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Home >> Mercedes Benz >> 2018 >> S450 Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> Exhaust System - 222 Chassis >> Testing & Repair >> Remove/Install Exhaust System >> Remove/Install Rear Exhaust System - AR49.10-P-7285LF

Remove/Install Rear Exhaust System - AR49.10-P-7285LF

Engine 157, 276.8, 278, 279 in model 217 

Engine 157, 276.8/9, 277, 278, 279, 642, 651 in model 222 

G15370375Courtesy of MERCEDES-BENZ USA

Shown on exhaust system for model 222 with engine 157 

G15370376Courtesy of MERCEDES-BENZ USA

Shown on exhaust system with engine 642 

Shown on exhaust system for model 217 with engine 278 

G15370377Courtesy of MERCEDES-BENZ USA

Shown on model 217.4 

G15370378Courtesy 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 of the danger zone.		 AS49.00-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
Notice  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
REMOVINGINSTALLING Remove/install     
1 Lift vehicle with lifting platform.   AR00.60-P-1000LF
2 Remove trim (55) of trunk recess.    
3 Remove underbody protection. Engine 157, 276.8/9, 277, 278, 279, 642, 651 in model 222  
    with code Z07 (B7 armoring on special protection version)  
      AR61.40-P-1001LFS
4 Remove screws (9) and remove reinforcement (1). TORQUE SPECIFICATION Screw/bolt, rear reinforcement to frame floor assembly *BA61.10-P-1004-01K 
5 Remove center diagonal struts (31). Engine 157, 278, 279 in model 217.4  
    TORQUE SPECIFICATION Screw/bolt, center diagonal strut to center diagonal strut *BA61.10-P-1015-01K 
    TORQUE SPECIFICATION Screw/bolt, center diagonal strut to body/reinforcement *BA61.10-P-1014-01K 
6 Remove rear diagonal struts (30). Engine 157, 278, 279 in model 217.4
TORQUE SPECIFICATION Screw/bolt, rear diagonal strut to bracket (to stop plate)		 *BA61.10-P-1016-01K 
    TORQUE SPECIFICATION Screw/bolt, rear diagonal strut to body *BA61.10-P-1008-01K 
    TORQUE SPECIFICATION Screw/bolt, rear diagonal strut to bracket/spare wheel well *BA61.10-P-1009-01K 
7.1 Remove screws (14) and remove right diagonal strut (15). Engine 642, 651 in model 222  
    TORQUE SPECIFICATION Nut, rear diagonal strut to stop plate *BA61.10-P-1010-01K 
    TORQUE SPECIFICATION Screw/bolt, rear diagonal strut to body *BA61.10-P-1008-01K 
    TORQUE SPECIFICATION Screw/bolt, rear diagonal strut to bracket/spare wheel well *BA61.10-P-1009-01K 
7.2 Remove screws (14), remove left and right diagonal strut (15). Engine 157, 276.8, 278, 279 in model 217
Engine 157, 276.8/9, 277, 278, 279 in model 222		  
    TORQUE SPECIFICATION Nut, rear diagonal strut to stop plate *BA61.10-P-1010-01K 
    TORQUE SPECIFICATION Screw/bolt, rear diagonal strut to body *BA61.10-P-1008-01K 
    TORQUE SPECIFICATION Screw/bolt, rear diagonal strut to bracket/spare wheel well *BA61.10-P-1009-01K 
8.1 Release and disconnect electrical connector of left exhaust gas flap actuator motor (M16/53) and right exhaust gas flap actuator motor (M16/54). Engine 157 in model 217, 222  
8.2 Remove vacuum lines (18) from vacuum cells of rear exhaust system (19) and/or right rear exhaust system (21) and left rear exhaust system (20). Engine 276, 278 in model 217, 222  
9.1 Support rear exhaust system (19) and secure against falling down. Engine 157, 276.8, 278, 279 in model 217  
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
9.2 Support left rear exhaust system (20) and secure against falling down. Engine 157, 276.8/9, 277, 278, 279 in model 222  
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
9.3 Support right rear exhaust system (21) and secure against falling down. Engine 157, 276.8/9, 277, 278, 279 in model 222  
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
9.4 Support rear exhaust system (22) and secure against falling down. Engine 642, 651 in model 222  
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
10.1 Remove screws of clamps (12, 13) at rear exhaust system (19), remove clamps (12, 13) and if necessary seals. Engine 157, 276.8, 278, 279 in model 217
INSTALLATION NOTES Component parts of exhaust system must be aligned so that free of tension before tightening of screw connections.
Otherwise, leaks in exhaust system will occur.
INSTALLATION IMPORTANT Replace screws, clamps (12, 13) and if necessary seals.		  
    TORQUE SPECIFICATION Engine 157 in model 217
Engine 276 in model 217
Engine 278 in model 217
Engine 279 in model 217 Bolt, clamp for front/center/rear exhaust system		 *BA49.10-P-1006-02D 
10.2 Remove screw of clamp (12) at right rear exhaust system (21), remove clamp (12) and if necessary seal. Engine 157, 276.8/9, 277, 278, 279 in model 222
