P1212 – Turbocharger Control Fault (BMW)

Description

P1212 BMW indicates a fault in the turbocharger control system.

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Symptoms

  • Hesitation
  • Reduced power
  • Limp mode

Causes

  • Control solenoid failure
  • Vacuum leak
  • ECU issue

Diagnosis

  • Test solenoid
  • Inspect vacuum system
  • Scan DME

Repair

  • Replace solenoid
  • Fix vacuum leaks
  • Repair ECU

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