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Home >> Mercedes Benz >> 2021 >> GLC300 Base >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 253 Chassis >> Testing & Repair >> Remove/Install Radiator - AR20.20-P-3865RF

Remove/Install Radiator - AR20.20-P-3865RF

Model 253 with engine 264, 274.9, 276.8, 642, 651 

Shown on engine 651 

Fig 1: Radiator Components Location - Model 253 With Engine 264, 274.9 (Shown On Engine 651)
G14470839Courtesy of MERCEDES-BENZ USA
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
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 overpressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A 
WARNING Risk of injury  . Moving parts can pinch, crush or, in extreme cases even sever extremities. No parts of the body or limbs should be within the operating area of mechanical components when moving components. AS00.00-Z-0009-01A
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
Notice  Notes on coolant   AH20.00-P-2080-01KOA 
Notice  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Notes on coolant level   AH20.00-P-1142-01CW 
REMOVINGINSTALLING Remove/install     
1 Remove fan unit Model 253 with engine 264 AR20.40-P-5050MRP 
    Model 253 with engine 274.9, 276.8, 642, 651
INSTALLATION IMPORTANT Only install upper engine cover after the leak test.
AR20.40-P-5050RF 
2 Drain coolant at cooler (1) Model 253 with engine 264 AR20.00-P-1142MRI 
    Model 253 with engine 274.9, 276.8, 651 AR20.00-P-1142LW 
    Model 253 with engine 642 AR20.00-P-1142OGY
3 Detach vent line (3) on radiator (1)   AR20.20-P-7441-01RQ 
4 Detach coolant hoses (2) at the radiator (1)   AR20.20-P-7441-01RQ 
5 Remove screw/bolts and remove fastening fitting (6) on soundproofing    
6 Remove bolts (4)    
7 Unclip air duct segment (5) on cooler (1)    
8 Pull cooler (1) to the rear, pull out upwards and remove downwards IMPORTANT Aid of helper required.  
9 Install in the reverse order    
10 Check engine Cooling system for leaktightness   AR20.00-P-1010LW