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Home >> Mercedes Benz >> 2025 >> S580 >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine -- Cooling System (1 Of 2) -- 223 Chassis >> Testing & Repair >> Remove/Install Turbocharger Coolant Feed Line >> Remove/Install Coolant Circuit Feed Line Of Turbochargers - AR20.20-P-1100SC

Remove/Install Coolant Circuit Feed Line Of Turbochargers - AR20.20-P-1100SC

Engine 176 in model 223 

G16190541Courtesy of MERCEDES-BENZ USA
G16190542Courtesy 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 
WARNING Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
Notice  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
Notice  Notes on coolant   AH20.00-P-2080-01KOA 
REMOVINGINSTALLING Remove/install     
1 Remove coolant circuit return line.   AR20.20-P-1101SC 
2 Remove screws (4) at exhaust gas turbochargers. TORQUE SPECIFICATION Bolt, coolant line to turbocharger/cylinder head *BA09.40-P-1004-01ZA 
3 Remove screw (3) at cylinder head. TORQUE SPECIFICATION Bolt, coolant line to turbocharger/cylinder head *BA09.40-P-1004-01ZA 
4 Remove screws (2) at exhaust gas turbochargers. TORQUE SPECIFICATION Bolt, coolant line to turbocharger/cylinder head *BA09.40-P-1004-01ZA 
5 Remove coolant circuit feed line (1) upward. INSTALLATION IMPORTANT Replace sealing rings and coat with lubricant.
Lubricant, rubber assembly 1 L
*BR00.45-Z-1010-06A 
    SPECIAL TOOL Assembly tool Fig 1
6 Install in the reverse order.    
TURBOCHARGER

Number Designation Engine 176
BA09.40-P-1004-01ZA Bolt, coolant line to turbocharger/cylinder head Nm 9
Fig 1: Identifying Assembly Tool (000 589 93 63 00)
G12939678Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1010-06A Lubricant, rubber assembly 1 L A 000 989 03 67