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Home >> Mercedes Benz >> 2022 >> GLE450 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Air Intake, Turbocharging -- 167 Chassis (2 Of 2) >> Testing & Repair >> Drain/Fill Low Temperature Circuit Coolant - AR09.41-P-6834MNP

Drain/Fill Low Temperature Circuit Coolant - AR09.41-P-6834MNP

Engine 177 In Model 167 

MODIFICATION NOTES

14.07.2021 Perform ventilation routine of engine management control unit (MCM). Operation step 10.  
16.07.2021 Perform engine test run. Operation step 12.  
G15037143Courtesy of MERCEDES-BENZ USA
G15037144Courtesy of MERCEDES-BENZ USA
G15037145Courtesy 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
Notice  Notes on coolant   AH20.00-P-2080-01KOA
  Notes on coolant level   AH20.00-P-1142-01CW
REMOVING Remove     
1 Remove upper engine cover.    
REFER TO MAINTENANCE     AP01.10-P-2405-01E
2 Remove cap (1) at low-temperature circuit expansion reservoir.    
3 Remove underfloor paneling (3).   AR61.30-P-1001ME
4 Remove front lower engine compartment lining.   AR61.20-P-1105ME
  Drain off     
5 Remove coolant hose (2) at separating point and collect escaping coolant in suitable container.   AR20.20-P-7441-01RQ
6 Remove coolant hoses (4) at battery box (5) separating point and collect escaping coolant in suitable container.   AR20.20-P-7441-01RQ
7 Attach coolant hoses (4) at battery box (5) separating point.   AR20.20-P-7441-01RQ
8 Connect coolant hose (2) at separating point.   AR20.20-P-7441-01RQ
  Pour in     
9 Fill in coolant and bleed low-temperature circuit.   AR20.00-P-1142-04A
    FLUID SPECIFICATION Cooling 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
10 Perform ventilation routine of engine management control unit (MCM).    
REFER TO SELF-DIAGNOSTIC SYSTEMSS     AD00.00-P-2000-06ME
INSPECT Check     
11 Check low-temperature circuit for leak tightness. IMPORTANT Only install upper engine cover and front lower engine compartment lining after leak test. AR09.41-P-1011MNP
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
12 Perform engine test run; in this connection, check engine cooling system for proper operation and leak tightness.    
INSTALLING Install     
13 Install front lower engine compartment lining.   AR61.20-P-1105ME
14 Install underfloor paneling (3).   AR61.30-P-1001ME
15 Install upper engine cover.    
REFER TO MAINTENANCE     AP01.10-P-2405-01E
COOLING SYSTEM

Number Designation Engine 177 in model 167
BF20.00-P-1001-02LA Cooling system Workshop replacement amount Main circuit Liter ≈15, 7
Low-Temp circuit 1 Liter ≈5, 0
Low-Temp circuit 2 Liter -
Antifreeze/water Down to -37°C % 50/50
-38°C and below % 55/45
Fluids Specifications BB00.40-P-0310-01A
Fluids Specifications BB00.40-P-0325-06A
Fluids Specifications BB00.40-P-0326-06A
Fig 1: Identifying NTKL Adaption (285 589 01 21 00)
G13656745Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Test Cap (210 589 00 91 00)
G13656752Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Electric Vacuum Pump (285 589 02 21 00)
G13656747Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Cooler Vacuum Filling Device (285 589 00 21 00)
G12618419Courtesy of MERCEDES-BENZ USA