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Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Air Intake, Turbocharging - 463 Chassis >> Testing & Repair >> Remove/Install Upper Coolant Expansion Reservoir For Low-Temperature Circuit >> Remove/Install Lower Coolant Expansion Reservoir For Low-Temperature Circuit - AR09.41-P-0060XGA

Remove/Install Lower Coolant Expansion Reservoir For Low-Temperature Circuit - AR09.41-P-0060XGA

Engine 176 in model 463 

as of model year 2019 

Fig 1: Lower Coolant Expansion Reservoir For Low-Temperature Circuit Components Location - Engine 176 In Model 463 As Of Model Year 2019
G13656372Courtesy 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 pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. AS20.00-Z-0001-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
  Notes on coolant   AH20.00-N-2080-01A
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVINGINSTALLING Remove/install     
1 Remove fan unit. INSTALLATION IMPORTANT : Install lower front engine compartment lining only after leak test. AR20.40-P-5050XGA
2 Remove feed line (4) from upper coolant expansion reservoir for low-temperature circuit and seal openings with suitable stop plugs.   AR20.30-P-0010-02XGA
    SPECIAL TOOL Record plug Fig 3
3 Remove feed line (4) from lower coolant expansion reservoir (5) and seal openings with suitable stop plugs.   AR20.30-P-0010-02XGA
    SPECIAL TOOL Record plug Fig 3
4 Remove coolant hose (1) from lower coolant expansion reservoir (5) and seal openings with suitable stop plug; seal protective cover.   AR20.20-P-7441-01RQ
    SPECIAL TOOL Record plug Fig 3
    SPECIAL TOOL Set of protective caps Fig 2
5 Remove screw (3). TORQUE SPECIFICATION Bolt, low-temperature circuit expansion reservoir at bottom to charge air cooler bracket *BA09.41-P-1010-01X 
6 Unclip vacuum line (2) from lower coolant expansion reservoir (5).    
7 Move lower coolant expansion reservoir (5) in direction of arrow and remove in upward direction.    
8 Install in the reverse order.    
9 Check low-temperature circuit for leak tightness.   AR09.41-P-1011XGA 
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
10 Perform an engine test run and in doing so check low-temperature circuit for proper function.    
11 Install lower front engine compartment lining.   AR61.20-P-1105XG
CHARGE AIR LINE/CHARGE AIR COOLING

Number Designation Engine 176
BA09.41-P-1010-01X Bolt, low-temperature circuit expansion reservoir at bottom to charge air cooler bracket Nm 9
Fig 2: Identifying Set Of Protective Caps (001 589 00 91 00)
G13656373Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Record Plug (129 589 00 91 00)
G13656374Courtesy of MERCEDES-BENZ USA