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Home >> Mercedes Benz >> 2018 >> E300 Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> Exhaust System - 213 Chassis 1 Of 2 >> Testing & Repair >> Remove/Install Exhaust System >> Remove/Install Exhaust System - AR49.10-P-7142MND

Remove/Install Exhaust System - AR49.10-P-7142MND

Engine 276.8 in model 213, 238 

except code 598 (Gasoline particulate filter (OPF) with sensor system) 

G13746679Courtesy of MERCEDES-BENZ USA

Shown on model 213 with engine 276.853 

Fig 1: Exhaust System Components Location - Engine 276.823 In Model 213 Except Code 598
G13746680Courtesy of MERCEDES-BENZ USA

Shown on model 213 with engine 276.823 

Shown on model 238.4 

G13746681Courtesy of MERCEDES-BENZ USA
  Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
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 ol the hazard area. 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
  Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVING Remove     
1 Release and disconnect electrical connection (33) Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR49.10-P-4824MND 
2 Remove the left and right underfloor paneling   AR61.30-P-1001LWE
3 Remove control unit of the left NOx sensor and expose electrical line Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0003MND
4 Remove control unit of the right NOx sensor and expose electrical line Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0002MND
5 Remove NOx sensor control unit downstream of NOx storage catalytic converter and expose electrical line Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0004MND
6 Release and disconnect electrical connection of left temperature sensor and expose electrical line Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0006MND
7 Release and disconnect electrical connection of right temperature sensor and expose electrical line Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0008MND
8 Unscrew screws/bolts of cross strut (72) at frame floor, and remove cross strut (72)    
9 Unscrew screws/bolts of rear diagonal struts (73) at spare wheel well and longitudinal member, and remove diagonal struts (73) Engine 276.8 in model 213.2, 238.4 except code 598 (Gasoline particulate filter (OPF) with sensor system) Engine 276.8 in model 238.4 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR61.10-P-5142LWP
10
REFER TO SPECIAL TOOLS
Support exhaust system (30) and secure against falling down 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
11 Remove elastomer bearing (34, 35) for exhaust system (30)    
12 Unscrew nuts of the elastomer bearing (39) at holders for the exhaust system (30)    
13 Release screws/bolts of both clamps (3), and remove clamps (3)    
14
REFER TO SPECIAL TOOLS
Lower exhaust system (30) and remove downwards 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate IMPORTANT Aid of helper required. WS26.00-P-3309B
15 Check elastomer bearings (34, 35, 39) If wear or damage present

Replace elastomer bearings (34, 35, 39).
 
16 Remove combustion and corrosion residues the connections    
INSTALLING Install     
17
REFER TO SPECIAL TOOLS
Position exhaust system (30) and support it 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate IMPORTANT Aid of helper required. WS26.00-P-3309B
18 Attach elastomer bearings (34, 35) to the exhaust system (30)    
19 Tighten down nuts on the elastomer bearing (39) at holders for the exhaust system (30) TORQUE SPECIFICATION Engine 276.8 in model 238 except code 598 (Gasoline particulate filter (OPF) with sensor system) Nut, decoupling element for front exhaust system to bracket *BA49.10-P-1009-02I 
TORQUE SPECIFICATION Engine 276.8 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) Nut, decoupling element for front exhaust system to bracket *BA49.10-P-1009-02G 
20 Position new sealing rings on the left and right CAT (1, 2)    
21 Position both new clamps (3) on the left and right CAT (1, 2) and tighten slightly by hand    
22 Check installation position and unobstructed movement of exhaust system (30) and correct if necessary    
23 Tighten screw/bolts for clamps (3) TORQUE SPECIFICATION Engine 276.8 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) Clamp at catalytic converter and front exhaust system *BA49.10-P-1002-02G 
TORQUE SPECIFICATION Engine 276.8 in model 238 except code 598 (Gasoline particulate filter (OPF) with sensor system) Clamp to catalytic converter and front exhaust system *BA49.10-P-1002-02I 
24
REFER TO SPECIAL TOOLS
Remove support for exhaust system (30) 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
25 Position cross strut (72) on frame floor, and tighten screws/bolts TORQUE SPECIFICATION Bolt, rear reinforcement to frame floor assembly *BA61.10-P-1004-01L 
26 Position diagonal struts (73), tighten screws/bolts of diagonal struts (73) at spare wheel well and longitudinal member Engine 276.8 in model 213.2, 238.4 except code 598 (Gasoline particulate filter (OPF) with sensor system) Engine 276.8 in model 238.4 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR61.10-P-5142LWP
    TORQUE SPECIFICATION Engine 276.8 in model 213.2 except code 598 (Gasoline particulate filter (OPF) with sensor system) Bolt, rear diagonal strut to spare wheel well/body *BA61.10-P-1008-01L 
27 Install left NOx sensor control unit Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0003MND
28 Install right NOx sensor control unit Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0002MND
29 Install NOx sensor control unit downstream of NOx storage catalytic converter Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0004MND
30 Connect electrical connection of left temperature sensor, lock, and clip in electrical line Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0006MND
31 Connect electrical connection of right temperature sensor, lock, and clip in electrical line Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR14.40-P-0008MND
32 Install left and right underfloor paneling   AR61.30-P-1001LWE
33 Plug in electrical connection (33) together and lock Engine 276.853 in model 213 except code 598 (Gasoline particulate filter (OPF) with sensor system) AR49.10-P-4824MND 
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
34 Perform an engine test run and check exhaust system (30) for leaktightness    
EXHAUST SYSTEM

Number Designation Model 213 with engine 276
BA49.10-P-1002-02G Clamp at catalytic converter and front exhaust system Nm 19
EXHAUST SYSTEM

Number Designation Model 238 with engine 276
BA49.10-P-1002-02I Clamp to catalytic converter and front exhaust system Nm 19
EXHAUST SYSTEM

Number Designation Model 213 with engine 276
BA49.10-P-1009-02G Nut, decoupling element for front exhaust system to bracket Nm 20
EXHAUST SYSTEM

Number Designation Model 238 with engine 276
BA49.10-P-1009-02I Nut, decoupling element for front exhaust system to bracket Nm 20
FRAME FLOOR ASSEMBLY

Number Designation Model 213 Model 238
BA61.10-P-1004-01L Bolt, rear reinforcement to frame floor assembly Nm 24 24
FRAME FLOOR ASSEMBLY

Number Designation Model 213
BA61.10-P-1008-01L Bolt, rear diagonal strut to spare wheel well/body Nm 50