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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Air Intake, Turbocharging - 257 Chassis >> Testing & Repair >> Remove/Install Charge Air Pipe - AR09.41-P-8950MSA

Remove/Install Charge Air Pipe - AR09.41-P-8950MSA

Engine 256.9 in model 257 except code M016 (Uprated engine) 

Fig 1: Charge Air Pipe Component Location - Engine 256.9 In Model 257 (Except Code M016)
G14548244REMOVINGINSTALLINGIMPORTANTREFER TO SPECIAL TOOLSREFER TO SPECIAL TOOLSREFER TO SPECIAL TOOLSREFER TO SPECIAL TOOLSTORQUE SPECIFICATIONINSTALLATION IMPORTANTINSTALLATION IMPORTANTTORQUE SPECIFICATIONTORQUE SPECIFICATIONINSTALLATION IMPORTANTINSTALLATION IMPORTANTCourtesy of MERCEDES-BENZ USA
Topical note Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Topical note Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVINGINSTALLING Remove/install     
1 Remove charge-air distributor.   AR09.41-P-8683MSA 
2 Remove rear engine mount from engine carrier. IMPORTANT Do not remove engine carrier. AR22.10-P-4360MSA
3 Lift transmission and support from below with suitable tool.    
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
4 Remove mounting plate and major assembly mount from working area.    
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
5 Lower vehicle.    
6 Loosen clamps (2). TORQUE SPECIFICATION Screw clamp, boot between charge air lines *BA09.41-P-1009-01MRT 
7 Remove charge air line part 1 (1). INSTALLATION IMPORTANT Align marking of the charge air line part 1 (1) relative to the boot (3) marking.  
8 Remove boot (3). INSTALLATION IMPORTANT Install new boot (3). Wet boot (3) with lubricant. Align marking of boot (3) relative to the marking on the charge air line part 2 (5).  
    Lubricant, rubber assembly 1 l *BR00.45-Z-1010-06A 
9 Remove pressure and temperature sensor upstream of throttle valve (B28/26). When installing new charge air line part 1 (1). AR09.41-P-2011MSA 
10 Remove bleed line (8) from charge air line part 2 (5).    
11 Unscrew bolt (4). TORQUE SPECIFICATION Screw/bolt, charge air line to chain case cover *BA09.41-P-1002-01MRT 
12 Loosen clamps (6) TORQUE SPECIFICATION Screw clamp, boot between charge air lines *BA09.41-P-1009-01MRT 
13 Remove charge air line part 2 (5). INSTALLATION IMPORTANT Align marking of the charge air line part 2 (5) relative to the marking boot (7).  
14 Remove boot (7). INSTALLATION IMPORTANT Install new boot (7).
Wet boot (7) with lubricant.
Align marking of the boot (7) relative to the marking on the exhaust gas turbocharger. Lubricant, rubber assembly 1 l
*BR00.45-Z-1010-06A 
15 Install in the reverse order.    
CHARGE AIR PIPE/CHARGE AIR COOLING

Number Designation Engine 256.9
BA09.41-P-1002-01MRT Screw/bolt, charge air line to chain case cover 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
REPAIR MATERIALS

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