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Home >> Mercedes Benz >> 2022 >> Sprinter 2500 Van Cargo Extended, 2.1L Eng >> Repair and Diagnosis >> Maintenance >> Procedures >> Engine Cooling System >> Testing & Repair >> Flush Engine Cooling System - Ar20.00-D-1251TS
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Flush Engine Cooling System - Ar20.00-D-1251TS

Engine 642 in model 907 

Engine 651 in model 07 

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
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 pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A
  Notes on coolant   AH20.00-N-2080-01A
  Notes on coolant level   AH20.00-P-1142-01CW
REMOVING Remove     
    Engine 642 in model 907
Engine 651 in model 907
AR20.00D1142TSR
  Flushing     
    Engine 642 in model 907
Engine 651 in model 907
AR20.00-D-1142TSR 
    FLUID SPECIFICATION *BF20.00-N-1001-01A 
    FLUID SPECIFICATION Engine 642, 651 in model 907 *BF20.00-N-1001-01TS
    FLUID SPECIFICATION Engine 642, 651 Mixture ratio for coolant *BF20.00-N-1001-04A 
    SPECIAL TOOL
Test cap
Fig 2
    SPECIAL TOOL Engine 642 in model 907
Engine 651 in model 907
Test cap
Fig 1
    SPECIAL TOOL Cooler vacuum filling device Fig 3
3 Install cap of coolant expansion reservoir.    
4 Start engine and bring to operating temperature at average engine speed. IMPORTANT Maintain the operating temperature (approx. 80°C) for approximately 5 min while the engine is running.  
5 Switch off engine. IMPORTANT Let engine cooling system cool down to at least 50°C.  
    Engine 642 in model 907
Engine 651 in model 907
If coolant residue and/or contamination are still located in the engine cooling system,

repeat rinsing process until coolant residue and/or contamination are removed.
AR20.00-D-1142TSR 
INSTALLING Install     
    Engine 642 in model 907
Engine 651 in model 907
AR20.00-D-1142TSR 
FLUID SPECIFICATION ENGINE COOLING

Number Designation Engine 642.896/898/992/993
BF20.00-N-1001-01A Coolant Total filling capacity Liter ≈10
Corrosion/antifreeze down to -37°C Liter ≈5
Corrosion/antifreeze down to -45°C Liter ≈5,5
Sheet   BB00.40-P-0310-01A
Sheet   BB00.40-P-0325-00A
Sheet   BB00.40-P-0325-06A
Sheet   BB00.40-P-0326-06A
FLUID SPECIFICATION ENGINE COOLING

Number Designation Engine 642 in model 907 except code H12 (Auxiliary hot-water heater) except code H13 (Additional heat exchanger) except code HZ9 (Heater booster) Engine 642 in model 907 with code H12 (Hot-water auxiliary heater) or code H13 (Rear additional heat exchanger) or code HZ9 (Heater booster)
BF20.00-N-1001-01TS Coolant Total filling capacity Liter ≈11,6 ≈14,4
Corrosion/antifreeze down to -37°C Liter ≈5,8 ≈7,2
Corrosion/antifreeze down to -45°C Liter ≈6,4 ≈7,9
Sheet   BB00.40-P-0310-01A BB00.40-P-0310-01A
Sheet   BB00.40-P-0325-05A BB00.40-P-0325-05A
FLUID SPECIFICATION ENGINE COOLING

Number Designation Engine 651 in model 907 except code H12 (Auxiliary hot-water heater) except code H13 (Additional heat exchanger) except code HZ9 (Heater booster) Engine 651 in model 907 with code H12 (Hot-water auxiliary heater) or code H13 (Rear additional heat exchanger) or code HZ9 (Heater booster)
BF20.00-N-1001-01TS Coolant Total filling capacity Liter ≈9,8 ≈12,2
Corrosion/antifreeze down to -37°C Liter ≈4,9 ≈6,1
Corrosion/antifreeze down to -45°C Liter ≈5,4 ≈6,7
Sheet   BB00.40-P-0310-01A BB00.40-P-0310-01A
Sheet   BB00.40-P-0325-05A BB00.40-P-0325-05A
FLUID SPECIFICATION MIXTURE RATIO FOR COOLANT

Number Designation Engine all (BUS, Heavy transporter, Light transporter, TRUCK, UNIMOG)
BF20.00-N-1001-04A Mixture ratio for coolant Antifreeze/water down to -37°C % 50/50
Antifreeze/water down to -45°C % 55/45
Sheet   BB00.40-P-0310-01A
Sheet   BB00.40-P-0325-00A
Sheet   BB00.40-P-0325-05A
Fig 1: Test Cap (210 589 00 91 00)
G13186928
Fig 2: Test Cap (639 589 00 91 00)
G13186929
Fig 3: Cooler Vacuum Filling Device (285 589 00 21 00)
G13186930