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Home >> Mercedes Benz >> 2018 >> GLC300 Base >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 253 Chassis >> Testing & Repair >> Drain / Pour In Coolant >> Drain/Pour In Coolant - AR20.00-P-1142MNG

Drain/Pour In Coolant - AR20.00-P-1142MNG

Engine 177 in model 253 

G12817262Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  to skin and eyes suffering 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 
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Notes on coolant   AH20.00-N-2080-01A 
  Notes on coolant level   AH20.00-P-1142-01CW 
  Drain off     
1 Remove cap from expansion reservoir    
2 Remove the front and central sections of the lower engine compartment paneling   AR61.20-P-1105LW
3 Slide drain hose onto drain fitting (2) on cooler (3)    
4 Open drain screw (1), drain coolant and catch it in a suitable container NOTES
Unscrew drain screw (1) only until the coolant flows out.
Permanent damage to the drain screw (1) will occur otherwise.
IMPORTANT Observe regulations to dispose of coolant.
 
  Pour in     
5 Tighten drain screw (1) and detach drain hose    
6 Pour in coolant and ventilate engine cooling system IMPORTANT Use clean coolant again. AR20.00-P-1142-04A 
    FLUID SPECIFICATION Engine 177 in model 253Cooling system *BF20.00-P-1001-02LA 
    SPECIAL TOOL Electric vacuum pump Fig 3
    SPECIAL TOOL NTKL Adaption Fig 1
    SPECIAL TOOL Cooler vacuum filling device Fig 4
    SPECIAL TOOL Test cap Fig 2
7 Check engine cooling system for leaktightness   AR20.00-P-1010MNG 
8 Remove the front and central sections of the lower engine compartment paneling   AR61.20-P-1105LW
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
9 Perform an engine test run, check engine cooling system for proper operation    
COOLING SYSTEM

Number Designation Engine 177 in model 253
BF20.00-P-1001-02LA Cooling system Workshop replacement amount Main circuit Liter ≈ 11, 1
Low-temperature circuit Liter ≈ 4, 6
Antifreeze/water Down to -37°C % 50/50
-38°C and below % 55/45
Specifications for Operating Fluids BB00.40-P-0310-01A
Specifications for Operating Fluids BB00.40-P-0325-06A
Specifications for Operating Fluids BB00.40-P-0326-06A
Fig 1: Identifying NTKL Adaption (285 589 01 21 00)
G12618414Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Test Cap (210 589 00 91 00)
G12618396Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Electric Vacuum Pump (285 589 02 21 00)
G12618417Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Cooler Vacuum Filling Device (285 589 00 21 00)
G12618419Courtesy of MERCEDES-BENZ USA