P1015 – Valvetronic Maximum Lift Not Reached (BMW)

Description

P1015 BMW indicates the Valvetronic system cannot reach the maximum valve lift position.

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Symptoms

  • Poor acceleration
  • Hesitation
  • Reduced power

Causes

  • Mechanical resistance
  • Motor wear
  • Sensor fault

Diagnosis

  • Check lift values
  • Inspect mechanism
  • Test motor

Repair

  • Repair mechanism
  • Replace motor
  • Replace sensor