LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2020 >> E350 Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> Exhaust System - 213 Chassis 1 Of 2 >> Testing & Repair >> Remove/Install Catalytic Converter >> Remove/Install Catalytic Converter - AR49.10-P-5500MRD

Remove/Install Catalytic Converter - AR49.10-P-5500MRD

Engine 274.9 in model 213 

Engine 274.9 in model 238 

Fig 1: Catalytic Converter Components Location - Engine 274.9 In Model 213
G13746671WARNINGWARNINGREMOVINGINSTALLINGTORQUE SPECIFICATIONINSTALLATION IMPORTANTTORQUE SPECIFICATIONTORQUE SPECIFICATIONTORQUE SPECIFICATIONTORQUE SPECIFICATIONTORQUE SPECIFICATIONTORQUE SPECIFICATIONWARNINGCourtesy 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 ol the hazard area. AS49.00-Z-0001-01A 
WARNING 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 avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove air filter housing   AR09.10-P-1150MRD
2 Release and disconnect electrical connection for oxygen sensor upstream of catalytic converter (1)   AR07.04-P-0086MRD
3 Release and disconnect electrical connection for oxygen sensor downstream of catalytic converter (1)   AR07.04-P-0085MRD
4 Unclip electrical lines for oxygen sensors from brackets    
5 Detach rear bracket of air filter housing from cylinder head TORQUE SPECIFICATION M6X1 *BA00.10-P-1002-04A 
6 Remove center and rear lower engine compartment paneling INSTALLATION IMPORTANT Only install center and rear lower rear engine compartment paneling again after leak test. AR61.20-P-1105LWE
7 Open clamp (3) TORQUE SPECIFICATION Engine 274.9 in model 238Clamp to catalytic converter and front exhaust system *BA49.10-P-1002-02I 
TORQUE SPECIFICATION Engine 274.9 in model 213Clamp at catalytic converter and front exhaust system *BA49.10-P-1002-02G 
8 Detach catalytic converter (1) from ATL TORQUE SPECIFICATION Engine 274.9 in model 213Clamp at turbocharger and catalytic converter/front exhaust line *BA49.10-P-1001-02G 
TORQUE SPECIFICATION Engine 274.9 in model 238Clamp at turbocharger and catalytic converter/front exhaust line *BA49.10-P-1001-02I 
9 Detach catalytic converter (1) from bracket (2) and remove downwards TORQUE SPECIFICATION Engine 274.9 in model 238Screw/bolt/nut, catalytic converter to bracket *BA49.10-P-1005-02I 
TORQUE SPECIFICATION Engine 274.9 in model 213Screw/bolt/nut, catalytic converter to bracket *BA49.10-P-1005-02G 
10 Remove oxygen sensor upstream of catalytic converter When replacing catalytic converter (1). AR07.04-P-0086MRD
11 Remove oxygen sensor downstream of catalytic converter (1) When replacing catalytic converter (1). AR07.04-P-0085MRD
12 Remove combustion and corrosion residue at connecting points    
13 Install in the reverse order    
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
14 Carry out an engine test run and check exhaust system for leaktightness    
15 Install center and lower engine compartment paneling   AR61.20-P-1105LWE
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6X1 Nm 9 13
EXHAUST SYSTEM

Number Designation Model 213 with engine 274
BA49.10-P-1001-02G Clamp at turbocharger and catalytic converter/front exhaust line Nm 17
EXHAUST SYSTEM

Number Designation Model 238 with engine 274
BA49.10-P-1001-02I Clamp at turbocharger and catalytic converter/front exhaust line Nm 17
EXHAUST SYSTEM

Number Designation Model 213 with engine 274
BA49.10-P-1002-02G Clamp at catalytic converter and front exhaust system Nm 22
EXHAUST SYSTEM

Number Designation Model 238 with engine 274
BA49.10-P-1002-02I Clamp to catalytic converter and front exhaust system Nm 22
EXHAUST SYSTEM

Number Designation Model 213 with engine 274
BA49.10-P-1005-02G Screw/bolt/nut, catalytic converter to bracket Nm 25
EXHAUST SYSTEM

Number Designation Model 238 with engine 274
BA49.10-P-1005-02I Screw/bolt/nut, catalytic converter to bracket Nm 25