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Home >> Mercedes Benz >> 2004 >> G55 >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling -- Testing & Repair -- G-Class (463) >> Testing & Repair >> Inspect cooling system for leaks - AR20.00-P-1010RVK

Inspect cooling system for leaks - AR20.00-P-1010RVK

ENGINE 113.992 in MODEL 230.474 

ENGINE 113.990 in MODELS 211.076/276 

ENGINE 113.991 in MODEL 215.374 

ENGINE 113.991 in MODELS 220.074/174 

ENGINE 113.963 in MODEL 230.475 

ENGINE 112.960 in MODEL 170.466 

ENGINE 112.961 in MODELS 203.065/265 

ENGINE 113.993 in MODELS 463.270/271 

ENGINE 113.995 in MODEL 230.472 

Shown on model 220 

Fig 1: Identifying Expansion Reservoir, Cap, And Tester
G07712675Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  to skin and eyes caused by scalding from contact with hot coolant spray. 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
1 Open 2-stage cap (2) IMPORTANT Rotate 2-stage cap (2) half a revolution in counterclockwise direction, release overpressure, then unscrew 2-stage cap (2).  
2 Set heater control to maximum heat output    
INSPECT Checking     
3 Check coolant level, if required adjust correctly. IMPORTANT If antifreeze protection is insufficient, replace as a separate repair order:

Drain/fill in coolant
 
    Engine 113.992 in model 230.474
Engine 113.995 in model 230.472
Engine 113.990 in models 211.076/276
Engine 113.991 in model 215.374
Engine 113.991 in models 220.074/174
Engine 113.963 in model 230.475
Engine 112.960 in model 170.466
Engine 112.961 in models 203.065/265
AR20.00-P-1142RVK
    Engine 113.993 in models 463.270/271 AR20.00-P-1142GX 
NOTES Notes on coolant   AH20.00-N-2080-01A
NOTES Notes on coolant level Engine 113.992 in model 230.474
Engine 113.995 in model 230.472
Engine 113.990 in models 211.076/276
Engine 113.991 in model 215.374
Engine 113.991 in models 220.074/174
Engine 113.963 in model 230.475
Engine 113.993 in models 463.270/271
AH20.00-P-1142-01V
IMPORTANT Notes on coolant level Engine 112.960 in model 170.466
Engine 112.961 in models 203.065/265
AH20.00-P-1142-01P
4 Mount test cap (3) on expansion reservoir (1) MPECIAL TOOL Test cap Fig 3
5 Connect tester (4) Discharge cooling system with a test pressure of approx. 1, 4 bar.  
    MPECIAL TOOL Pressure pump Fig 2
6 Check tightness of cooling system. IMPORTANT Check cooling and heating hoses as well as their connection points for proper condition and loss of coolant; replace cooling and heating hoses if necessary  
7 Inspect condition and installation at hose clamps; retighten or replace if necessary COMMERCIALLY AVAILABLE TOOLS 6 mm socket hexagon *WH58.30-Z-1001-06A 
    COMMERCIALLY AVAILABLE TOOLS 7 mm socket hexagon *WH58.30-Z-1002-06A 
Fig 2: Identifying Pressure Pump (124 589 24 21 00)
G07712676Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Test Cap (210 589 00 91 00)
G07712677Courtesy of MERCEDES-BENZ USA
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1001-06A 6 mm socket hexagon on flexible shaft for hose clamps with worm drive
WH58.30-Z-1002-06A 7 mm socket hexagon on flexible shaft for hose clamps with worm drive