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Home >> BMW >> 2021 >> 840i xDrive 2D Convertible >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Engine Electrical System -- Repair (G14, G15, & G16) >> 12 51 Engine Wiring Harness >> 12 51 251 Remove and install/replace blow-off valve wiring harness, cylinders 5-8 (M850i xDrive coupe/convertible/Gran Coupe sedan) >> Removing the wiring harness section of the blow-off valve for cylinders 5-8

Removing the wiring harness section of the blow-off valve for cylinders 5-8

WARNING: Hot surfaces. 
Risk of burning! 
  • Perform all work only on components that have cooled down.

Preliminary work 

G14390464Courtesy of BMW OF NORTH AMERICA, INC.