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Home >> Mercedes Benz >> 2017 >> GLS550 >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 166 Chassis >> Maintenance >> Replace Coolant - AP20.00-P-2080EW

Replace Coolant - AP20.00-P-2080EW

Engine 156, 157, 271, 272, 273, 274, 276, 278, 642, 651 in model 212 

Engine 157, 274, 276, 278, 642, 651 in model 218 

Engine 157, 276, 278, 642, 651 in model 166 

Engine 271, 272, 273, 274, 276, 278, 642, 651 in model 207 

MODIFICATION NOTES

06.07.2015 cooling system Engine in Model 166 BF20.00-P-1001-02EA
06.07.2015 cooling system Engine in Model 212, 218 BF20.00-P-1001-02EA

Shown on model 212 

G14134683Courtesy of MERCEDES-BENZ USA
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
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 overpressure. 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 
INSPECT Check     
1 Check coolant level MODEL 166 AP20.30-P-2050GB 
    MODEL 207, 212, 218 AP20.30-P-2050EW
REMOVING Remove     
2 Drain coolant    
REFER TO TESTING & REPAIR   Engine 274 in model 207, 212, 218 AR20.00-P-1142MR
REFER TO TESTING & REPAIR   ENGINE 651 in MODEL 212.098/298 AR20.00-P-1142EH
REFER TO TESTING & REPAIR   ENGINE 157, 276, 278, 642, 651 in MODEL 166 AR20.00-P-1142GQ 
REFER TO TESTING & REPAIR   ENGINE 271 in MODEL 212 ENGINE 271. 272, 273, 642, 651 in MODEL 207 AR20.00-P-1142CW
REFER TO TESTING & REPAIR   Engine 276.8 in model 207 AR20.00-P-1142A
REFER TO TESTING & REPAIR   ENGINE 276.9, 278 in MODEL 207 AR20.00-P-1142FH
REFER TO TESTING & REPAIR   ENGINE 272, 273 in MODEL 212 AR20.00-P-1142EWS
REFER TO TESTING & REPAIR   Engine 642 in model 212, 218 AR20.00-P-1142OGE
REFER TO TESTING & REPAIR   ENGINE 651 in MODEL 212 (except 212.098/298), 218 AR20.00-P-1142OMA
REFER TO TESTING & REPAIR   ENGINE 156 in MODEL 212 AR20.00-P-1142CMG
REFER TO TESTING & REPAIR   Engine 157, 276, 278 in model 212, 218 AR20.00-P-1142EL
INSTALLING Install     
3 Pour in new coolant    
REFER TO TESTING & REPAIR   Engine 274 in model 207, 212, 218 AR20.00-P-1142MR
REFER TO TESTING & REPAIR   ENGINE 651 in MODEL 212.098/298 AR20.00-P-1142EH
REFER TO TESTING & REPAIR   ENGINE 157, 276, 278, 642, 651 in MODEL 166 AR20.00-P-1142GQ 
REFER TO TESTING & REPAIR   ENGINE 271 in MODEL 212 ENGINE 271, 272, 273, 642, 651 in MODEL 207 AR20.00-P-1142CW
REFER TO TESTING & REPAIR   Engine 276, 278 in model 207 AR20.00-P-1142FH
REFER TO TESTING & REPAIR   ENGINE 272, 273 in MODEL 212 AR20.00-P-1142EWS
REFER TO TESTING & REPAIR   Engine 642 in model 212, 218 AR20.00-P-1142OGE
REFER TO TESTING & REPAIR   ENGINE 651 in MODEL 212 (except 212.098/298), 218 AR20.00-P-1142OMA
REFER TO TESTING & REPAIR   ENGINE 156 in MODEL 212 AR20.00-P-1142CMG
REFER TO TESTING & REPAIR   Engine 157, 276, 278 in model 212, 218 AR20.00-P-1142EL
    NOTES
An engine filled with type 30 antifreeze must not be filled later on with conventional coolant as per Sheet 325.0 or 325.2. Type 30 antifreeze may not be mixed with other antifreezes and it must  be replaced every 3 years  !
Engine damage can occur otherwise.
IMPORTANT A special antifreeze (type 30) is available for the "light alloy corrosion in cooling circuit" repair case. Indications of light alloy corrosion in the cooling circuit are: 
  • Sludging or gel formation in cooling system
  • Engine overheating
  • Flow rate deficiency in cooler

