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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Air Intake, Turbocharging - 257 Chassis >> Testing & Repair >> Remove/Install Charge Air Line From Check Valve To Additional Compressor - AR09.41-P-8952MSA

Remove/Install Charge Air Line From Check Valve To Additional Compressor - AR09.41-P-8952MSA

Engine 256.9 in model 213, 238, 257 with code M016 (Uprated engine) 

Engine 256.9 in model 290 

MODIFICATION NOTES

27.01.2020 Screw, charge air line to check valve BA09.41-P-1003-01MRT
G14548248Courtesy of MERCEDES-BENZ USA
G14548249Courtesy of MERCEDES-BENZ USA
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
REMOVING Remove     
1 Remove charge air line from check valve to throttle valve actuator.   AR09.41-P-8951MSA 
2 Remove screw (1).    
3 Remove screw (2).    
4 Release screw clamp (3) until charge air line (4) and charge air line (5) are rotatable.    
5 Remove charge air line (4) from additional compressor.    
6 Detach charge air lines (4, 5) with boot (6) from check valve (7) and remove.    
7 Release screw clamp (8) and remove boot (6) from charge air lines (4, 5).    
INSTALLING Install     
8 Install O-rings at check valve (7) and additional compressor. IMPORTANT Replace O-rings.  
9 Install boot (6) between charge air lines (4, 5) IMPORTANT Replace boot (6).  
10 First attach charge air lines (4, 5) with boot (6) at check valve (7) and then at additional compressor.    
11 Screw in screw (1) and tighten. TORQUE SPECIFICATION Screw, charge air line to check valve *BA09.41-P-1003-01MRT 
12 Align marking (arrow A) of boot (6) with marking (arrow B) of charge air line (5).    
13 Tighten screw clamp (8). TORQUE SPECIFICATION Screw clamp, boot between charge air lines *BA09.41-P-1009-01MRT 
14 Screw in screw (2) and tighten. TORQUE SPECIFICATION Screw, charge air line to timing case *BA09.41-P-1004-01MRT 
15 Tighten screw clamp (3). TORQUE SPECIFICATION Screw clamp, boot between charge air lines *BA09.41-P-1009-01MRT 
16 Install charge air line from check valve to throttle valve actuator.   AR09.41-P-8951MSA 
CHARGE AIR PIPE/CHARGE AIR COOLING

Number Designation Engine 256.9
BA09.41-P-1003-01MRT Screw, charge air line to check valve Nm 10
CHARGE AIR PIPE/CHARGE AIR COOLING

Number Designation Engine 256.9
BA09.41-P-1004-01MRT Screw, charge air line to timing case Nm 8
CHARGE AIR PIPE/CHARGE AIR COOLING

Number Designation Engine 256.9
BA09.41-P-1009-01MRT Screw clamp, boot between charge air lines Nm 4