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Home >> Mercedes Benz >> 2020 >> S450 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Air Intake, Turbocharging - 222 Chassis (1 Of 2) >> Testing & Repair >> Remove/Install Turbocharger >> Remove/Install Right Turbocharger - AR09.40-P-6027MNL

Remove/Install Right Turbocharger - AR09.40-P-6027MNL

Engine 176 in model 217, 222 

G15362279Courtesy of MERCEDES-BENZ USA
G15362280Courtesy of MERCEDES-BENZ USA
Fig 1: Right Turbocharger/ATL Components Location - Engine 176 In Model 222
G15362281Courtesy of MERCEDES-BENZ USA
G15362282Courtesy of MERCEDES-BENZ USA
G15362283Courtesy of MERCEDES-BENZ USA
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 o' the danger zone. AS49.00-Z-0001-01A
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 overpressure. 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
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
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 Drain off coolant   AR20.00-P-1142MNL
    INSTALLATION IMPORTANT:  Do not install center and front lower engine compartment lining until after leak test.  
2 Remove left-hand air filter housing   AR09.10-P-1151MNL 
    INSTALLATION IMPORTANT:  Only install upper engine cover after the leak test.  
3 Remove right air filter housing   AR09.10-P-1152MNL 
4 Remove engine cable duct from elastomer bearings of heat shield (5) and place to one side INSTALLATION IMPORTANT:  Wet elastomer bearings with lubricating paste.  
    Antifriction paste, rubber parts 2.5 kg, DBL 6867.00 *BR00.45-Z-1002-06A 
5 Check elastomer bearings of heat shield (5) for damage In case of a complaint
↓
Replace elastomer bearing.
 
6 Remove screws (1) and remove heat shield (2) in upward direction TORQUE SPECIFICATION Bolt, upper heat shield to bracket/side heat shield *BA09.40-P-1006-01ZA 
7 Remove left and right catalytic converter and secure against falling down Right catalytic converter AR49.20-P-0102MNL
    Left catalytic converter AR49.20-P-0101MNL
8 Remove ignition coil for cylinders 1 +2 (T4)   AR15.12-P-2009MNL
9 Unclip electric line (4) from heat shield (5)    
10 Unclip engine wiring harness from heat shield (5)    
11 Remove line of inerting system from heat shield (5) Engine 176 in model 217, 222
with code 2U8 (Alternative refrigerant)
 
    TORQUE SPECIFICATION Pipe for inerting to engine *BA86.10-P-1002-03G 
12 Remove screws (3) and remove heat shield (5) in upward direction TORQUE SPECIFICATION Bolt, side heat shield to cylinder head cover *BA09.40-P-1007-01ZA 
13 Remove boot (11) at right exhaust gas turbocharger (7) and place to one side TORQUE SPECIFICATION Clamp, boot to exhaust gas turbocharger/air filter *BA01.20-P-1003-01J 
14 Remove vacuum hose (13) at right exhaust gas turbocharger (7)    
15 Remove oil feed line (8) from right exhaust gas turbocharger (7) and seal openings with suitable stop plugs   AR09.40-P-6040MNL 
    SPECIAL TOOL Record plug Fig 2
16 Remove coolant return line (9)   AR20.20-P-1101MNL
17 Remove coolant feed line (10) at right exhaust gas turbocharger (7)   AR20.20-P-1100MNL
18 Remove upper coolant expansion reservoir for low-temperature circuit and place to one side with connected lines   AR09.41-P-0050MNL 
19 Remove bleed line (14) at right exhaust gas turbocharger (7)    
20 Remove charge air hose (12) at right exhaust gas turbocharger (7) TORQUE SPECIFICATION Bolt, clamp for charge air hose to charge-air distributor *BA09.41-P-1002-01X 
21 Remove clamp (15) INSTALLATION IMPORTANT:  Replace clamp (15).
INSTALLATION IMPORTANT: SPECIAL TOOL Parallel gauge (01) must be flush with contact surfaces (arrows) so that parallelism of right exhaust gas turbocharger (7) with left exhaust gas turbocharger is ensured.
 
    TORQUE SPECIFICATION Bolt, turbocharger clamp to exhaust manifold *BA09.40-P-1001-01ZA 
    SPECIAL TOOL Parallel support Fig 3
22 Remove right exhaust gas turbocharger (7) with oil return feed line (18) in upward direction 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 right exhaust manifold.
 
23 Remove oil return feed line (18) at right exhaust gas turbocharger (7)   AR09.40-P-6042MNL 
    INSTALLATION IMPORTANT:  Replace oil return feed line (18) with sealing rings (28).  
24 Install in the reverse order    
INSPECT Check     
25 Check oil level of engine and correct it    
REFER TO MAINTENANCE     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
26 Perform an engine test run and check engine for leaktightness    
27 Install center and front lower engine compartment paneling   AR61.20-P-1105LF
28 Install upper engine cover    
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
INERTING

Number Designation Model 217 Model 222
BA86.10-P-1002-03G Pipe for inerting to engine M6 Screw   Nm 8 8
Nut Stage 1 Nm 8 8
Stage 2 ∠° 30 30
Fig 2: Identifying Record Plug (129 589 00 91 00)
G12078802Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Parallel Support (168 589 03 21 00)
G12817080Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1002-06A Antifriction paste, rubber parts 2.5 kg, DBL 6867.00 A 000 989 01 60