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Drain/pour in coolant - AR20.00-P-1142OMA

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ENGINE 651 in MODEL 212 (except 212.098/298), 218, 221 

MODIFICATION NOTES

12.2.14 Work procedure altered and special tools for electrical vacuum pump and NTKL adaptation, added. Operation steps 14 to 26 AR20.00-P-1142-04A
26.9.14 coolant mixing ratio   BF20.00-P-1001-04A
Fig 1: Drain/Pour in Coolant Components
G09975317Courtesy of MERCEDES-BENZ USA
DANGER 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 Notes on coolant    AH20.00-N-2080-01A
  Drain off     
1 Unscrew cap (1) on coolant expansion reservoir (2) IMPORTANT Unscrew cap (1) slowly and relieve excess pressure.  
2.1 Remove bottom section of soundproofing ENGINE 651 in MODEL 212 (except 212.098/298), 218  
AR94.30-P-5300EW
2.2 Remove lower engine compartment paneling ENGINE 651 in MODEL 221  
AR61.20-P-1105SX
3 Push drain hose onto fitting on radiator (3)    
4 Loosen drain screw (4) at radiator and drain coolant. NOTES
Remove radiator drain screw (4) until the coolant flows out.
Permanent damage to the radiator drain screw (4) will occur otherwise.
IMPORTANT Catch coolant in a suitable container.
IMPORTANT Observe regulations to dispose of coolant.
 
5 Tighten radiator drain screw (4) and detach drain hose from fitting at radiator (3).    
6 Slide drain hose onto crankcase drain screw (5)    
7 Unfasten crankcase drain screw (5); drain off coolant IMPORTANT Catch coolant in a suitable container.
IMPORTANT Observe regulations to dispose of coolant.
 
8 Tighten crankcase drain screw (5) and detach drain hose from crankcase drain screw (5) TORQUE SPECIFICATION Coolant drain plug on crankcase *BA20.00-P-1001-02A 
  Pour in     
9 Pour in coolant and ventilate engine cooling system   AR20.00-P-1142-04A 
REFER TO CAPACITIES & SPECIFICATIONS Coolant specifications   Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1
REFER TO CAPACITIES & SPECIFICATIONS Anticorrosion/antifreeze agents (Specification 325.0)   Anticorrosion/antifreeze agents (Specification 325.0). See https://bevo.mercedes-benz.com/index.php?language_id=1
IMPORTANT Use clean coolant again.  
FLUID SPECIFICATION Coolant mixing ratio *BF20.00-P-1001-04A 
SPECIAL TOOL NTKL Adoption Figure
SPECIAL TOOL Electric vacuum pump Figure
SPECIAL TOOL Test cap Figure
SPECIAL TOOL Cooler vacuum filling device Figure
INSPECT Check     
10 Check engine cooling system for leaktightness ENGINE 651 in MODEL 212 (except 212.098/298), 218 AR20.00-P-1010OMA 
ENGINE 651 in MODEL 221 AR20.00-P-1010SX
11.1 Install bottom section of soundproofing ENGINE 651 in MODEL 212 (except 212.098/298), 218  
AR94.30-P-5300EW
11.2 Install lower engine compartment paneling ENGINE 651 in MODEL 221  
AR61.20-P-1105SX
DANGER 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 an engine test run and check engine cooling system for proper operation    
ENGINE COOLING, GENERAL

Number Designation ENGINE 651
BA20.00-P-1001-02A Coolant drain plug on crankcase Nm 12
COOLANT MIXING RATIO

Number Designation ENGINE ALL
BF20.00-P-1001-04A Coolant mixing ratio Antifreeze/water to
-37°C
50/50
Antifreeze/water to
-45°C
55/45
Specification Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1
Fig 2: Identifying Test Cap (210 589 00 91 00)
G09975318Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Electric Vacuum Pump (285 589 02 21 00)
G09975319Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying NTKL Adoption (285 589 01 21 00)
G09975320Courtesy of MERCEDES-BENZ USA
Fig 5: Identifying Cooler Vacuum Filling Device (285 589 00 21 00)
G09975321Courtesy of MERCEDES-BENZ USA