORQUE SPECIFICATION *BA49.10-P-1003-01F 
    TORQUE SPECIFICATION *BA49.10-P-1004-01F 
22 Take off propeller shaft (25) at transmission TORQUE SPECIFICATION *BA41.10-P-1001-01A 
23 Detach selector lever rod (26) from transmission NOTESInstallation:  Check fuse (27), replace if necessary.  
24 Detach connection hoses (28) at automatic transmission oil lines and connect using connection piece (29) IMPORTANT Seal connections!  
    SPECIAL TOOL Set of plugs Figure
REFER TO SHOP-MADE TOOLS Connection fitting for automatic oil pipes   WF58.50-P-2020-01A
25 Unscrew engine mount bolts (30) at front axle carrier TORQUE SPECIFICATION *BA22.10-P-1008-01A 
26 Detach coolant lines (31, 32) at thermostat housing (33) NOTESInstallation:  Inspect hose clamps and coolant lines, replace if necessary.  
    COMMERCIALLY AVAILABLE TOOLS *WH58.30-Z-1001-06A 
    COMMERCIALLY AVAILABLE TOOLS *WH58.30-Z-1002-06A 
27 Detach coolant lines (34, 35) at coolant pump NOTESInstallation:  Inspect hose clamps and coolant lines, replace if necessary.  
    COMMERCIALLY AVAILABLE TOOLS *WH58.30-Z-1001-06A 
    COMMERCIALLY AVAILABLE TOOLS *WH58.30-Z-1002-06A 
28 Detach coolant line (36) for heater IMPORTANT Push back clamp (37) until it locks in place; pull out coolant line.  
    NOTESInstallation:  Check coolant line, replace if necessary.  
    Replace seal of coolant line.  
29 Disconnect connector (38) for refrigerant compressor (39)    
30 Dismount coolant compressor (39) IMPORTANT Secure coolant compressor in bottom of engine compartment with lines connected.  
    TORQUE SPECIFICATION *BA83.55-P-1001-01F 
31 Remove engine crossmember (40) with mount NOTES Support transmission with car jack for this step.  
    TORQUE SPECIFICATION *BA22.10-P-1003-01A 
    TORQUE SPECIFICATION *BA22.10-P-1006-01A 
32 Attach guard plate for radiator / condenser    
REFER TO SHOP-MADE TOOLS Guard plate for radiator / condenser   WF58.50-P-0110-01A
33 Attach engine hoist to engine lifting eyes COMMERCIALLY AVAILABLE TOOLS *WE58.40-Z-1012-11A 
34 Attach engine hoist to lifting eyes of engine IMPORTANT Lower the support (car jack) below the transmission for this step.  
35 Install in the reverse order    
36 Inspect cooling system for leaks NOTES If fitting new cylinder head gasket, bring engine to operating temperature beforehand. AR20.00-P-1010P
DANGER Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near engine Secure vehicle to prevent it from moving.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.
AS00.00-Z-0005-01A
37 Check oil level in automatic transmission and correct if necessary.   AR27.00-P-0101P
38 Run engine and inspect for leaks    
39 Read out fault memory and erase IMPORTANT STAR diagnosis!  
TORQUE SPECIFICATION OIL PAN

Number Designation Engine 111.951/955/958
BA01.45-P-1003-01A Oil drain screw to oil pan M12 Nm -
M14 Nm 30
TORQUE SPECIFICATION Engine suspension, engine mounts, engine supports

Number Designation Engine 111.951/955/958 in model 203
BA22.10-P-1003-01A Bolt connecting rear engine crossmember to body Nm 40
BA22.10-P-1006-01A Bolt or nut, rear engine mount to transmission Nm 50
BA22.10-P-1008-01A Bolt connecting front engine mounts to front axle carrier Nm 35
TORQUE SPECIFICATION DRIVESHAFT

Number Designation Model 203
BA41.10-P-1001-01A Self-locking nut of flexible joint to transmission or front propeller shaft M10 Nm 40
M12 Nm 60
TORQUE SPECIFICATION POWER STEERING PUMP

Number Designation Model 203.035/043/045/235/245235/245/735/745/747
BA46.30-P-1002-01D Connecting pipe of high-pressure expansion hose/line to power steering pump Nm 45
BA46.30-P-1004-01D Return line to power steering pump Nm 2
TORQUE SPECIFICATION FUEL PIPES/HOSES

Number Designation Engine 111.951/955
BA47.25-P-1001-01A Separation point of feed line engine compartment Nm 25
TORQUE SPECIFICATION EXHAUST SYSTEM

Number Designation Engine 111 in model 203
BA49.10-P-1003-01F Bolt connecting exhaust bracket to transmission Nm 20
BA49.10-P-1004-01F Self-locking nut to front exhaust pipe Nm 20
BA49.10-P-1005-01F Bolt connecting flange connection to exhaust pipes or exhaust manifold Nm 20
TORQUE SPECIFICATION REFRIGERANT COMPRESSOR

Number Designation Engine 111.951 Engine 111.955
BA83.55-P-1001-01F Bolt connecting refrigerant compressor to bracket Nm 20 20
BA83.55-P-1002-01F Bolt connecting refrigerant lines to refrigerant compressor Nm 20 20
FLUID SPECIFICATION CAPACITIES OF ENGINE LUBRICATION SYSTEM

Number Designation Engine 111.951/951/955
BF18.00-P-1001-01L Engine oil Capacity without filter Liters 6.5
Capacity with filter Liters 7.0
Specifications for Operating Fluids Sheet BB00.40-P-0229-01A
Sheet BB00.40-P-0229-03A
Sheet BB00.40-P-0229-05A
Fig 4: Identifying Hand Pump (112 589 00 72 00)
G04731280
Fig 5: Identifying Pressure Hose (119 589 04 63 00)
G04731281
Fig 6: Identifying Set Of Stop Plugs (129 589 00 91 00)
G04731282
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1001-06A 6 mm socket hexagon on flexible shaft for hose clamps with worm drive
WH58.30-Z-1002-06A 7 mm socket hexagon on flexible shaft for hose clamps with worm drive
WORKSHOP EQUIPMENT

WE58.40-Z-1012-11A Load regulator (engine hoist), self-locking