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Home >> Mercedes Benz >> 2021 >> E450 Base, 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Air Intake, Turbocharging - 238 Chassis >> Testing & Repair >> Remove/Install Turbocharger Coolant Feed Line >> Remove/Install Right Turbocharger Coolant Feed Line - AR09.41-P-0012MND

Remove/Install Right Turbocharger Coolant Feed Line - AR09.41-P-0012MND

Engine 276.8 In Model 213, 238 

Shown on engine 276.823 

G15375015Courtesy of MERCEDES-BENZ USA
G15375016Courtesy of MERCEDES-BENZ USA

Shown on engine 276.823 

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
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
Topical note  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVINGINSTALLING Remove/install     
1 Remove upper Engine cover INSTALLATION IMPORTANT : Only install upper Engine cover after the leak test.  
2 Remove lower front center, center and rear Engine compartment paneling INSTALLATION IMPORTANT : Only install front center, center and rear Engine compartment paneling after the leak test. AR61.20-P-1105LWE
3 Drain off coolant of Engine cooling system   AR20.00-P-1142OLC
4 Remove right air filter housing   AR09.10-P-1152MND 
5 Remove right catalytic converter Engine 276.823 in model 213, 238 AR49.10-P-5503MND
6 Remove inerting system line from heat shield (3) and place to one side Engine 276.8 in model 213, 238 with code 2U8 (Alternative refrigerant) AR86.10-P-0419LWE
7 Remove heat shield (5)   AR15.12-P-2184MND
    TORQUE SPECIFICATION Screw/bolt, heat shield of knock sensor to crankcase/ Engine support/bracket *BA15.10-P-1002-02B 
8 Remove screw/bolt (6) TORQUE SPECIFICATION Bolt, coolant feed/return line to turbocharger *BA09.40-P-1008-01W 
9 Remove screws/bolts (7, 8) Engine 276.823 in model 213, 238 TORQUE SPECIFICATION Bolt, coolant feed line to crankcase *BA09.40-P-1009-01W 
    TORQUE SPECIFICATION Bolt for coolant line attachment *BA09.40-P-1010-01W 
10.1 Remove coolant line feed line (1) on exhaust gas recirculation valve and remove upwards; seal openings with suitable stop plugs Engine 276.853 in model 213
INSTALLATION IMPORTANT : Replace sealing ring.
AR14.20-P-0003MND
    SPECIAL TOOL Hose clamp pliers Fig 2
    SPECIAL TOOL Record plug Fig 1
10.2 Remove coolant line feed line (1) and close off openings using suitable stop plugs. Engine 276.823 in model 213, 238
INSTALLATION IMPORTANT : Install new sealing rings.
SPECIAL TOOL Record plug
Fig 1
11 Install in the reverse order    
INSPECT Check     
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 buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
12 Carry out Engine test run, checking the Engine for leaktightness and proper operation    
13 Install upper Engine cover    
14 Install lower front center, center and rear Engine compartment paneling   AR61.20-P-1105LWE
TURBOCHARGER

Number Designation Engine 276.8
BA09.40-P-1008-01W Bolt, coolant feed/return line to turbocharger Nm 9
TURBOCHARGER

Number Designation Engine 276.8
BA09.40-P-1009-01W Bolt, coolant feed line to crankcase Nm 9
TURBOCHARGER

Number Designation Engine 276.8
BA09.40-P-1010-01W Bolt for coolant line attachment M6 Nm 9
KNOCK SENSORS

Number Designation Engine 276
BA15.10-P-1002-02B Screw/bolt, heat shield of knock sensor to crankcase/engine support/ bracket Nm 9
Fig 1: Identifying Record Plug (129 589 00 91 00)
G15375017Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Hose Clamp Pliers (003 589 03 37 00)
G11065550Courtesy of MERCEDES-BENZ USA