INSTALLATION NOTES Component parts of exhaust system must be aligned so that free of tension before tightening of screw connections.
Otherwise, leaks in exhaust system will occur.
INSTALLATION IMPORTANT Replace screw, clamp (12) and if necessary seal.		  
    TORQUE SPECIFICATION Engine 157 in model 222
Engine 276 in model 222
Engine 277 in model 222
Engine 278 in model 222
Engine 279 in model 222 Bolt, clamp for front/center/rear exhaust system		 *BA49.10-P-1006-01AN 
10.3 Remove screw of clamp (13) at left rear exhaust system (20), remove clamp (13) and if necessary seal. Engine 157, 276.8/9, 277, 278, 279 in model 222
INSTALLATION NOTES Component parts of exhaust system must be aligned so that free of tension before tightening of screw connections.
Otherwise, leaks in exhaust system will occur.
INSTALLATION IMPORTANT Replace screw, clamp (13) and if necessary seal.
TORQUE SPECIFICATION Engine 157 in model 222
Engine 276 in model 222
Engine 277 in model 222
Engine 278 in model 222
Engine 279 in model 222 Bolt, clamp for front/center/rear exhaust system		 *BA49.10-P-1006-01AN 
10.4 Remove screw of SCR catalytic converter clamp at rear exhaust system (22), remove clamp and if necessary seal. Engine 642, 651 in model 222
INSTALLATION NOTES Component parts of exhaust system must be aligned so that free of tension before tightening of screw connections.
Otherwise, leaks in exhaust system will occur.
INSTALLATION IMPORTANT Replace screw, clamp and if necessary seal.
TORQUE SPECIFICATION Engine 642 in model 222
Engine 651 in model 222 Bolt, clamp for front/center/rear exhaust system		 *BA49.10-P-1006-01AN 
11 Remove screws of brackets of elastomer bearings (7). INSTALLATION IMPORTANT Replace screw/bolts.
TORQUE SPECIFICATION Engine 642 in model 222
Engine 651 in model 222 Bolt, bracket for exhaust line/reinforcement to frame floor assembly		 *BA49.10-P-1007-01AN 
    TORQUE SPECIFICATION Engine 157 in model 222
Engine 276 in model 222
Engine 277 in model 222
Engine 278 in model 222
Engine 279 in model 222
Engine 642 in model 222
Engine 651 in model 222 Bolt/nut, exhaust system elastomer bearing bracket to rear axle carrier		 *BA49.10-P-1008-01AN 
    TORQUE SPECIFICATION Engine 157 in model 222
Engine 276 in model 222
Engine 277 in model 222
Engine 278 in model 222
Engine 279 in model 222
Engine 642 in model 222
Engine 651 in model 222 Bolt/nut, bracket for elastomer bearing on exhaust system to rear cross member		 *BA49.10-P-1009-01AN 
    TORQUE SPECIFICATION Engine 157 in model 217
Engine 276 in model 217
Engine 278 in model 217
Engine 279 in model 217 Screw/bolt, bracket for exhaust system elastomer bearing to rear axle carrier		 *BA49.10-P-1007-02D 
    TORQUE SPECIFICATION Engine 157 in model 217
Engine 276 in model 217
Engine 278 in model 217
Engine 279 in model 217 Screw/bolt, bracket for exhaust system elastomer bearing to rear crossmember		 *BA49.10-P-1008-02D 
12.1 Remove rear exhaust system (19) downwards. Engine 157, 276.8, 278, 279 in model 217
IMPORTANT Aid of helper required.		  
12.2 Remove left rear exhaust system (20) downwards. Engine 157, 276.8, 278, 279 in model 217
IMPORTANT Aid of helper required.		  
12.3 Remove right rear exhaust system (21) downwards. Engine 157, 276.8/9, 277, 278, 279 in model 222  
    IMPORTANT Aid of helper required.  
12.4 Remove rear exhaust system (22) downwards Engine 642, 651 in model 222
IMPORTANT Aid of helper required.		  
13 Remove combustion and corrosion residues from separating points.    
14.1 Remove left exhaust gas flap actuator motor (M16/53), right exhaust gas flap actuator motor (M16/54). Engine 157 in model 217, 222
When replacing left,/right rear exhaust system (20, 21).
INSTALLATION IMPORTANT Replace nuts.
IMPORTANT For this purpose, unscrew in each case 3 nuts.
TORQUE SPECIFICATION M5X0.8		 *BA00.10-P-1001-04A 
14.2 Remove vacuum cell of left exhaust gas flap and right exhaust gas flap. Engine 278 in model 217, 222
When replacing rear exhaust system (19).		  
INSPECT Check     
15 Check elastomer bearings (7) for damage and or wear. If problems are determined,
↓
Replace elastomer bearings (7).
INSTALLATION IMPORTANT Wet new elastomer bearings (7) with lubricant.
Lubricant, rubber assembly 1 L		 *BR00.45-Z-1010-06A 
16 Check installation position and for unobstructed movement of all component parts of exhaust system.    
17 Install in the reverse order.    
18 Read out, clear fault memory.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
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
19 Perform engine test run and check leak tightness of the exhaust system.    
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1001-04A M5X0.8 Nm 5 8
EXHAUST SYSTEM

