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Home >> Mercedes Benz >> 2021 >> S63 AMG 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 217 Chassis >> Testing & Repair >> Remove/Install Fan Unit >> Remove/Install Fan Unit - AR20.40-P-5050MNM

Remove/Install Fan Unit - AR20.40-P-5050MNM

Engine 177 in model 217, 222 

G15347552Courtesy 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 
WARNING Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
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 Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove upper engine cover INSTALLATION IMPORTANT:  Only install upper engine compartment cover after a leak test.  
2 Remove engine suction air ducts Right engine suction air duct AR09.10-P-1152MNM
    Left engine suction air duct AR09.10-P-1151MNM
3.1 Remove radiator grille Engine 177 in model 222 AR88.40-P-4001LF
3.2 Remove front bumper Engine 177 in model 217 AR88.20-P-2000LC
4 Remove front center reinforcement   AR62.30-P-1570LF
5 Unclip air duct segment (2) with air duct segment (3) and place to one side    
6 Drain off coolant INSTALLATION IMPORTANT:  Do not install center and front lower engine compartment lining until after leak test. AR20.00-P-1142MNL 
7 Remove bracket (5) from fan unit (1)    
8 Remove coolant hose (6) from cooler   AR20.20-P-7441-01RQ 
9 Detach bleed line (4) from cooler   AR20.20-P-7441-01RQ 
10 Release and disconnect electrical connector (7) of fan unit (1)    
11 Remove fan unit (1) upward    
12 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
13 Perform an engine test run and check engine for proper operation and leaktightness    
14 Install center and front lower engine compartment paneling   AR61.20-P-1105LF
15 Install upper engine cover