In these cases, a warning label (model 30) is to be attached in a well-visible spot on the coolant expansion reservoir.
IMPORTANT Use antifreeze model 30 if warning label (model 30) is present on the coolant expansion reservoir.
IMPORTANT ENGINE 207, 212
Do (2) not  fill the coolant expansion reservoir to the lower edge of the marking bar only, because at extremely low outside temperatures it is possible that the instrument cluster will briefly display a coolant level message.
The coolant expansion reservoir (2) may be filled when warm or cold to the lower edge of the filler neck  .
IMPORTANT Use approved anti-corrosion and antifreeze agents only.		  
    FLUID SPECIFICATION Coolant mixing ratio *BF20.00-P-1001-04A 
    FLUID SPECIFICATION Engine 156 in model 212Cooling system *BF20.00-P-1001-02U 
    FLUID SPECIFICATION ENGINE 157 in MODEL 166, 212, 218 Cooling system *BF20.00-P-1001-02FA 
    FLUID SPECIFICATION Engine 271.8 in model 207, 212 Engine 271.9 in model 212Cooling system *BF20.00-P-1001-02P 
    FLUID SPECIFICATION Engine 274 in model 207
Engine 274 in model 212 (except 212.035)
Engine 274 in model 212.035
Engine 274 in model 218Cooling system		 *BF20.00-P-1001-02CA 
    FLUID SPECIFICATION ENGINE 276 in MODEL 166, 218 ENGINE 276.8 in MODEL 207, 212 ENGINE 276.9 in MODEL 207, 212 Cooling system *BF20.00-P-1001-02BA 
    FLUID SPECIFICATION ENGINE 278 in MODEL 166, 207, 212, 218 Cooling system *BF20.00-P-1001-02EA 
    FLUID SPECIFICATION ENGINE 642 in MODEL 166, 212, 218 ENGINE 642 in MODEL 207.323/423 ENGINE 642 in MODEL 207.326/426Cooling system *BF20.00-P-1001-02W 
    FLUID SPECIFICATION ENGINE 651, 212, 207 in MODEL 166, 218 Cooling system *BF20.00-P-1001-02AA 
COOLING SYSTEM

Number Designation Engine 651 in model 166 Engine 651 in model 204, 207, 212 (except 212.098/298)
BF20.00-P-1001-02AA Cooling system Workshop replacement amount Main circuit Liter ≈ 10, 0 ≈ 10, 0
Low temperature circuit Liter - -
Antifreeze/water
coolant		 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-0325-00A BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 651 in model 212.098/298 Engine 651 in model 218
BF20.00-P-1001-02AA Cooling system Workshop replacement amount Main circuit Liter ≈ 10, 0 ≈ 10, 4
Low temperature circuit Liter ≈ 1, 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-0325-00A BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 276 in model 166 except code ME05 (Hybrid drive 85 kW-94 kW variant (incl.. plug-in)) Engine 276 in model 166 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl.. plug-in))
BF20.00-P-1001-02BA Cooling system Workshop replacement amount Main circuit L ≈ 10, 5 ≈ 9, 7
Low-temperature circuit L ≈ 1, 9 ≈ 6, 0
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-0325-00A BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 276.8 in model 207 (except 207.365/465) Engine 276.8 in model 207.365/465
BF20.00-P-1001-02BA Cooling system Workshop replacement amount Main circuit L ≈ 10, 3 ≈ 10, 3
Low-temperature circuit L - ≈ 1, 9
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-0325-00A BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 276.9 in model 207 Engine 276.8 in model 212
BF20.00-P-1001-02BA Cooling system Workshop replacement amount Main circuit L ≈ 9, 6 ≈ 10, 3
Low-temperature circuit L - ≈ 1, 9
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-0325-00A BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 276.9 in model 212 (except 212.095/195) Engine 276.9 in model 212.095/195
BF20.00-P-1001-02BA Cooling system Workshop replacement amount Main circuit L ≈ 9, 6 ≈ 8, 4
Low-temperature circuit L - ≈ 2, 7
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-0325-00A BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 276 in model 218
BF20.00-P-1001-02BA Cooling system Workshop replacement amount Main circuit L ≈ 9, 6
Low-temperature circuit L -
Antifreeze/water Up to -37°C % 50/50
As of -38°C % 55/45
Specifications for Operating Fluids, sheet BB00.40-P-0310-01A
Specifications for Operating Fluids, sheet BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 274 in model 207 Engine 274 in model 212 (except 212.035)
BF20.00-P-1001-02CA Cooling system Workshop replacement amount Main circuit L ≈ 8, 5 ≈ 8, 5
Low-temperature circuit L - -
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-0325-00A BB00.40-P-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 274 in model 212.035 Engine 274 in model 218
BF20.00-P-1001-02CA Cooling system Workshop replacement amount Main circuit L ≈ 8, 5 ≈ 8, 5
Low-temperature circuit L ≈ 2, 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-0325-00A BB00.40-P-0325-06A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A BB00.40-P-0326-06A
COOLING SYSTEM

