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Home >> Volkswagen >> 2012 >> Beetle Base, 2.5L Eng VIN X, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> 2.5L - Ignition/Glow Plug System - Engine Code(S): CBTA & CBUA (Hatchback) >> 28 Ignition/Glow Plug System >> Removal And Installation >> Knock Sensor
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Knock Sensor

NOTE: Two sensors are installed Knock Sensor 1 -G61- and Knock Sensor 2 -G66-.
Fig 1: Identifying Knock Sensor Overview
GWWM13-0196Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Cylinder Block
  2. Sealing Plug
    • 30 Nm
    • With rolled up seal
    • Bore in cylinder block for securing crankshaft with Crankshaft Locking Pin T40069
  3. Knock Sensor 1 -G61-
    • Pay attention to the installed position: the cable connection faces downward
  4. Bolts
    • 20 Nm
    • Tightening specifications affect function of knock sensor
  5. Bolt
    • 10 Nm
  6. Cover Plate
  7. Bayonet Connection
  8. Cable Clamp
    • Clamped on cover plate
  9. Knock Sensor 2 -G66-
    • Pay attention to the installed position: the cable connect faces outward 45° to the right
  10. Cable Bracket
    • Bolted to secondary air injection solenoid valve
  11. Connector
    • Green for Knock Sensor (KS) 1 -G61-
    • Installed position, refer to Fig 2
    • Contacts gold plated
  12. Connector
    • Gray for Knock Sensor 2 -G66-
    • Installed position, refer to Fig 2
    • Contacts gold plated
Fig 2: Identifying Installation Position Of Harness Connectors For Knock Sensors
GWWM28-0209Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Green for Knock Sensor 1 -G61-
  2. Gray for Knock Sensor 2 -G66-
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