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Home >> Mercedes Benz >> 2020 >> SLC43 AMG Base >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Air Intake, Turbocharging - 172 Chassis >> Testing & Repair >> Remove/Install Charge Air Distributor - AR09.41-P-8683RKA

Remove/Install Charge Air Distributor - AR09.41-P-8683RKA

ENGINE 276.8 in model 172 

ENGINE 276.8 in model 231 

Fig 1: Charge Air Distributor Components Location - Engine 276.8 In Model 172
G13845485Courtesy of MERCEDES-BENZ USA
G13845486Courtesy of MERCEDES-BENZ USA
REMOVING Remove     
1 Detach ground line from battery ENGINE 276.8 in model 172 AR54.10-P-0003W
    ENGINE 276.8 in model 231 AR54.10-P-0003RK
2 Remove upper engine cover    
3 Remove right air filter housing (1)   AR09.10-P-1150RKA 
4 Remove left air filter housing (2)   AR09.10-P-1150RKA 
5 Remove ME-SFI [ME] control unit (15) ENGINE 276.8 in model 172 AR07.08-P-1000W
    ENGINE 276.8 in model 231 AR07.08-P-7008RKA
6 Detach partial load ventilation check valve (4) at charge air distributor (3)    
7 Detach engine wiring harness for removing left and right cylinder head cover ENGINE 276.8 in model 172 ENGINE 276.8 in model 231 AR01.00-P-2410-04WA
AR01.00-P-2410-02RKA
8 Unfasten screw clamp (5) on throttle valve actuator (13)    
9 Unclip vent line at charge air distributor (3)    
10 Remove screws/bolts (7) from the outside to the inside    
11 Raise charge air distributor (3) with throttle valve actuator (13)    
12 Release and disconnect electrical connection for throttle valve actuator (14) from throttle valve actuator (13)    
13 Unclip throttle valve actuator wiring harness    
14 Remove charge air distributor (3) upwards    
15 Detach throttle valve actuator (13) from charge air distributor (3) When replacing the charge air distributor (3). AR07.51-P-1401RKA
CLEAN Clean     
16 Remove sealing residue on charge air distributor (3) and on left connecting flange NOTES The sealing surfaces on the charge air distributor (3) and on the left connecting flange must not have any foreign objects, scratches or grooves.
Non-observance leads to leakage between the charge air distributor (3) and the left connecting flange.
NOTES Do not use any sharp-edged tools or abrasive paper.
The sealing surfaces can get damaged otherwise.
Loctite 7200
*BR00.45-Z-1038-04A 
17 Remove sealing residue on charge air distributor (3) and on right connecting flange NOTES The sealing surfaces on the charge air distributor (3) and on the right connecting flange must not have any foreign objects, scratches or grooves.
Non-observance leads to leakage between the charge air distributor (3) and the left connecting flange.
NOTES Do not use any sharp-edged tools or abrasive paper.
The sealing surfaces can get damaged otherwise.
Loctite 7200
*BR00.45-Z-1038-04A 
INSTALLING Install     
18 Check seal between the throttle valve actuator (13) and the charge air distributor (3) When replacing the charge air distributor (3).  
19 Mount throttle valve actuator (13) on charge air distributor (3) When replacing the charge air distributor (3). AR07.51-P-1401RKA
20 Replace seals (8) between charge air distributor (3) and left connecting flange    
21 Replace seals (8) between charge air distributor (3) and right connecting flange    
22 Insert charge air distributor (3)    
23 Clip in throttle valve actuator wiring harness    
24 Connect electrical connection on throttle valve actuator (13) to throttle valve actuator (14) and lock    
25 Tighten screw/bolts (7) cross-wise from inside to outside TORQUE SPECIFICATION Screw/bolt, charge air distributor to intermediate flange *BA09.41-P-1001-01R 
26 Clip in vent line at charge air distributor (3)    
27 Tighten screw clamp (5) on throttle valve actuator (13)    
28 Attach engine wiring harness to the left and right cylinder head cover ENGINE 276.8 in model 172 AR01.00-P-2410-04WA
    ENGINE 276.8 in model 231 AR01.00-P-2410-02RKA
    TORQUE SPECIFICATION ENGINE 276.8 in model 231 Nut, connection for terminal designation 30 *BA15.30-P-1001-01J 
    TORQUE SPECIFICATION ENGINE 276.8 in model 231 Nut, circuit B+ to alternator BA15.40-P-1002-01F 
    TORQUE SPECIFICATION ENGINE 276.8 in model 231 Bolt, heat shield to engine support *BA22.10-P-1003-02A 
29 Check seal between the partial load ventilation check valve (4) and the charge air distributor (3)    
30 Mount partial load ventilation check valve (4) on charge air distributor (3)    
31 Install ME-SFI [ME] control unit (15) ENGINE 276.8 in model 172 AR07.08-P-1000W
    ENGINE 276.8 in model 231 AR07.08-P-7008RKA
32 Install right air filter housing (1)   AR09.10-P-1150RKA 
33 Install left air filter housing (2)   AR09.10-P-1150RKA 
34 Install upper engine cover    
35 Mount ground line on battery ENGINE 276.8 in model 172 AR54.10-P-0003W
    ENGINE 276.8 in model 231 AR54.10-P-0003RK
CHARGE AIR PIPE/CHARGE AIR COOLING

Number Designation ENGINE 276.8
BA09.41-P-1001-01R Screw/bolt, charge air distributor to intermediate flange Nm 9
STARTER

Number Designation ENGINE 276
BA15.30-P-1001-01J Nut, connection for terminal designation 30 Nm 15
ALTERNATOR

Number Designation ENGINE 276
BA15.40-P-1002-01F Nut, circuit B+ to alternator Nm 15
ENGINE SUPPORT (ENGINE SIDE)

Number Designation ENGINE 276
BA22.10-P-1003-02A Bolt, heat shield to engine support Nm 13
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1038-04A Loctite 7200 Henkel AG & Co. KGaA http://www.loctite.de