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Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Air Intake, Turbocharging - 463 Chassis >> Testing & Repair >> Remove/Install Left Turbocharger >> Remove/Install Left Turbocharger - AR09.40-P-6026XGA

Remove/Install Left Turbocharger - AR09.40-P-6026XGA

Engine 176 in model 463 

as of model year 2019 

G13656301Courtesy of MERCEDES-BENZ USA
G13656302Courtesy of MERCEDES-BENZ USA
G13656303Courtesy of MERCEDES-BENZ USA
G13656304Courtesy of MERCEDES-BENZ USA
G13656305Courtesy of MERCEDES-BENZ USA
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
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
WARNING Risk of burn injuries,  suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning  caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning  caused by skin contact with solid components of the exhaust. Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. AS49.00-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
CAUTION Risk of injury  to skin and eyes due to handling of engine oil. Risk of poisoning  caused by swallowing engine oil Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.
AS18.00-Z-0001-01A
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Notes on coolant   AH20.00-N-2080-01A
REMOVINGINSTALLING Remove/install     
1 Drain off coolant.   AR20.00-P-1142XGA
    INSTALLATION IMPORTANT : Only install lower engine compartment paneling after leak test.  
2 Remove left air filter housing.   AR09.10-P-1151XGA 
    INSTALLATION IMPORTANT : Only install upper engine cover after the leak test.  
3 Remove right air filter housing.   AR09.10-P-1152XGA 
4 Remove ignition coil of cylinders 5 + 6 (T4/2).   AR15.12-P-2008XGA
5 Remove screws (25) and remove heat shield (26) in upward direction. TORQUE SPECIFICATION Bolt, upper heat shield to bracket/side heat shield *BA09.40-P-1006-01ZA 
6 Remove left heat shield from left exhaust gas turbocharger (2).   AR09.40-P-6026-01XGA 
    TORQUE SPECIFICATION Bolt, side heat shield to cylinder head cover *BA09.40-P-1007-01ZA 
7 Remove left and right catalytic converter and secure against falling down. Left catalytic converter AR49.20-P-0101XGA
    Right catalytic converter AR49.20-P-0102XGA
8 Remove boot (71) from left exhaust gas turbocharger (2) and place to one side. TORQUE SPECIFICATION Clamp, boot to exhaust gas turbocharger/air filter *BA01.20-P-1003-01J 
9 Remove vacuum hose (11) from left exhaust gas turbocharger (2).    
10 Remove oil feed line (31) from left exhaust gas turbocharger (2) and seal openings with suitable stop plugs.   AR09.40-P-6040XGA 
    SPECIAL TOOL Record plug Fig 1
11 Remove coolant return line (7) with bleed line (10) and seal openings with suitable stop plugs.   AR20.20-P-1101XGA
    SPECIAL TOOL Record plug Fig 1
12 Remove coolant feed pipe (8) from left exhaust gas turbocharger (2) and from left cylinder head and seal openings with suitable stop plugs.   AR20.20-P-1100XGA
    SPECIAL TOOL Record plug Fig 1
13 Remove top coolant expansion reservoir for low-temperature circuit and place to one side with connected lines.   AR09.41-P-0050XGA 
14 Remove charge air hose from left exhaust gas turbocharger (2). TORQUE SPECIFICATION Bolt, clamp for charge air hose to charge-air distributor *BA09.41-P-1002-01X 
15 Remove clamp (5). INSTALLATION IMPORTANT : Replace clamp (5).
INSTALLATION IMPORTANT : The SPECIAL TOOL parallel gauge (01) must be flush with contact surfaces (arrows) so that parallelism of the right exhaust gas turbocharger to the left exhaust gas turbocharger (2) is ensured.
 
    TORQUE SPECIFICATION Bolt, turbocharger clamp to exhaust manifold *BA09.40-P-1001-01ZA 
    SPECIAL TOOL Parallel support Fig 2
16 Remove left exhaust gas turbocharger (2) with oil return feed line (18) upward. INSTALLATION NOTES :
Ensure that marking (29) on oil return feed line (18) is flush with crankcase.
Oil return feed line (18) will otherwise be leaky.
 
    INSTALLATION IMPORTANT : Replace sealing ring on left exhaust manifold.  
17 Seal all openings on exhaust gas turbocharger (2), engine, and left and right catalytic converter with rags.    
18 Remove oil return feed line (18) from left exhaust gas turbocharger (2).   AR09.40-P-6041XGA 
19 Install in the reverse order.    
INSPECT Check     
20 Check engine oil level and correct if necessary.    
REFER TO MAINTENANCE Check engine oil level with instrument cluster   AP18.00-P-1812SKI
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
21 Perform engine test run and check engine for proper operation and leak tightness.    
22 Install lower engine compartment lining.   AR61.20-P-1105XG
23 Install upper engine cover.   AR01.10-P-2405XGA
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number Designation Engine 176
BA01.20-P-1003-01J Clamp, boot to exhaust gas turbocharger/air filter Nm 1, 5
TURBOCHARGER

Number Designation Engine 176
BA09.40-P-1001-01ZA Bolt, turbocharger clamp to exhaust manifold Nm 21
TURBOCHARGER

Number Designation Engine 176
BA09.40-P-1006-01ZA Bolt, upper heat shield to bracket/side heat shield Nm 9
TURBOCHARGER

Number Designation Engine 176
BA09.40-P-1007-01ZA Bolt, side heat shield to cylinder head cover Nm 9
CHARGE AIR LINE/CHARGE AIR COOLING

Number Designation Engine 176
BA09.41-P-1002-01X Bolt, clamp for charge air hose to charge-air distributor Nm 6
Fig 1: Identifying Record Plug (129 589 00 91 00)
G13656306Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Parallel Support (168 589 03 21 00)
G13656307Courtesy of MERCEDES-BENZ USA