Number Designation Engine 278 in model 166 Engine 278 in model 207
BF20.00-P-1001-02EA Cooling system Workshop replacement quantity Main circuit Liter ≈ 11, 4 ≈ 10, 9
Low temperature circuit Liter ≈ 2, 5 ≈ 2, 2
Antifreeze/water Up to -37°C % 50/50 50/50
As of -38°C % 55/45 55/45
Specification BB00.40-P-0310-01A BB00.40-P-0310-01A
Specification BB00.40-P-0325-00A BB00.40-P-0325-00A
Specification BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 278 in model 212, 218
BF20.00-P-1001-02EA Cooling system Workshop replacement quantity Main circuit Liter ≈ 10, 9
Low temperature circuit Liter ≈ 2, 2
Antifreeze/water Up to -37°C % 50/50
As of -38°C % 55/45
Specification BB00.40-P-0310-01A
Specification BB00.40-P-0325-00A
Specification BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 157 in model 166 Engine 157 in model 212
BF20.00-P-1001-02FA Cooling system Workshop replacement amount Main circuit Liter ≈ 8 ≈ 8
Low temperature circuit Liter ≈ 2 ≈ 2
Antifreeze/water Down to -37°C % 50/50 50/50
-38°C and below % 55/45 55/45
Specification BB00.40-P-0310-01A BB00.40-P-0310-01A
Specification BB00.40-P-0325-00A BB00.40-P-0325-00A
Specification BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 157 in model 218
BF20.00-P-1001-02FA Cooling system Workshop replacement amount Main circuit Liter ≈ 8, 5
Low temperature circuit Liter ≈ 2, 5
Antifreeze/water Down to -37°C % 50/50
-38°C and below % 55/45
Specification BB00.40-P-0310-01A
Specification BB00.40-P-0325-00A
Specification BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 271.8 in model 204, 207, 212 Engine 271.9
BF20.00-P-1001-02P Cooling system Workshop replacement quantity   Liter ≈ 7, 5 ≈ 5, 6
Antifreeze/water Up to -37°C % 50/50 50/50
As of -38°C % 55/45 55/45
Specification BB00.40-P-0310-01A BB00.40-P-0310-01A
Specification BB00.40-P-0325-00A BB00.40-P-0325-00A
Specification BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 156 in model 212
BF20.00-P-1001-02U Cooling system Workshop
replacement amount		 Main circuit Liter ≈ 10, 0
Low-temperature 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-0325-00A
Specifications for Operating Fluids, sheet BB00.40-P-0326-00A
-25_°C -
Specifications for Operating Fluids, sheet -
Specifications for Operating Fluids, sheet -
COOLING SYSTEM

Number Designation Engine 642 in model 166 Engine 642 in model 207.323/423
BF20.00-P-1001-02W Cooling system Workshop replacement amount Main circuit L ≈ 11, 5 ≈ 12, 3
Low-temperature circuit L - -
Antifreeze/water Down to -37°C % 50/50 50/50
-38°C and below % 55/45 55/45
Specification BB00.40-P-0310-01A BB00.40-P-0310-01A
Specification BB00.40-P-0325-00A BB00.40-P-0325-00A
Specification BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 642 in model 207.326/426 Engine 642 in model 212
BF20.00-P-1001-02W Cooling system Workshop replacement amount Main circuit L ≈ 10, 8 ≈ 10, 8
Low-temperature circuit L - -
Antifreeze/water Down to -37°C % 50/50 50/50
-38°C and below % 55/45 55/45
Specification BB00.40-P-0310-01A BB00.40-P-0310-01A
Specification BB00.40-P-0325-00A BB00.40-P-0325-00A
Specification BB00.40-P-0326-00A BB00.40-P-0326-00A
COOLING SYSTEM

Number Designation Engine 642 in model 218
BF20.00-P-1001-02W Cooling system Workshop replacement amount Main circuit L ≈ 10, 8
Low-temperature circuit L -
Antifreeze/water Down to -37°C % 50/50
-38°C and below % 55/45
Specification BB00.40-P-0310-01A
Specification BB00.40-P-0325-00A
Specification BB00.40-P-0326-00A
COOLANT MIXING RATIO

Number Designation All engines, except engine 178 in model 190.381
BF20.00-P-1001-04A Coolant mixing ratio Antifreeze/water Up to -25°C % -
Up to -37°C % 50/50
As of -38°C % 55/45
Overview and specifications sheet BB00.40-P-0310-01A
References to sheet specification BB00.40-P-0310ZZ
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