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Home >> BMW >> 2024 >> M3 CS >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> Exhaust System -- Repair -- M3 (G80) >> 18 32 Catalytic Converter >> 18 32 070 Removing and installing/replacing both catalytic converters (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) >> Removing both catalytic converters

Removing both catalytic converters

WARNING: Hot surfaces 
Risk of burning! 
  • Perform all work only on components that have cooled down
CAUTION: Component with heavy weight 
Injury hazard! 
  • Note component's center of gravity
  • Support component using a jack
  • Secure component against falling off the jack
CAUTION: Heavy component 
Heavy components can lead to injury or damage 
  • Remove and install heavy components with the aid of another person/other persons
NOTE: TECHNICAL INFORMATION 
Mount the exhaust system in a de-energized state, following the tightening sequence from the rear silencer towards the exhaust manifold

Preliminary work 

Removing the catalytic converter (cylinders 4 through 6) 

WARNING: Hot surfaces 
Risk of burning! 
  • Perform all work only on components that have cooled down
CAUTION: Component with heavy weight 
Injury hazard! 
  • Note component's center of gravity
  • Support component using a jack
  • Secure component against falling off the jack
CAUTION: Heavy component 
Heavy components can lead to injury or damage 
  • Remove and install heavy components with the aid of another person/other persons
G14903579Courtesy of BMW OF NORTH AMERICA, INC.
G14903580Courtesy of BMW OF NORTH AMERICA, INC.