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Home >> Mercedes Benz >> 2019 >> S450 Base >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Cooling Systems >> Engine Cooling System - 222 Chassis (1 Of 2) >> Testing & Repair >> Remove/Install Additional Engine Radiator >> Remove/Install Additional Engine Radiator - AR20.20-P-3867MNL

Remove/Install Additional Engine Radiator - AR20.20-P-3867MNL

Engine 176 In Model 217, 222 

Fig 1: Additional Engine Radiator Components Location - Engine 176 In 222
G15362588Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  to skin and eyes suffering scalding from contact with hot coolantspray. 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 
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 avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVINGINSTALLING Remove/install     
1 Drain off coolant   AR20.00-P-1142MNL 
    INSTALLATION IMPORTANT Do not install center and from lower engine compartment lining until after leak test.  
2 Remove coolant lines (3) from additional engine radiator (1) TORQUE SPECIFICATION M6X1 *BA00.10-P-1002-04A 
3 Unclip air duct segment (2)    
4 Remove additional engine radiator (1) in downward direction    
5 Install in the reverse order    
WARNING 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
6 Perform an engine test run and check engine for proper operation and leaktightness    
7 Install center and front lower engine compartment paneling   AR61.20-P-1105LF
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