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Clean sealing surfaces

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.
NOTE: RISK OF DAMAGE 
Damage to the surface. 
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage. 
  • Do not use any metal-cutting tools.
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents.
NOTE: TECHNICAL INFORMATION 
The inside of the lid or the interior of the housing must be free of sealing residues and other foreign bodies.
G15544846Courtesy of BMW OF NORTH AMERICA, INC.