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Home >> BMW >> 2021 >> M440i xDrive >> Repair and Diagnosis >> Electrical >> Gauges >> Engine Electrical System -- Repair (G22, G23 & G26) (1 Of 2) >> 12 14 Sensors >> 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan) >> Removing the knock sensors for cylinders 1 to 2

Removing the knock sensors for cylinders 1 to 2

Preliminary work 

NOTE: RISK OF DAMAGE 
Electrostatic discharge. 
Damage to or destruction of electrical components. 
  • Leave the electrical components in their original packaging until they are being installed. Only use the original packaging for returning the product. Always package removed components straight away.
  • Read and comply with user information on using the associated special tool 12 7 060.
  • Only tap the housings of electrical components. Do not tap pins or multi-pin connectors directly.
  • Wear electrically conductive clothing and antistatic shoes (with ESD symbol).
  • For additional information see: 61 35... NOTES ON ESD (ELECTROSTATIC DISCHARGE) PROTECTION .
G14192376Courtesy of BMW OF NORTH AMERICA, INC.