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Remove/Install/Replace Heater/Coolant Circulation Pump - AR83.25-P-1170LW

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Model 205 

Model 253 

MODIFICATION NOTES

03.06.2016 Carry out visual inspection for leaks in area of coolant circulation pump (M13/5), added. Operation step 10  
22.06.2016 Cooling system ENGINE 274 in MODEL 253 (except 253.354/954) BF20.00-P-1001-02CA
22.06.2016 Cooling system Engine 274 in model 253.954 BF20.00-P-1001-02CA
04.04.2019 Cooling system Engine 274 in model 253.353/354/953/954 BF20.00-P-1001-02CA
Fig 1: Heater/Coolant Circulation Pump Components Location - Model 253
G14547160Courtesy 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 coolant Model 205 with engine 177, 274, 276, 626, 651
Model 253 with engine 274, 276, 642, 651		 AH20.00-P-2080-01KOA
REMOVINGINSTALLING Remove/install     
1 Carefully open cap on expansion reservoir    
2 Detach right front fender liner in front area until coolant circulation pump (M13/5) is accessible   AR88.10-P-1300LW
3 Release and disconnect electrical connector from coolant circulation pump (M13/5)    
4 Disconnect coolant hoses (2, 3) SPECIAL TOOL Clamp Fig 6
5 Release clamps (4) on coolant hoses (2, 3) and pull back SPECIAL TOOL Hose clamp pliers Fig 4
6 Detach coolant hoses (2, 3) from coolant circulation pump (M13/5) and collect escaping coolant using suitable container    
7 Remove coolant circulation pump (M13/5) from elastomer bracket (5)    
8 Install in the reverse order    
9 Add coolant and bleed engine cooling system Model 205 with engine 626 AR20.00-P-1142-04B
    Model 205 with engine 177, 274, 276, 651
Model 253 with engine 274, 276, 642, 651		 AR20.00-P-1142-04A
    FLUID SPECIFICATION Model 205 with engine 626Cooling system *BF20.00-P-1001-02JA 
    FLUID SPECIFICATION Model 205 with engine 177.9Cooling system *BF20.00-P-1001-02LA 
    FLUID SPECIFICATION Model 205.040/042/043/044/045/048/049/140/143/148/248/340/342/345/348/349 with engine 274
Model 205.142/145/240/242/243/244/245 with engine 274
Model 253 (except 253.954) with engine 274
Model 253.954 with engine 274Cooling system		 *BF20.00-P-1001-02CA 
    FLUID SPECIFICATION Model 205.064/066/164/264/266/364/464 with engine 276
Model 253 with engine 276Cooling system		 *BF20.00-P-1001-02BA 
    FLUID SPECIFICATION Model 205.012/212 with engine 651
Model 253 with engine 651 Cooling system		 *BF20.00-P-1001-02AA 
    FLUID SPECIFICATION Model 253 with engine 642Cooling system *BF20.00-P-1001-02W 
    SPECIAL TOOL NTKL Adaption Fig 2
    SPECIAL TOOL Electric vacuum pump Fig 5
    SPECIAL TOOL Test cap Fig 3
    SPECIAL TOOL Cooler vacuum filling device Fig 7
INSPECT Check     
10 Carry out visual inspection for leaks in area of coolant circulation pump (M13/5)    
COOLING SYSTEM

Number Designation Engine 651 in model 205.012/212 Engine 651 in model 253
BF20.00-P-1001-02AA Cooling system Workshop replacement amount Main circuit Liter ≈ 11, 0 ≈ 10, 0
Low temperature circuit Liter ≈ 3, 7 ≈ 2, 5
Antifreeze/water Down to -37° C % 50/50 50/50
-38°C and below % 55/45 55/45
Specifications for Operating Fluids, sheet BB00.40-P-0310-01A BB00.40-P-0310-01A
Specifications for Operating Fluids, sheet BB00.40-P-0325-06A BB00.40-P-0325-06A
Specifications for Operating Fluids, sheet BB00.40-P-0326-06A BB00.40-P-0326-06A
COOLING SYSTEM

Number Designation Engine 276 in model 205.064/066/164/264/266/364/366/464/466 Engine 276 in model 253
BF20.00-P-1001-02BA Cooling system Workshop replacement amount Main circuit L ≈ 10, 9 ≈ 9, 5
Low-temperature circuit L ≈ 3, 0 ≈ 2, 5
Antifreeze/water Up to -37°C % 50/50 50/50
As of -38°C % 55/45 55/45
Specifications for Operating Fluids, sheet BB00.40-P-0310-01A BB00.40-P-0310-01A
Specifications for Operating Fluids, sheet BB00.40-P-0325-06A BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-06A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 274 in model 205.040/042/043/044/045/048/049/140/142/143/145/148/240/242/243/244/245/248/340/342/343/345/348/349/440/442/443/445/448/449 Engine 274 in model 253 (except 253.353/354/953/954)
BF20.00-P-1001-02CA Cooling system Workshop replacement amount Main circuit L ≈ 9, 0 ≈ 9, 0
Low-temperature circuit L ≈ 3, 0 ≈ 5, 0
Antifreeze/water Down to -37°C % 50/50 50/50
-38°C and below % 55/45 55/45
Specifications for Operating Fluids, sheet BB00.40-P-0310-01A BB00.40-P-0310-01A
Specifications for Operating Fluids, sheet BB00.40-P-0325-06A BB00.40-P-0325-06A
Specifications for Operating Fluids, sheet
 		 BB00.40-P-0326-06A BB00.40-P-0326-06A
COOLING SYSTEM

Number Designation Engine 274 in model 253.353/354/953/954
BF20.00-P-1001-02CA Cooling system Workshop replacement amount Main circuit L ≈ 16, 0
Low-temperature circuit L -
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-0326-06A
COOLING SYSTEM

Number Designation Engine 626
BF20.00-P-1001-02JA Cooling system Workshop replacement quantity   Liter ≈ 10, 3
Antifreeze/water Up to -37°C % 50/50
As of -38°C % 55/45
Specifications for Operating Fluids, sheet BB00.40-P-0325-06A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 177 in model 205
BF20.00-P-1001-02LA Cooling system Workshop replacement amount Main circuit Liter ≈ 11, 1
NT1-circuit Liter ≈ 4, 6
NT2-circuit Liter -
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-0326-06A
COOLING SYSTEM

Number Designation Engine 642 in model 253
BF20.00-P-1001-02W Cooling system Workshop replacement amount Main circuit L ≈ 13, 0
Low-temperature circuit L ≈ 2, 5
Antifreeze/water Down to -37°C % 50/50
-38°C and below % 55/45
Specifications BB00.40-P-0310-01A
Specifications BB00.40-P-0325-06A
Specifications BB00.40-P-0326-06A
Fig 2: Identifying NTKL Adaption (285 589 01 21 00)
G14547161Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Test Cap (210 589 00 91 00)
G12618396Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Hose Clamp Pliers (000 589 03 37 00)
G11973011Courtesy of MERCEDES-BENZ USA
Fig 5: Identifying Electric Vacuum Pump (285 589 02 21 00)
G13656435Courtesy of MERCEDES-BENZ USA
Fig 6: Identifying Clamp (000 589 40 37 00)
G11065548Courtesy of MERCEDES-BENZ USA
Fig 7: Identifying Cooler Vacuum Filling Device (285 589 00 21 00)
G12618419Courtesy of MERCEDES-BENZ USA
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