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Home >> BMW >> 2021 >> X7 M50i >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Engine Electrical System -- Repair (G07) (1 Of 2) >> 12 14 Engine Control Module, Sensors >> 12 14 611 Replace the left knock sensor(s) (X7 xDrive50i xDrive 2019-2020, X7 M50i 2020-2022) >> Remove the left knock sensors

Remove the left knock sensors

WARNING: Car may slip off the vehicle hoist where components are supported  .
Danger! Immobilization period-threatening injuries! 
  • Secure the vehicle hoist against lowering and lifting.
  • Make sure that the vehicle does not lift off the mounting plates on the vehicle lift.
WARNING: Car may slip off the vehicle hoist if the weight is distributed unevenly  .
Danger! Immobilization period-threatening injuries! 
  • Ensure there is a specific weight compensation on the car.
WARNING: Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly  .
Danger! Immobilization period-threatening injuries! 
NOTE: TECHNICAL INFORMATION 
After a brake pad exchange and before pressing the brake pedal: It is imperative to apply the electromechanical parking brake.
If this is not observed, a CC message appears and the brake system switches to the emergency program. The brake booster is no longer active.

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
G15115283Courtesy of BMW OF NORTH AMERICA, INC.