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Home >> Mercedes Benz >> 2022 >> GLS63 AMG >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 167 Chassis >> Testing & Repair >> Drain/Pour In Coolant >> Drain/Pour In Coolant - AR20.00-P-1142MNO

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

Engine 176 in model 167 

G14790305Courtesy 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 overpressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A 
Notice  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
WARNING Notes on coolant   AH20.00-P-2080-01KOA 
  Notes on coolant level   AH20.00-P-1142-01CW 
  Drain off     
1 Remove oil cooler of automatic transmission with lines of fan unit connected.   AR27.55-P-1000MSC
2 Remove cap from expansion reservoir.    
3 Remove engine compartment lining from center and front.   AR61.20-P-1105ME
4 Remove nuts (2).    
5 Remove screws (1) and remove strut (3) with brackets (6).    
6 Slide drain hose onto drain fitting (4) at cooler.    
7 Open drain screw (5), drain coolant, and catch it in a suitable container. NOTES Unscrew drain screw (5) only until the coolant drains off.  
    Permanent damage to the drain screw (5) will occur otherwise.  
    IMPORTANT Observe regulations for disposal of coolant.  
  Pour in     
8 Tighten drain screw (5) and remove drain hose.    
9 Position strut (3) with brackets (6), screw in screws (1) and tighten. TORQUE SPECIFICATION Nut/screw, lower crossmember to radiator unit mounting support *BA62.30-P-1006-02I 
10 Tighten nuts (2). TORQUE SPECIFICATION Nut/screw, lower crossmember to radiator unit mounting support *BA62.30-P-1006-02I 
11 Pour in coolant and bleed engine cooling system.   AR20.00-P-1142-04A 
    IMPORTANT Use clean coolant again.  
    FLUID SPECIFICATION Cooling system *BF20.00-P-1001-06A 
    SPECIAL TOOL Test cap Fig 2
    SPECIAL TOOL Cooler vacuum filling device Fig 4
    SPECIAL TOOL NTKL Adaption Fig 1
    SPECIAL TOOL Electric vacuum pump Fig 3
12 Attach oil cooler of automatic transmission to fan unit. IMPORTANT Only install upper engine cover after the leak test. AR27.55-P-1000MSC
13 Check engine cooling system for leak tightness.   AR20.00-P-1011MNO 
WARNING Risk of burn injuries  , suffocation and poisoning when working on the exhaust system and the components connected to it.
Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning  caused by skin contact with solid components of the exhaust.
Wear protective clothing and safety glasses.
Use the extraction system. Move people out of the danger zone.
AS49.00-Z-0001-01A
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
14 Perform engine test run; in this connection, check engine cooling system for proper operation and leak tightness.    
15 Install center and front lower engine compartment lining.   AR61.20-P-1105ME
16 Install upper engine cover.    
REFER TO MAINTENANCE     AP01.10-P-2405-01M
FROND END WITH REINFORCEMENT

Number Designation Model 167
BA62.30-P-1006-02I Nut/screw, lower crossmember to radiator unit mounting support M10 Nm 55
COOLING SYSTEM

Number Designation Engine 176 in model 167
BF20.00-P-1001-06A Cooling system Workshop replacement amount Main circuit Liter ≈15, 7
Low-temperature circuit Liter ≈5, 0
Antifreeze/water Down to -37°C % 50/50
-38°C and below % 55/45
Specifications for Operating Fluids, sheet BB00.40-P-0310-01A
Specifications for Operating Fluids, sheet BB00.40-P-0325-06A
Specifications for Operating Fluids, sheet BB00.40-P-0326-066
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