P1035 – VANOS Adaptation Fault (BMW)

Description

P1035 BMW indicates the VANOS system cannot complete adaptation.

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Symptoms

  • Hesitation
  • Rough idle
  • Reduced power

Causes

  • Low voltage
  • Oil contamination
  • Sensor error

Diagnosis

  • Check battery voltage
  • Inspect oil
  • Scan DME

Repair

  • Charge battery
  • Change oil
  • Replace sensor