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Home >> Mercedes Benz >> 2012 >> Sprinter 2500, Van Crew Extended >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System -- Model 906 (Engine 642) >> Testing & Repair >> Drain Coolant, Fill Up And Check Cooling System For Leaks - Ar20.00-D-1140SD

Drain Coolant, Fill Up And Check Cooling System For Leaks - Ar20.00-D-1140SD

ENGINES 642.898 in MODEL 906 

Shown on engine 646.985 

Fig 1: Expansion Reservoir & Drain Valve Component Location
G08211630Courtesy of MERCEDES-BENZ USA
DRAIN COOLANT, FILL UP AND CHECK COOLING SYSTEM FOR LEAKS - ENGINE 642 IN MODEL 906

  Drain     
DANGER Risk of injury  to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning  caused by 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 
1 Unscrew cap from expansion reservoir (1) IMPORTANT Turn cap on expansion reservoir (1) anti-clockwise by half a revolution, release overpressure, then unscrew cap on expansion reservoir (1).  
2 Lift/jack up vehicle   AR00.60-D-1000H
3 Fasten drain hose at drain valve (2) SPECIAL TOOL Cooler vacuum filling device Fig 2
4 Open drain plug at drain valve (2) and drain coolant IMPORTANT Catch coolant in a suitable vessel. During disposal of coolant observe legal regulations and local waste water disposal regulations!  
5 Close exhaust valve on drain valve (2) IMPORTANT To do this detach drain hose.  
  Filling     
6 Pour in coolant and bleed cooling system SPECIAL TOOL Cooler vacuum filling device
SPECIAL TOOL Tester cap
Engine 642, 646, 651
FLUID SPECIFICATION
Engines 271, 272
FLUID SPECIFICATION
AR20.00-D-1142-04SD 
Fig 2
Fig 3
ENGINE COOLANT CAPACITY & SPECIFICATIONS - ENGINES 642, 646, 651 
IMPORTANT Note on coolant level    
7 Inspect cooling system for leaks IMPORTANT When removing components within the coolant circuit. AR20.00-S-1010S 
ENGINE COOLANT CAPACITY & SPECIFICATIONS - ENGINES 642

Number Designation Engine 642.898
BF20.00-N-1001-01A Coolant Total filling capacity Liters 10
Anticorrosion/antifreeze agent Liters down to -37°C Liters 5
Anticorrosion/antifreeze agent Liters down to -45°C Liters 5.5
Specifications for Operating Fluids Sheet BB00.40-P-0310-01A
Sheet BB00.40-P-0325-00A
Fig 2: Identifying Vacuum-Type Cooling System Filler (285 589 00 21 00)
G08211631Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Tester Cap (639 589 00 91 00)
G08211632Courtesy of MERCEDES-BENZ USA