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Remove/install radiator - AR20.20-P-3865ELB

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ENGINE 157 in MODEL 212, 218 with TRANSMISSION 722.93 

ENGINE 157 in MODEL 212, 218 with TRANSMISSION 722.97 

ENGINE 278 in MODEL 207, 212, 218 

Shown on model 212.073 

Fig 1: Radiator Remove/Install Components - Shown On Model 212.073
G09975358DANGERDANGERREMOVINGINSTALLINGIMPORTANTINSTALLATION IMPORTANTTORQUE SPECIFICATIONSPECIAL TOOLIMPORTANTINSPECTDANGERCourtesy of MERCEDES-BENZ USA
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
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
REMOVINGINSTALLING Remove/install     
1 Remove engine air intake ducts (1) upstream of air filter    
2 Remove cold air intake (2) and central reinforcement (3) ENGINE 157 in MODEL 218 with TRANSMISSION 722.9 (except 722.971)
ENGINE 278 in MODEL 218
AR62.30-P-1570EL
ENGINE 157 in MODEL 212 with TRANSMISSION 722.9 (except 722.97)
ENGINE 278 in MODEL 207
ENGINE 278 in MODEL 212
IMPORTANT See "Replace front area with reinforcement at the front completely".
AR62.30-P-1570EW
3 Remove fan unit (4) ENGINE 278 in MODEL 207 AR20.40-P-5050CW
MODEL 212, 218 with ENGINE 157 with TRANSMISSION 722.9 (except 722.971)
MODEL 212, 218 with ENGINE 278
AR20.40-P-5050EL 
4 Remove lower engine compartment paneling ENGINE 157 in MODEL 212, 218 with TRANSMISSION 722.9 (except 722.971)
ENGINE 278 in MODEL 207, 212, 218
AR61.20-P-1105EW
5 Unclip lower air duct insert (5) on cooler (20)    
6 Drain coolant ENGINE 278 in MODEL 207 AR20.00-P-1142FH
ENGINE 157 in MODEL 212, 218 with TRANSMISSION 722.9 (except 722.971)
ENGINE 278 in MODEL 212, 218
AR20.00-P-1142EL 
7 Drain air conditioning system ENGINE 278 in MODEL 207 AR83.30-P-1760CW
8 Detach refrigerant line (14) at condenser, seal openings of refrigerant line (14) and condenser with suitable stop plugs INSTALLATION IMPORTANT Use new sealing ring. Moisten new sealing ring with compressor oil.  
TORQUE SPECIFICATION Screw/bolt, line to condenser *BA83.30-P-1022-01A 
SPECIAL TOOL Record plug Figure
9 Detach coolant lines (6, 7, 8) from radiator (20)   AR20.20-P-7441-01RQ 
10 Remove coolant line (9)   AR20.20-P-7441-01RQ 
11 Remove left and right air duct insert (10L, 10R) for ATL and engine mount    
12 Unclip cooler from condenser (20) and lift out    
13 Take out radiator (20) in an upward direction IMPORTANT Radiator package consisting of cooler for low-temperature water circuit, oil cooler and condenser for A/C against falling down.  
INSPECT Check     
14 Check cooler (20) for signs of damage Only when reusing the radiator (20).  
15 Install in the reverse order    
16 Check cooling system for leaktightness ENGINE 278 in MODEL 207 AR20.00-P-1010FH
ENGINE 157 in MODEL 212, 218 with TRANSMISSION 722.9 (except 722.971)
ENGINE 278 in MODEL 212, 218
AR20.00-P-1010EL 
DANGER Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
17 Perform an engine test run and check cooling system for proper operation    
AIR CONDITIONING

Number Designation MODEL 207 MODEL 212
BA83.30-P-1022-01A Screw/bolt, line to condenser Nm 8 8
AIR CONDITIONING

Number Designation MODEL 218
BA83.30-P-1022-01A Screw/bolt, line to condenser Nm 8
Fig 2: Identifying Record Plug (129 589 00 91 00)
G09975359Courtesy of MERCEDES-BENZ USA