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Home >> BMW >> 2021 >> 840i 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Intake/Exhaust Valves & Valve Stem Seals -- Repair (G14, G15, & G16) >> 11 34 Intake/Exhaust Valves, Valve Stem Seals >> 11 34 552 Removing and installing/replacing all valves (cylinder head removed) (840i and 840i xDrive coupe/convertible/Gran Coupe sedan) >> Remove all valves

Remove all valves

Preliminary work. 

NOTE: RISK OF DAMAGE 
Contaminant or foreign body. 
Contamination can result in malfunctions, loss of function or leaks. 
  • Adhere to the utmost cleanliness.
  • Protect components from contamination e.g. by covering.
  • Close off line connections with seal plugs.