• Shift concerns
  • Premature clutch failure
  • Ratio codes
  • Overheating


N88/N215/N216 Solenoid
Part No. 33421

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Sonnax solenoid 33421 is a direct replacement for any of three separate solenoids in the Audi 01J valve body:

  • The N88 solenoid, which controls clutch cooling and safety shut-off
  • The N215 solenoid, which controls clutch pressure
  • The N216 solenoid, which controls pulley ratio
  • 01J N88/N215/N216 Solenoid 33421