Number Designation Engine 157 in model 222 Engine 276 in model 222
BA49.10-P-1006-01AN Bolt, clamp for front/center/rear exhaust system M8 Nm 35 35
EXHAUST SYSTEM

Number Designation Engine 277 in model 222 Engine 278 in model 222
BA49.10-P-1006-01AN Bolt, clamp for front/center/rear exhaust system M8 Nm 35 35
EXHAUST SYSTEM

Number Designation Engine 279 in model 222 Engine 642 in model 222
BA49.10-P-1006-01AN Bolt, clamp for front/center/rear exhaust system M8 Nm 35 35
EXHAUST SYSTEM

Number Designation Engine 651 in model 222
BA49.10-P-1006-01AN Bolt, clamp for front/center/rear exhaust system M8 Nm 35
EXHAUST SYSTEM

Number Designation Engine 157 in model 217 Engine 276 in model 217
BA49.10-P-1006-02D Bolt, clamp for front/center/rear exhaust system Nm 35 35
EXHAUST SYSTEM

Number Designation Engine 278 in model 217 Engine 279 in model 217
BA49.10-P-1006-02D Bolt, clamp for front/center/rear exhaust system Nm 35 35
EXHAUST SYSTEM

Number Designation Engine 642 in model 222 Engine 651 in model 222
BA49.10-P-1007-01AN Bolt, bracket for exhaust line/reinforcement to frame floor assembly M8 Nm 35 35
M10 Nm 50 50
EXHAUST SYSTEM

Number Designation Engine 157 in model 217 Engine 276 in model 217
BA49.10-P-1007-02D Screw/bolt, bracket for exhaust system elastomer bearing to rear axle carrier Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 278 in model 217 Engine 279 in model 217
BA49.10-P-1007-02D Screw/bolt, bracket for exhaust system elastomer bearing to rear axle carrier Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 157 in model 222 Engine 276 in model 222
BA49.10-P-1008-01AN Bolt/nut, exhaust system elastomer bearing bracket to rear axle carrier Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 277 in model 222 Engine 278 in model 222
BA49.10-P-1008-01AN Bolt/nut, exhaust system elastomer bearing bracket to rear axle carrier Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 279 in model 222 Engine 642 in model 222
BA49.10-P-1008-01AN Bolt/nut, exhaust system elastomer bearing bracket to rear axle carrier Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 651 in model 222
BA49.10-P-1008-01AN Bolt/nut, exhaust system elastomer bearing bracket to rear axle carrier Nm 20
EXHAUST SYSTEM

Number Designation Engine 157 in model 217 Engine 276 in model 217
BA49.10-P-1008-02D Screw/bolt, bracket for exhaust system elastomer bearing to rear crossmember Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 278 in model 217 Engine 279 in model 217
BA49.10-P-1008-02D Screw/bolt, bracket for exhaust system elastomer bearing to rear crossmember Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 157 in model 222 Engine 276 in model 222
BA49.10-P-1009-01AN Bolt/nut, bracket for elastomer bearing on exhaust system to rear cross member Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 277 in model 222 Engine 278 in model 222
BA49.10-P-1009-01AN Bolt/nut, bracket for elastomer bearing on exhaust system to rear cross member Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 279 in model 222 Engine 642 in model 222
BA49.10-P-1009-01AN Bolt/nut, bracket for elastomer bearing on exhaust system to rear cross member Nm 20 20
EXHAUST SYSTEM

Number Designation Engine 651 in model 222
BA49.10-P-1009-01AN Bolt/nut, bracket for elastomer bearing on exhaust system to rear cross member Nm 20
FRAME FLOOR ASSEMBLY

Number Designation Model 217 Model 222.0/1/9
BA61.10-P-1004-01K Screw/bolt, rear reinforcement to frame floor assembly Nm 50 50
FRAME FLOOR ASSEMBLY

Number Designation Model 217 Model 222.0/1/9
BA61.10-P-1008-01K Screw/bolt, rear diagonal strut to body Nm 50 50
FRAME FLOOR ASSEMBLY

Number Designation Model 217 Model 222.0/1/9
BA61.10-P-1009-01K Screw/bolt, rear diagonal strut to bracket/spare wheel well Nm 50 50
FRAME FLOOR ASSEMBLY

Number Designation Model 217 Model 222.0/1/9
BA61.10-P-1010-01K Nut, rear diagonal strut to stop plate Nm - 50
FRAME FLOOR ASSEMBLY

Number Designation Model 217
BA61.10-P-1014-01K Screw/bolt, center diagonal strut to body/reinforcement Nm 50
FRAME FLOOR ASSEMBLY

Number Designation Model 217
BA61.10-P-1015-01K Screw/bolt, center diagonal strut to center diagonal strut Nm 17
FRAME FLOOR ASSEMBLY

Number Designation Model 217
BA61.10-P-1016-01K Screw/bolt, rear diagonal strut to bracket (to stop plate) Nm 50
REPAIR MATERIALS

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