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Home >> Mercedes Benz >> 2008 >> GL450 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Engine Cooling System - 164 Chassis -- Diesel) >> Testing & Repair >> Drain/fill in coolant - AR20.00-P-1142GZB >> Notes

Drain/fill in coolant - AR20.00-P-1142GZB: Notes

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ENGINES 642 in MODEL 164 

Fig 1: Draining/Filling Coolant
G00544422Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  Draining    
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 
DANGER Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof Keep body parts and limbs well clear of moving parts. AS00.00-Z-0011-01A
NOTES Notes on coolant   AH20.00-N-2080-01A 
1 Unscrew coolant cap (1) at coolant expansion reservoir (2) Turn coolant cap (1) counterclockwise one half-turn, release the pressure, then unscrew coolant cap (1).  
2 Remove bottom section of soundproofing   AR94.30-P-5300GZ 
3 Slide collector siphon hose onto fitting (4) at radiator The fitting (4) is located at bottom left of the radiator.  
4 Open radiator drain plug (3) and drain coolant Collect coolant in coolant container (01a). Observe regulations for disposal of coolant.  
5 Tighten radiator drain plug (3) To do this, remove siphon hose from fitting (4).  
  Filling     
6 Pour in coolant and bleed cooling system Reuse clean coolant. AR20.00-P-1142-04A 
  Coolant specifications Sheet 310.1 BB00.40-P-0310-01A 
  Anticorrosion/antifreeze agents Sheet 325.0 BB00.40-P-0325-00A 
    SPECIAL TOOL Fig 3
    SPECIAL TOOL Fig 2
    FLUID SPECIFICATION *BF20.00-P-1001-02W 
7 Correct coolant level up to marking in coolant expansion reservoir (2)    
IMPORTANT Notes on coolant level   AH20.00-P-1142-01GZB 
  Checking 
8 Close coolant expansion reservoir (2) with coolant cap (1)    
9 Inspecting cooling system for leaks   AR20.00-P-1010GZB 
COOLING SYSTEM

Number Designation Engine 642 in model 164, 251
BF20.00-P-1001-02W Cooling system Quantity changed in workshop ≈ Liters 6.5
Antifreeze/water Up to -37°C 50/50
up to -45°C 55/45
Service specifications Sheet BB00.40-P-0310-01A 
Sheet BB00.40-P-0325-00A 
Fig 2: Identifying Test Cap (210 589 00 91 00)
G07764625Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 3: Identifying Vacuum-Type Cooling System Filler (285 589 00 21 00)
G07077844Courtesy of MERCEDES-BENZ OF NORTH AMERICA.